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6633613: (str) StringCoding optimizations to avoid unnecessary array copies with Charset arg

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Reviewed-by: iris
This commit is contained in:
Martin Buchholz 2008-03-09 21:56:42 -07:00
parent 14120d1c34
commit f7ce4bc4ab
1 changed files with 2 additions and 4 deletions
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6
jdk/src/share/classes/java/lang/StringCoding.java
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@ -194,8 +194,7 @@ class StringCoding {
static char[] decode(Charset cs, byte[] ba, int off, int len) {
StringDecoder sd = new StringDecoder(cs, cs.name());
byte[] b = Arrays.copyOf(ba, ba.length);
return sd.decode(b, off, len);
return sd.decode(Arrays.copyOfRange(ba, off, off + len), 0, len);
}
static char[] decode(byte[] ba, int off, int len) {
@ -293,8 +292,7 @@ class StringCoding {
static byte[] encode(Charset cs, char[] ca, int off, int len) {
StringEncoder se = new StringEncoder(cs, cs.name());
char[] c = Arrays.copyOf(ca, ca.length);
return se.encode(c, off, len);
return se.encode(Arrays.copyOfRange(ca, off, off + len), 0, len);
}
static byte[] encode(char[] ca, int off, int len) {