Initial revision

From-SVN: r102074
This commit is contained in:
Tom Tromey 2005-07-16 00:30:23 +00:00
parent 6f4434b39b
commit f911ba985a
4557 changed files with 1000262 additions and 0 deletions

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/* java.lang.reflect.AccessibleObject
Copyright (C) 2001, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* This class is the superclass of various reflection classes, and
* allows sufficiently trusted code to bypass normal restrictions to
* do necessary things like invoke private methods outside of the
* class during Serialization. If you don't have a good reason
* to mess with this, don't try. Fortunately, there are adequate
* security checks before you can set a reflection object as accessible.
*
* @author Tom Tromey (tromey@cygnus.com)
* @author Eric Blake (ebb9@email.byu.edu)
* @see Field
* @see Constructor
* @see Method
* @see ReflectPermission
* @since 1.2
* @status updated to 1.4
*/
public class AccessibleObject
{
/**
* True if this object is marked accessible, which means the reflected
* object bypasses normal security checks.
*/
// default visibility for use by inherited classes
boolean flag = false;
/**
* Only the three reflection classes that extend this can create an
* accessible object. This is not serializable for security reasons.
*/
protected AccessibleObject()
{
}
/**
* Return the accessibility status of this object.
*
* @return true if this object bypasses security checks
*/
public boolean isAccessible()
{
return flag;
}
/**
* Convenience method to set the flag on a number of objects with a single
* security check. If a security manager exists, it is checked for
* <code>ReflectPermission("suppressAccessChecks")</code>.<p>
*
* It is forbidden to set the accessibility flag to true on any constructor
* for java.lang.Class. This will result in a SecurityException. If the
* SecurityException is thrown for any of the passed AccessibleObjects,
* the accessibility flag will be set on AccessibleObjects in the array prior
* to the one which resulted in the exception.
*
* @param array the array of accessible objects
* @param flag the desired state of accessibility, true to bypass security
* @throws NullPointerException if array is null
* @throws SecurityException if the request is denied
* @see SecurityManager#checkPermission(java.security.Permission)
* @see RuntimePermission
*/
public static void setAccessible(AccessibleObject[] array, boolean flag)
{
checkPermission();
for (int i = 0; i < array.length; i++)
array[i].secureSetAccessible(flag);
}
/**
* Sets the accessibility flag for this reflection object. If a security
* manager exists, it is checked for
* <code>ReflectPermission("suppressAccessChecks")</code>.<p>
*
* It is forbidden to set the accessibility flag to true on any constructor for
* java.lang.Class. This will result in a SecurityException.
*
* @param flag the desired state of accessibility, true to bypass security
* @throws NullPointerException if array is null
* @throws SecurityException if the request is denied
* @see SecurityManager#checkPermission(java.security.Permission)
* @see RuntimePermission
*/
public void setAccessible(boolean flag)
{
checkPermission();
secureSetAccessible(flag);
}
/**
* Performs the specified security check, for
* <code>ReflectPermission("suppressAccessChecks")</code>.
*
* @throws SecurityException if permission is denied
*/
private static void checkPermission()
{
SecurityManager sm = System.getSecurityManager();
if (sm != null)
sm.checkPermission(new ReflectPermission("suppressAccessChecks"));
}
/**
* Performs the actual accessibility change, this must always be invoked
* after calling checkPermission.
*
* @param flag the desired status
* @throws SecurityException if flag is true and this is a constructor
* for <code>java.lang.Class</code>.
*/
private void secureSetAccessible(boolean flag)
{
if (flag &&
(this instanceof Constructor
&& ((Constructor) this).getDeclaringClass() == Class.class))
throw new SecurityException("Cannot make object accessible: " + this);
this.flag = flag;
}
}

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/* java.lang.reflect.Array - manipulate arrays by reflection
Copyright (C) 1998, 1999, 2001, 2003, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
import gnu.classpath.Configuration;
/**
* Array holds static helper functions that allow you to create and
* manipulate arrays by reflection. Operations know how to perform widening
* conversions, but throw {@link IllegalArgumentException} if you attempt
* a narrowing conversion. Also, when accessing primitive arrays, this
* class performs object wrapping and unwrapping as necessary.<p>
*
* <B>Note:</B> This class returns and accepts types as Classes, even
* primitive types; there are Class types defined that represent each
* different primitive type. They are <code>java.lang.Boolean.TYPE,
* java.lang.Byte.TYPE,</code>, also available as <code>boolean.class,
* byte.class</code>, etc. These are not to be confused with the
* classes <code>java.lang.Boolean, java.lang.Byte</code>, etc., which are
* real classes. Note also that the shorthand <code>Object[].class</code>
* is a convenient way to get array Classes.<p>
*
* <B>Performance note:</B> This class performs best when it does not have
* to convert primitive types. The further along the chain it has to convert,
* the worse performance will be. You're best off using the array as whatever
* type it already is, and then converting the result. You will do even
* worse if you do this and use the generic set() function.
*
* @author John Keiser
* @author Eric Blake (ebb9@email.byu.edu)
* @author Per Bothner (bothner@cygnus.com)
* @see java.lang.Boolean#TYPE
* @see java.lang.Byte#TYPE
* @see java.lang.Short#TYPE
* @see java.lang.Character#TYPE
* @see java.lang.Integer#TYPE
* @see java.lang.Long#TYPE
* @see java.lang.Float#TYPE
* @see java.lang.Double#TYPE
* @since 1.1
* @status updated to 1.4
*/
public final class Array
{
static
{
if (Configuration.INIT_LOAD_LIBRARY)
{
System.loadLibrary("javalangreflect");
}
}
/**
* This class is uninstantiable.
*/
private Array()
{
}
/**
* Creates a new single-dimensioned array.
* @param componentType the type of the array to create
* @param length the length of the array to create
* @return the created array, cast to an Object
* @throws NullPointerException if <code>componentType</code> is null
* @throws IllegalArgumentException if <code>componentType</code> is
* <code>Void.TYPE</code>
* @throws NegativeArraySizeException when length is less than 0
* @throws OutOfMemoryError if memory allocation fails
*/
public static Object newInstance(Class componentType, int length)
{
if (! componentType.isPrimitive())
return createObjectArray(componentType, length);
if (componentType == boolean.class)
return new boolean[length];
if (componentType == byte.class)
return new byte[length];
if (componentType == char.class)
return new char[length];
if (componentType == short.class)
return new short[length];
if (componentType == int.class)
return new int[length];
if (componentType == long.class)
return new long[length];
if (componentType == float.class)
return new float[length];
if (componentType == double.class)
return new double[length];
// assert componentType == void.class
throw new IllegalArgumentException();
}
/**
* Creates a new multi-dimensioned array. The new array has the same
* component type as the argument class, and the number of dimensions
* in the new array is the sum of the dimensions of the argument class
* and the length of the argument dimensions. Virtual Machine limitations
* forbid too many dimensions (usually 255 is the maximum); but even
* 50 dimensions of 2 elements in each dimension would exceed your memory
* long beforehand!
*
* @param componentType the type of the array to create.
* @param dimensions the dimensions of the array to create. Each element
* in <code>dimensions</code> makes another dimension of the new
* array. Thus, <code>Array.newInstance(java.lang.Boolean,
* new int[]{1,2,3})</code> is the same as
* <code>new java.lang.Boolean[1][2][3]</code>
* @return the created array, cast to an Object
* @throws NullPointerException if componentType or dimension is null
* @throws IllegalArgumentException if the the size of
* <code>dimensions</code> is 0 or exceeds the maximum number of
* array dimensions in the VM; or if componentType is Void.TYPE
* @throws NegativeArraySizeException when any of the dimensions is less
* than 0
* @throws OutOfMemoryError if memory allocation fails
*/
public static Object newInstance(Class componentType, int[] dimensions)
{
if (dimensions.length <= 0)
throw new IllegalArgumentException ("Empty dimensions array.");
return createMultiArray(componentType, dimensions,
dimensions.length - 1);
}
/**
* Gets the array length.
* @param array the array
* @return the length of the array
* @throws IllegalArgumentException if <code>array</code> is not an array
* @throws NullPointerException if <code>array</code> is null
*/
public static int getLength(Object array)
{
if (array instanceof Object[])
return ((Object[]) array).length;
if (array instanceof boolean[])
return ((boolean[]) array).length;
if (array instanceof byte[])
return ((byte[]) array). length;
if (array instanceof char[])
return ((char[]) array).length;
if (array instanceof short[])
return ((short[]) array).length;
if (array instanceof int[])
return ((int[]) array).length;
if (array instanceof long[])
return ((long[]) array).length;
if (array instanceof float[])
return ((float[]) array).length;
if (array instanceof double[])
return ((double[]) array).length;
if (array == null)
throw new NullPointerException();
throw new IllegalArgumentException();
}
/**
* Gets an element of an array. Primitive elements will be wrapped in
* the corresponding class type.
*
* @param array the array to access
* @param index the array index to access
* @return the element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not an array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #getBoolean(Object, int)
* @see #getByte(Object, int)
* @see #getChar(Object, int)
* @see #getShort(Object, int)
* @see #getInt(Object, int)
* @see #getLong(Object, int)
* @see #getFloat(Object, int)
* @see #getDouble(Object, int)
*/
public static Object get(Object array, int index)
{
if (array instanceof Object[])
return ((Object[]) array)[index];
if (array instanceof boolean[])
return ((boolean[]) array)[index] ? Boolean.TRUE : Boolean.FALSE;
if (array instanceof byte[])
return new Byte(((byte[]) array)[index]);
if (array instanceof char[])
return new Character(((char[]) array)[index]);
if (array instanceof short[])
return new Short(((short[]) array)[index]);
if (array instanceof int[])
return new Integer(((int[]) array)[index]);
if (array instanceof long[])
return new Long(((long[]) array)[index]);
if (array instanceof float[])
return new Float(((float[]) array)[index]);
if (array instanceof double[])
return new Double(((double[]) array)[index]);
if (array == null)
throw new NullPointerException();
throw new IllegalArgumentException();
}
/**
* Gets an element of a boolean array.
*
* @param array the array to access
* @param index the array index to access
* @return the boolean element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a boolean
* array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static boolean getBoolean(Object array, int index)
{
if (array instanceof boolean[])
return ((boolean[]) array)[index];
if (array == null)
throw new NullPointerException();
throw new IllegalArgumentException();
}
/**
* Gets an element of a byte array.
*
* @param array the array to access
* @param index the array index to access
* @return the byte element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a byte
* array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static byte getByte(Object array, int index)
{
if (array instanceof byte[])
return ((byte[]) array)[index];
if (array == null)
throw new NullPointerException();
throw new IllegalArgumentException();
}
/**
* Gets an element of a char array.
*
* @param array the array to access
* @param index the array index to access
* @return the char element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a char
* array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static char getChar(Object array, int index)
{
if (array instanceof char[])
return ((char[]) array)[index];
if (array == null)
throw new NullPointerException();
throw new IllegalArgumentException();
}
/**
* Gets an element of a short array.
*
* @param array the array to access
* @param index the array index to access
* @return the short element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a byte
* or char array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static short getShort(Object array, int index)
{
if (array instanceof short[])
return ((short[]) array)[index];
return getByte(array, index);
}
/**
* Gets an element of an int array.
*
* @param array the array to access
* @param index the array index to access
* @return the int element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a byte,
* char, short, or int array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static int getInt(Object array, int index)
{
if (array instanceof int[])
return ((int[]) array)[index];
if (array instanceof char[])
return ((char[]) array)[index];
return getShort(array, index);
}
/**
* Gets an element of a long array.
*
* @param array the array to access
* @param index the array index to access
* @return the long element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a byte,
* char, short, int, or long array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static long getLong(Object array, int index)
{
if (array instanceof long[])
return ((long[]) array)[index];
return getInt(array, index);
}
/**
* Gets an element of a float array.
*
* @param array the array to access
* @param index the array index to access
* @return the float element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a byte,
* char, short, int, long, or float array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static float getFloat(Object array, int index)
{
if (array instanceof float[])
return ((float[]) array)[index];
return getLong(array, index);
}
/**
* Gets an element of a double array.
*
* @param array the array to access
* @param index the array index to access
* @return the double element at <code>array[index]</code>
* @throws IllegalArgumentException if <code>array</code> is not a byte,
* char, short, int, long, float, or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #get(Object, int)
*/
public static double getDouble(Object array, int index)
{
if (array instanceof double[])
return ((double[]) array)[index];
return getFloat(array, index);
}
/**
* Sets an element of an array. If the array is primitive, then the new
* value is unwrapped and widened.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not an array,
* or the array is primitive and unwrapping value fails, or the
* value is not assignable to the array component type
* @throws NullPointerException if array is null, or if array is primitive
* and value is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #setBoolean(Object, int, boolean)
* @see #setByte(Object, int, byte)
* @see #setChar(Object, int, char)
* @see #setShort(Object, int, short)
* @see #setInt(Object, int, int)
* @see #setLong(Object, int, long)
* @see #setFloat(Object, int, float)
* @see #setDouble(Object, int, double)
*/
public static void set(Object array, int index, Object value)
{
if (array instanceof Object[])
{
// Too bad the API won't let us throw the easier ArrayStoreException!
if (value != null
&& ! array.getClass().getComponentType().isInstance(value))
throw new IllegalArgumentException();
((Object[]) array)[index] = value;
}
else if (value instanceof Byte)
setByte(array, index, ((Byte) value).byteValue());
else if (value instanceof Short)
setShort(array, index, ((Short) value).shortValue());
else if (value instanceof Integer)
setInt(array, index, ((Integer) value).intValue());
else if (value instanceof Long)
setLong(array, index, ((Long) value).longValue());
else if (value instanceof Float)
setFloat(array, index, ((Float) value).floatValue());
else if (value instanceof Double)
setDouble(array, index, ((Double) value).doubleValue());
else if (value instanceof Character)
setChar(array, index, ((Character) value).charValue());
else if (value instanceof Boolean)
setBoolean(array, index, ((Boolean) value).booleanValue());
else if (array == null)
throw new NullPointerException();
else
throw new IllegalArgumentException();
}
/**
* Sets an element of a boolean array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a boolean
* array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setBoolean(Object array, int index, boolean value)
{
if (array instanceof boolean[])
((boolean[]) array)[index] = value;
else if (array == null)
throw new NullPointerException();
else
throw new IllegalArgumentException();
}
/**
* Sets an element of a byte array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a byte,
* short, int, long, float, or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setByte(Object array, int index, byte value)
{
if (array instanceof byte[])
((byte[]) array)[index] = value;
else
setShort(array, index, value);
}
/**
* Sets an element of a char array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a char,
* int, long, float, or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setChar(Object array, int index, char value)
{
if (array instanceof char[])
((char[]) array)[index] = value;
else
setInt(array, index, value);
}
/**
* Sets an element of a short array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a short,
* int, long, float, or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setShort(Object array, int index, short value)
{
if (array instanceof short[])
((short[]) array)[index] = value;
else
setInt(array, index, value);
}
/**
* Sets an element of an int array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not an int,
* long, float, or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setInt(Object array, int index, int value)
{
if (array instanceof int[])
((int[]) array)[index] = value;
else
setLong(array, index, value);
}
/**
* Sets an element of a long array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a long,
* float, or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setLong(Object array, int index, long value)
{
if (array instanceof long[])
((long[]) array)[index] = value;
else
setFloat(array, index, value);
}
/**
* Sets an element of a float array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a float
* or double array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setFloat(Object array, int index, float value)
{
if (array instanceof float[])
((float[]) array)[index] = value;
else
setDouble(array, index, value);
}
/**
* Sets an element of a double array.
*
* @param array the array to set a value of
* @param index the array index to set the value to
* @param value the value to set
* @throws IllegalArgumentException if <code>array</code> is not a double
* array
* @throws NullPointerException if <code>array</code> is null
* @throws ArrayIndexOutOfBoundsException if <code>index</code> is out of
* bounds
* @see #set(Object, int, Object)
*/
public static void setDouble(Object array, int index, double value)
{
if (array instanceof double[])
((double[]) array)[index] = value;
else if (array == null)
throw new NullPointerException();
else
throw new IllegalArgumentException();
}
/**
* Dynamically and recursively create a multi-dimensioned array of objects.
*
* @param type guaranteed to be a valid object type
* @param dimensions the dimensions of the array
* @param index index of the current dimension to build
* @return the new multi-dimensioned array
* @throws NegativeArraySizeException if any entry of dimensions is negative
* @throws OutOfMemoryError if memory allocation fails
*/
// This would be faster if implemented natively, using the multianewarray
// bytecode instead of this recursive call
private static Object createMultiArray(Class type, int[] dimensions,
int index)
{
if (index == 0)
return newInstance(type, dimensions[0]);
Object toAdd = createMultiArray(type, dimensions, index - 1);
Class thisType = toAdd.getClass();
Object[] retval
= (Object[]) createObjectArray(thisType, dimensions[index]);
if (dimensions[index] > 0)
retval[0] = toAdd;
int i = dimensions[index];
while (--i > 0)
retval[i] = createMultiArray(type, dimensions, index - 1);
return retval;
}
/**
* Dynamically create an array of objects.
*
* @param type guaranteed to be a valid object type
* @param dim the length of the array
* @return the new array
* @throws NegativeArraySizeException if dim is negative
* @throws OutOfMemoryError if memory allocation fails
*/
private static native Object createObjectArray(Class type, int dim);
}

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/* GenericArrayType.java - Represent an array type with a generic component
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* Represents the type of an array's components, which may be
* either a parameterized type or a type variable.
*
* @author Tom Tromey (tromey@redhat.com)
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
public interface GenericArrayType
extends Type
{
/**
* Returns the <code>Type</code> of the components within the array.
*
* @return a <code>Type</code> instance representing the type of
* the array's components.
*/
Type getGenericComponentType();
}

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/* GenericSignatureFormatError.java - Thrown when a signature is malformed.
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* Thrown on encountering a syntactically malformed signature in
* a reflective method. During reflection, the generic type signature
* of a type, method or constructor may be interpreted by the virtual
* machine. This error is thrown if this operation fails.
*
* @author Tom Tromey (tromey@redhat.com)
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
public class GenericSignatureFormatError
extends ClassFormatError
{
/**
* Constructs a new <code>GenericSignatureFormatError</code>.
*/
public GenericSignatureFormatError()
{
}
}

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/* java.lang.reflect.InvocationHandler - dynamically executes methods in
proxy instances
Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* This interface defines an invocation handler. Suppose you are using
* reflection, and found a method that requires that its parameter
* be an object of a given interface. You want to call this method,
* but have no idea what classes implement that interface. So, you can
* create a {@link Proxy} instance, a convenient way to dynamically
* generate a class that meets all the necessary properties of that
* interface. But in order for the proxy instance to do any good, it
* needs to know what to do when interface methods are invoked! So,
* this interface is basically a cool wrapper that provides runtime
* code generation needed by proxy instances.
*
* <p>While this interface was designed for use by Proxy, it will also
* work on any object in general.</p>
*
* <p>Hints for implementing this class:</p>
*
* <ul>
* <li>Don't forget that Object.equals, Object.hashCode, and
* Object.toString will call this handler. In particular,
* a naive call to proxy.equals, proxy.hashCode, or proxy.toString
* will put you in an infinite loop. And remember that string
* concatenation also invokes toString.</li>
* <li>Obey the contract of the Method object you are handling, or
* the proxy instance will be forced to throw a
* {@link NullPointerException}, {@link ClassCastException},
* or {@link UndeclaredThrowableException}.</li>
* <li>Be prepared to wrap/unwrap primitives as necessary.</li>
* <li>The Method object may be owned by a different interface than
* what was actually used as the qualifying type of the method
* invocation in the Java source code. This means that it might
* not always be safe to throw an exception listed as belonging
* to the method's throws clause.</li>
* </ul>
*
* <p><small>For a fun time, create an InvocationHandler that handles the
* methods of a proxy instance of the InvocationHandler interface!</small></p>
*
* @see Proxy
* @see UndeclaredThrowableException
*
* @author Eric Blake (ebb9@email.byu.edu)
* @since 1.3
* @status updated to 1.4
*/
public interface InvocationHandler
{
/**
* When a method is invoked on a proxy instance, it is wrapped and
* this method is called instead, so that you may decide at runtime
* how the original method should behave.
*
* @param proxy the instance that the wrapped method should be
* invoked on. When this method is called by a Proxy object,
* `proxy' will be an instance of {@link Proxy}, and oddly enough,
* <code>Proxy.getInvocationHandler(proxy)</code> will return
* <code>this</code>!
* @param method the reflected method to invoke on the proxy.
* When this method is called by a Proxy object, 'method'
* will be the reflection object owned by the declaring
* class or interface, which may be a supertype of the
* interfaces the proxy directly implements.
* @param args the arguments passed to the original method, or
* <code>null</code> if the method takes no arguments.
* (But also be prepared to handle a 0-length array).
* Arguments of primitive type, such as <code>boolean</code>
* or <code>int</code>, are wrapped in the appropriate
* class such as {@link Boolean} or {@link Integer}.
* @return whatever is necessary to return from the wrapped method.
* If the wrapped method is <code>void</code>, the proxy
* instance will ignore it. If the wrapped method returns
* a primitive, this must be the correct wrapper type whose value
* is exactly assignable to the appropriate type (no widening
* will be performed); a null object in this case causes a
* {@link NullPointerException}. In all remaining cases, if
* the returned object is not assignment compatible to the
* declared type of the original method, the proxy instance
* will generate a {@link ClassCastException}.
* @throws Throwable this interface is listed as throwing anything,
* but the implementation should only throw unchecked
* exceptions and exceptions listed in the throws clause of
* all methods being overridden by the proxy instance. If
* something is thrown that is not compatible with the throws
* clause of all overridden methods, the proxy instance will
* wrap the exception in an UndeclaredThrowableException.
* Note that an exception listed in the throws clause of the
* `method' parameter might not be declared in additional
* interfaces also implemented by the proxy object.
*
* @see Proxy
* @see UndeclaredThrowableException
*/
Object invoke(Object proxy, Method method, Object[] args)
throws Throwable;
}

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/* InvocationTargetException.java -- Wrapper exception for reflection
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* InvocationTargetException is sort of a way to "wrap" whatever exception
* comes up when a method or constructor is called via Reflection. As of
* JDK 1.4, it was retrofitted to match the exception chaining of all other
* exceptions, but <code>getTargetException()</code> still works.
*
* @author John Keiser
* @author Tom Tromey (tromey@cygnus.com)
* @author Eric Blake (ebb9@email.byu.edu)
* @see Method#invoke(Object,Object[])
* @see Constructor#newInstance(Object[])
* @since 1.1
* @status updated to 1.4
*/
public class InvocationTargetException extends Exception
{
/**
* Compatible with JDK 1.1+.
*/
private static final long serialVersionUID = 4085088731926701167L;
/**
* The chained exception. This field is only around for serial compatibility.
*
* @serial the chained exception
*/
private final Throwable target;
/**
* Construct an exception with null as the cause. The cause is initialized
* to null.
*/
protected InvocationTargetException()
{
this(null, null);
}
/**
* Create an <code>InvocationTargetException</code> using another
* exception.
*
* @param targetException the exception to wrap
*/
public InvocationTargetException(Throwable targetException)
{
this(targetException, null);
}
/**
* Create an <code>InvocationTargetException</code> using another
* exception and an error message.
*
* @param targetException the exception to wrap
* @param err an extra reason for the exception-throwing
*/
public InvocationTargetException(Throwable targetException, String err)
{
super(err, targetException);
target = targetException;
}
/**
* Get the wrapped (targeted) exception.
*
* @return the targeted exception
* @see #getCause()
*/
public Throwable getTargetException()
{
return target;
}
/**
* Returns the cause of this exception (which may be null).
*
* @return the cause
* @since 1.4
*/
public Throwable getCause()
{
return target;
}
}

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/* java.lang.reflect.Member - common query methods in reflection
Copyright (C) 1998, 1999, 2001, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* Member is an interface that represents any member of a class (field or
* method) or a constructor. You can get information about the declaring
* class, name or modifiers of the member with this interface.
*
* @author John Keiser
* @author Per Bothner (bothner@cygnus.com)
* @author Eric Blake (ebb9@email.byu.edu)
* @see Class
* @see Field
* @see Method
* @see Constructor
* @since 1.1
* @status updated to 1.4
*/
public interface Member
{
/**
* Represents all members, whether public, private, protected or
* package-protected, but only which are declared in this class.
* Used in SecurityManager.checkMemberAccess() to determine the
* type of members to access.
* @see SecurityManager#checkMemberAccess()
*/
int DECLARED = 1;
/**
* Represents public members only, but includes all inherited members.
* Used in SecurityManager.checkMemberAccess() to determine the type of
* members to access.
* @see SecurityManager#checkMemberAccess()
*/
int PUBLIC = 0;
/**
* Gets the class that declared this member. This is not the class where
* this method was called, or even the class where this Member object
* came to life, but the class that declares the member this represents.
*
* @return the class that declared this member
*/
Class getDeclaringClass();
/**
* Gets the simple name of this member. This will be a valid Java
* identifier, with no qualification.
*
* @return the name of this member
*/
String getName();
/**
* Gets the modifiers this member uses. Use the <code>Modifier</code>
* class to interpret the values.
*
* @return an integer representing the modifiers to this Member
* @see Modifier
*/
int getModifiers();
}

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/* java.lang.reflect.Modifier
Copyright (C) 1998, 1999, 2001, 2002, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* Modifier is a helper class with static methods to determine whether an
* int returned from getModifiers() represents static, public, protected,
* native, final, etc... and provides an additional method to print
* out all of the modifiers in an int in order.
* <p>
* The methods in this class use the bitmask values in the VM spec to
* determine the modifiers of an int. This means that a VM must return a
* standard mask, conformant with the VM spec. I don't know if this is how
* Sun does it, but I'm willing to bet money that it is.
*
* @author John Keiser
* @author Tom Tromey (tromey@cygnus.com)
* @author Eric Blake (ebb9@email.byu.edu)
* @see Member#getModifiers()
* @see Method#getModifiers()
* @see Field#getModifiers()
* @see Constructor#getModifiers()
* @see Class#getModifiers()
* @since 1.1
*/
public class Modifier
{
/** <STRONG>This constructor really shouldn't be here ... there are no
* instance methods or variables of this class, so instantiation is
* worthless. However, this function is in the 1.1 spec, so it is added
* for completeness.</STRONG>
*/
public Modifier()
{
}
/**
* Public: accessible from any other class.
*/
public static final int PUBLIC = 0x0001;
/**
* Private: accessible only from the same enclosing class.
*/
public static final int PRIVATE = 0x0002;
/**
* Protected: accessible only to subclasses, or within the package.
*/
public static final int PROTECTED = 0x0004;
/**
* Static:<br><ul>
* <li>Class: no enclosing instance for nested class.</li>
* <li>Field or Method: can be accessed or invoked without an
* instance of the declaring class.</li>
* </ul>
*/
public static final int STATIC = 0x0008;
/**
* Final:<br><ul>
* <li>Class: no subclasses allowed.</li>
* <li>Field: cannot be changed.</li>
* <li>Method: cannot be overriden.</li>
* </ul>
*/
public static final int FINAL = 0x0010;
/**
* Synchronized: Method: lock the class while calling this method.
*/
public static final int SYNCHRONIZED = 0x0020;
/**
* Volatile: Field: cannot be cached.
*/
public static final int VOLATILE = 0x0040;
/**
* Transient: Field: not serialized or deserialized.
*/
public static final int TRANSIENT = 0x0080;
/**
* Native: Method: use JNI to call this method.
*/
public static final int NATIVE = 0x0100;
/**
* Interface: Class: is an interface.
*/
public static final int INTERFACE = 0x0200;
/**
* Abstract:<br><ul>
* <li>Class: may not be instantiated.</li>
* <li>Method: may not be called.</li>
* </ul>
*/
public static final int ABSTRACT = 0x0400;
/**
* Strictfp: Method: expressions are FP-strict.<p>
* Also used as a modifier for classes, to mean that all initializers
* and constructors are FP-strict, but does not show up in
* Class.getModifiers.
*/
public static final int STRICT = 0x0800;
/**
* Super - treat invokespecial as polymorphic so that super.foo() works
* according to the JLS. This is a reuse of the synchronized constant
* to patch a hole in JDK 1.0. *shudder*.
*/
static final int SUPER = 0x0020;
/**
* All the flags, only used by code in this package.
*/
static final int ALL_FLAGS = 0xfff;
/**
* Check whether the given modifier is abstract.
* @param mod the modifier.
* @return <code>true</code> if abstract, <code>false</code> otherwise.
*/
public static boolean isAbstract(int mod)
{
return (mod & ABSTRACT) != 0;
}
/**
* Check whether the given modifier is final.
* @param mod the modifier.
* @return <code>true</code> if final, <code>false</code> otherwise.
*/
public static boolean isFinal(int mod)
{
return (mod & FINAL) != 0;
}
/**
* Check whether the given modifier is an interface.
* @param mod the modifier.
* @return <code>true</code> if an interface, <code>false</code> otherwise.
*/
public static boolean isInterface(int mod)
{
return (mod & INTERFACE) != 0;
}
/**
* Check whether the given modifier is native.
* @param mod the modifier.
* @return <code>true</code> if native, <code>false</code> otherwise.
*/
public static boolean isNative(int mod)
{
return (mod & NATIVE) != 0;
}
/**
* Check whether the given modifier is private.
* @param mod the modifier.
* @return <code>true</code> if private, <code>false</code> otherwise.
*/
public static boolean isPrivate(int mod)
{
return (mod & PRIVATE) != 0;
}
/**
* Check whether the given modifier is protected.
* @param mod the modifier.
* @return <code>true</code> if protected, <code>false</code> otherwise.
*/
public static boolean isProtected(int mod)
{
return (mod & PROTECTED) != 0;
}
/**
* Check whether the given modifier is public.
* @param mod the modifier.
* @return <code>true</code> if public, <code>false</code> otherwise.
*/
public static boolean isPublic(int mod)
{
return (mod & PUBLIC) != 0;
}
/**
* Check whether the given modifier is static.
* @param mod the modifier.
* @return <code>true</code> if static, <code>false</code> otherwise.
*/
public static boolean isStatic(int mod)
{
return (mod & STATIC) != 0;
}
/**
* Check whether the given modifier is strictfp.
* @param mod the modifier.
* @return <code>true</code> if strictfp, <code>false</code> otherwise.
*/
public static boolean isStrict(int mod)
{
return (mod & STRICT) != 0;
}
/**
* Check whether the given modifier is synchronized.
* @param mod the modifier.
* @return <code>true</code> if synchronized, <code>false</code> otherwise.
*/
public static boolean isSynchronized(int mod)
{
return (mod & SYNCHRONIZED) != 0;
}
/**
* Check whether the given modifier is transient.
* @param mod the modifier.
* @return <code>true</code> if transient, <code>false</code> otherwise.
*/
public static boolean isTransient(int mod)
{
return (mod & TRANSIENT) != 0;
}
/**
* Check whether the given modifier is volatile.
* @param mod the modifier.
* @return <code>true</code> if volatile, <code>false</code> otherwise.
*/
public static boolean isVolatile(int mod)
{
return (mod & VOLATILE) != 0;
}
/**
* Get a string representation of all the modifiers represented by the
* given int. The keywords are printed in this order:
* <code>&lt;public|protected|private&gt; abstract static final transient
* volatile synchronized native strictfp interface</code>.
*
* @param mod the modifier.
* @return the String representing the modifiers.
*/
public static String toString(int mod)
{
return toString(mod, new StringBuffer()).toString();
}
/**
* Package helper method that can take a StringBuffer.
* @param mod the modifier
* @param r the StringBuffer to which the String representation is appended
* @return r, with information appended
*/
static StringBuffer toString(int mod, StringBuffer r)
{
if (isPublic(mod))
r.append("public ");
if (isProtected(mod))
r.append("protected ");
if (isPrivate(mod))
r.append("private ");
if (isAbstract(mod))
r.append("abstract ");
if (isStatic(mod))
r.append("static ");
if (isFinal(mod))
r.append("final ");
if (isTransient(mod))
r.append("transient ");
if (isVolatile(mod))
r.append("volatile ");
if (isSynchronized(mod))
r.append("synchronized ");
if (isNative(mod))
r.append("native ");
if (isStrict(mod))
r.append("strictfp ");
if (isInterface(mod))
r.append("interface ");
// Trim trailing space.
if ((mod & ALL_FLAGS) != 0)
r.setLength(r.length() - 1);
return r;
}
}

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@ -0,0 +1,122 @@
/* ParameterizedType.java -- Represents parameterized types e.g. List<String>
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* <p>
* Represents a type which is parameterized over one or more other
* types. For example, <code>List&lt;Integer&gt;</code> is a parameterized
* type, with <code>List</code> parameterized over the type
* <code>Integer</code>.
* </p>
* <p>
* Instances of this classes are created as needed, during reflection.
* On creating a parameterized type, <code>p</code>, the
* <code>GenericTypeDeclaration</code> corresponding to <code>p</code>
* is created and resolved. Each type argument of <code>p</code>
* is then created recursively; details of this process are availble
* in the documentation of <code>TypeVariable</code>. This creation
* process only happens once; repetition has no effect.
* </p>
* <p>
* Implementors of this interface must implement an appropriate
* <code>equals()</code> method. This method should equate any
* two instances of the implementing class that have the same
* <code>GenericTypeDeclaration</code> and <code>Type</code>
* parameters.
*
* @author Tom Tromey (tromey@redhat.com)
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @see GenericTypeDeclaration
* @see TypeVariable
* @since 1.5
*/
public interface ParameterizedType
extends Type
{
/**
* <p>
* Returns an array of <code>Type</code> objects, which gives
* the parameters of this type.
* </p>
* <p>
* <strong>Note</code>: the returned array may be empty. This
* occurs if the supposed <code>ParameterizedType</code> is simply
* a normal type wrapped inside a parameterized type.
* </p>
*
* @return an array of <code>Type</code>s, representing the arguments
* of this type.
* @throws TypeNotPresentException if any of the types referred to by
* the parameters of this type do not actually exist.
* @throws MalformedParameterizedTypeException if any of the types
* refer to a type which can not be instantiated.
*/
Type[] getActualTypeArguments();
/**
* Returns the type of which this type is a member. For example,
* in <code>Top&lt;String&gt;.Bottom&lt;Integer&gt;</code>,
* <code>Bottom&lt;Integer&gt;</code> is a member of
* <code>Top&lt;String&gt;</code>, and so the latter is returned
* by this method. Calling this method on top-level types (such as
* <code>Top&lt;String&gt;</code>) returns null.
*
* @return the type which owns this type.
* @throws TypeNotPresentException if the owner type referred to by
* this type do not actually exist.
* @throws MalformedParameterizedTypeException if the owner type
* referred to by this type can not be instantiated.
*/
Type getOwnerType();
/**
* Returns a version of this type without parameters, which corresponds
* to the class or interface which declared the type. For example,
* the raw type corresponding to <code>List&lt;Double&gt;</code>
* is <code>List</code>, which was declared by the <code>List</code>
* class.
*
* @return the raw variant of this type (i.e. the type without
* parameters).
*/
Type getRawType();
}

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README for java.lang.reflect:
java.lang.reflect is now mostly empty. We've carved out the classes that have
to do with the VM and put them into the VM interface.

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/* ReflectPermission.java - named permission for reflaction
Copyright (C) 2000, 2001, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
import java.security.BasicPermission;
/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
* "The Java Language Specification", ISBN 0-201-63451-1
* plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
*/
/**
* This class implements permissions for reflection. This is a named
* permission, and the only defined name is suppressAccessChecks, which
* allows suppression of normal Java objects when using reflection.
*
* <table>
* <tr>
* <th>Permission Target Name</th>
* <th>What Permission Allows</th>
* <th>Risk of Allowing Permission</th>
* </tr>
* <tr>
* <td><code>suppressAccessChecks</code></td>
* <td>Ability to access fields, invoke methods, and construct objects
* via reflection, including non-public members in contexts where
* such access is not legal at compile-time.</td>
* <td>This is dangerous. It exposes possibly confidential information,
* and malicious code could interfere with the internals of the Virtual
* Machine by corrupting private data.</td>
* </tr>
* </table>
*
* @author Tom Tromey (tromey@redhat.com)
* @author Eric Blake (ebb9@email.byu.edu)
* @since 1.2
* @status updated to 1.4
*/
public final class ReflectPermission
extends BasicPermission
{
/**
* Compatible with JDK 1.2.
*/
private static final long serialVersionUID = 7412737110241507485L;
/**
* Construct a ReflectPermission with the given name.
*
* @param name The permission name
*/
public ReflectPermission(String name)
{
super(name);
}
/**
* Construct a ReflectPermission with the given name.
*
* @param name The permission name
* @param actions The actions; this is ignored and should be null
*/
public ReflectPermission(String name, String actions)
{
super(name, actions);
}
}

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TODO for java.lang.reflect Java side
- more tests!
- Java 2 support (waiting on java.lang Java 2 support)

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/* Type.java - Superinterface for all types.
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* Represents any <code>Type</code> within the Java programming
* language. This may be a primitive type (e.g. <code>int</code>,
* an array type (e.g. <code>double[]>/code>), a raw type
* (e.g. <code>Calendar</code>), a parameterized type
* (e.g. <code>List&lt;Boolean&gt;</code>, or a type
* variable (e.g. <code>T extends String</code>).
*
* @author Tom Tromey (tromey@redhat.com)
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
public interface Type
{
}

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/* UndeclaredThrowableException.java -- wraps an undeclared checked exception
thrown by a Proxy invocation handler
Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* This exception class is thrown by a {@link Proxy} instance if
* the {@link InvocationHandler#invoke(Object, Method, Object[]) invoke}
* method of that instance's InvocationHandler attempts to throw an
* exception that not declared by the throws clauses of all of the
* interface methods that the proxy instance is implementing.
*
* <p>When thrown by Proxy, this class will always wrap a checked
* exception, never {@link Error} or {@link RuntimeException},
* which are unchecked.
*
* @author Eric Blake (ebb9@email.byu.edu)
* @see Proxy
* @see InvocationHandler
* @since 1.3
* @status updated to 1.4
*/
public class UndeclaredThrowableException extends RuntimeException
{
/**
* Compatible with JDK 1.3+.
*/
private static final long serialVersionUID = 330127114055056639L;
/**
* The immutable exception that this wraps. This field is redundant
* with {@link Throwable#cause}, but is necessary for serial compatibility.
*
* @serial the chained exception
*/
private final Throwable undeclaredThrowable;
/**
* Wraps the given checked exception into a RuntimeException, with no
* detail message. {@link Throwable#initCause(Throwable)} will fail
* on this instance.
*
* @param cause the undeclared throwable that caused this exception,
* may be null
*/
public UndeclaredThrowableException(Throwable cause)
{
this(cause, null);
}
/**
* Wraps the given checked exception into a RuntimeException, with the
* specified detail message. {@link Throwable#initCause(Throwable)} will
* fail on this instance.
*
* @param cause the undeclared throwable that caused this exception,
* may be null
* @param message the message, may be null
*/
public UndeclaredThrowableException(Throwable cause, String message)
{
super(message, cause);
undeclaredThrowable = cause;
}
/**
* Returns the cause of this exception. If this exception was created
* by a {@link Proxy} instance, it will be a non-null checked
* exception. This method pre-dates exception chaining, and is now
* simply a longer way to call <code>getCause()</code>.
*
* @return the cause of this exception, may be null
* @see #getCause()
*/
public Throwable getUndeclaredThrowable()
{
return undeclaredThrowable;
}
/**
* Returns the cause of this exception. If this exception was created
* by a {@link Proxy} instance, it will be a non-null checked
* exception.
*
* @return the cause of this exception, may be null
* @since 1.4
*/
public Throwable getCause()
{
return undeclaredThrowable;
}
}

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/* WildcardType.java -- A wildcard type expression e.g. ? extends String
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package java.lang.reflect;
/**
* Represents a wildcard type expression, where the type variable
* is unnamed. The simplest example of this is <code>?</code>,
* which represents any unbounded type. Another example is
* <code>? extends Number</code>, which specifies any type
* which is a subclass of <code>Number</code> (<code>Number</code>
* is the upper bound).
* </p>
* <p>
* <code>? super String</code> gives the type a less common lower bound,
* which means that the type must be either a <code>String</code> or one
* of its superclasses. This can be useful in working with collections.
* You may want a method to add instances of a class to a collection
* with a more generic type (e.g. adding <code>String</code>s to
* a list of <code>Object</code>s), but don't want to allow users
* to pass in a collection with a more specific type.
* </p>
*
* @author Tom Tromey (tromey@redhat.com)
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
public interface WildcardType extends Type
{
/**
* <p>
* Returns an array of <code>Type</code>s, which specify the
* lower bounds of this type. The default lower bound is
* <code>null</code>, which causes this method to return an
* empty array.
* </p>
* <p>
* In generating the array of <code>Type</code>s, each
* <code>ParameterizedType</code> or <code>TypeVariable</code> is
* created, (see the documentation for these classes for details of this
* process), if necessary, while all other types are simply
* resolved.
* </p>
*
* @return an array of <code>Type</code> objects, representing
* the wildcard type's lower bounds.
* @throws TypeNotPresentException if any of the types referred to by
* the lower bounds of this type do not actually exist.
* @throws MalformedParameterizedTypeException if any of the types
* refer to a type which can not be instantiated.
*/
Type[] getLowerBounds();
/**
* <p>
* Returns an array of <code>Type</code>s, which specify the
* upper bounds of this type. The default upper bound is
* <code>Object</code>, which causes this method to return an
* array, containing just the <code>Type</code> instance for
* <code>Object</code>.
* </p>
* <p>
* In generating the array of <code>Type</code>s, each
* <code>ParameterizedType</code> or <code>TypeVariable</code> is
* created, (see the documentation for these classes for details of this
* process), if necessary, while all other types are simply
* resolved.
* </p>
*
* @return an array of <code>Type</code> objects, representing
* the wildcard type's upper bounds.
* @throws TypeNotPresentException if any of the types referred to by
* the upper bounds of this type do not actually exist.
* @throws MalformedParameterizedTypeException if any of the types
* refer to a type which can not be instantiated.
*/
Type[] getUpperBounds();
}

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<!-- package.html - describes classes in java.lang.reflect package.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. -->
<html>
<head><title>GNU Classpath - java.lang.reflect</title></head>
<body>
<p>Runtime inspection and manipulation of object classes, methods, arguments
and fields.</p>
</body>
</html>