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StringBuffer.java (substring): Don't set `shared' on small Strings, even if buffer is already shared.

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* java/lang/StringBuffer.java (substring): Don't set `shared' on
	small Strings, even if buffer is already shared.

From-SVN: r71726
This commit is contained in:
Bryce McKinlay 2003-09-24 06:19:24 +00:00 • committed by Bryce McKinlay
parent 4112c7bde0
commit afa1ee5e6f
2 changed files with 10 additions and 4 deletions
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9
libjava/java/lang/StringBuffer.java
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@ -564,11 +564,12 @@ public final class StringBuffer implements Serializable, CharSequence
throw new StringIndexOutOfBoundsException();
if (len == 0)
return "";
// Share unless substring is smaller than 1/4 of the buffer.
if ((len << 2) >= value.length)
shared = true;
// Don't copy unless substring is smaller than 1/4 of the buffer.
boolean share_buffer = ((len << 2) >= value.length);
if (share_buffer)
this.shared = true;
// Package constructor avoids an array copy.
return new String(value, beginIndex, len, shared);
return new String(value, beginIndex, len, share_buffer);
}
/**