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8221430: StringBuffer(CharSequence) constructor truncates when -XX:-CompactStrings specified

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Co-authored-by: Andrew Leonard <andrew_m_leonard@uk.ibm.com>
Reviewed-by: igerasim, rriggs
This commit is contained in:
Ivan Gerasimov 2019-04-09 16:32:22 -07:00
parent 758f02e6cc
commit eebe346715
5 changed files with 83 additions and 19 deletions
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26
test/micro/org/openjdk/bench/java/lang/StringBuilders.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -42,6 +42,8 @@ public class StringBuilders {
private String[] str16p8p7;
private String[] str3p9p8;
private String[] str22p40p31;
private StringBuilder sbLatin1;
private StringBuilder sbUtf16;
@Setup
public void setup() {
@ -53,6 +55,8 @@ public class StringBuilders {
str16p8p7 = new String[]{"1234567890123456", "12345678", "1234567"};
str3p9p8 = new String[]{"123", "123456789", "12345678"};
str22p40p31 = new String[]{"1234567890123456789012", "1234567890123456789012345678901234567890", "1234567890123456789012345678901"};
sbLatin1 = new StringBuilder("Latin1 string");
sbUtf16 = new StringBuilder("UTF-\uFF11\uFF16 string");
}
/** StringBuilder wins over StringMaker. */
@ -256,4 +260,24 @@ public class StringBuilders {
result.append("stringelinglinglinglong");
return result.toString();
}
@Benchmark
public StringBuilder fromLatin1String() {
return new StringBuilder("Latin1 string");
}
@Benchmark
public StringBuilder fromUtf16String() {
return new StringBuilder("UTF-\uFF11\uFF16 string");
}
@Benchmark
public StringBuilder fromLatin1StringBuilder() {
return new StringBuilder(sbLatin1);
}
@Benchmark
public StringBuilder fromUtf16StringBuilder() {
return new StringBuilder(sbUtf16);
}
}