Method.java (getExceptionTypes): Call getType() to initialize if exception_types is null.

* java/lang/reflect/Method.java (getExceptionTypes): Call getType() to
	initialize if exception_types is null.
	* java/lang/reflect/Constructor.java: Likewise.
	* java/lang/reflect/natConstructor.cc (getType): Initialize
	exception_types to an empty Object array.

From-SVN: r40730

libjava/java/lang/reflect/natConstructor.cc

@@ -34,6 +34,10 @@ java::lang::reflect::Constructor::getType ()
 			     declaringClass,
 			     &parameter_types,
 			     NULL);
+
+  // FIXME: for now we have no way to get exception information.
+  exception_types = 
+    (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$, NULL);
 }
 
 jobject