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8270160: Remove redundant bounds check from AbstractStringBuilder.charAt()

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Reviewed-by: redestad
This commit is contained in:
Sergey Tsypanov 2021-08-02 12:48:35 +00:00 • committed by Claes Redestad
parent 6c4c48faea
commit 2536e4342e
2 changed files with 1 additions and 4 deletions
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3
src/java.base/share/classes/java/lang/AbstractStringBuilder.java
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@ -349,9 +349,8 @@ abstract class AbstractStringBuilder implements Appendable, CharSequence {
*/ */
@Override @Override
public char charAt(int index) { public char charAt(int index) {
checkIndex(index, count);
if (isLatin1()) { if (isLatin1()) {
return (char)(value[index] & 0xff); return StringLatin1.charAt(value, index);
} }
return StringUTF16.charAt(value, index); return StringUTF16.charAt(value, index);
} }

2
src/java.base/share/classes/java/lang/StringLatin1.java
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@ -27,11 +27,9 @@ package java.lang;
import java.util.Arrays; import java.util.Arrays;
import java.util.Locale; import java.util.Locale;
import java.util.Objects;
import java.util.Spliterator; import java.util.Spliterator;
import java.util.function.Consumer; import java.util.function.Consumer;
import java.util.function.IntConsumer; import java.util.function.IntConsumer;
import java.util.stream.IntStream;
import java.util.stream.Stream; import java.util.stream.Stream;
import java.util.stream.StreamSupport; import java.util.stream.StreamSupport;
import jdk.internal.util.ArraysSupport; import jdk.internal.util.ArraysSupport;