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6924259: Remove offset and count fields from java.lang.String

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Removes the use of shared character array buffers by String along with the two fields needed to support the use of shared buffers.

Reviewed-by: alanb, mduigou, forax, briangoetz
This commit is contained in:
Brian Doherty 2012-05-17 10:06:19 -07:00 • committed by Mike Duigou
parent 4747e218b3
commit f55750d05a
4 changed files with 237 additions and 291 deletions
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2
jdk/src/share/classes/java/lang/Integer.java
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@ -381,7 +381,7 @@ public final class Integer extends Number implements Comparable<Integer> {
int size = (i < 0) ? stringSize(-i) + 1 : stringSize(i);
char[] buf = new char[size];
getChars(i, size, buf);
return new String(0, size, buf);
return new String(buf, true);
}
/**

2
jdk/src/share/classes/java/lang/Long.java
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@ -373,7 +373,7 @@ public final class Long extends Number implements Comparable<Long> {
int size = (i < 0) ? stringSize(-i) + 1 : stringSize(i);
char[] buf = new char[size];
getChars(i, size, buf);
return new String(0, size, buf);
return new String(buf, true);
}
/**

522
jdk/src/share/classes/java/lang/String.java
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2
jdk/src/share/classes/java/lang/StringCoding.java
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@ -250,6 +250,7 @@ class StringCoding {
static char[] decode(byte[] ba, int off, int len) {
String csn = Charset.defaultCharset().name();
try {
// use charset name decode() variant which provides caching.
return decode(csn, ba, off, len);
} catch (UnsupportedEncodingException x) {
warnUnsupportedCharset(csn);
@ -382,6 +383,7 @@ class StringCoding {
static byte[] encode(char[] ca, int off, int len) {
String csn = Charset.defaultCharset().name();
try {
// use charset name encode() variant which provides caching.
return encode(csn, ca, off, len);
} catch (UnsupportedEncodingException x) {
warnUnsupportedCharset(csn);