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8201179: Regression due loading java.nio.charset.StandardCharsets during bootstrap

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Reviewed-by: sherman, martin
This commit is contained in:
Claes Redestad 2018-04-10 16:16:34 +02:00
parent 370977cf4f
commit c40af49970
7 changed files with 33 additions and 16 deletions
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8
src/java.base/share/classes/java/lang/StringCoding.java
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@ -42,7 +42,6 @@ import jdk.internal.HotSpotIntrinsicCandidate;
import sun.nio.cs.HistoricallyNamedCharset;
import sun.nio.cs.ArrayDecoder;
import sun.nio.cs.ArrayEncoder;
import sun.nio.cs.StandardCharsets;
import static java.lang.String.LATIN1;
import static java.lang.String.UTF16;
@ -52,9 +51,6 @@ import static java.lang.Character.highSurrogate;
import static java.lang.Character.lowSurrogate;
import static java.lang.Character.isSupplementaryCodePoint;
import static java.lang.StringUTF16.putChar;
import static java.nio.charset.StandardCharsets.ISO_8859_1;
import static java.nio.charset.StandardCharsets.US_ASCII;
import static java.nio.charset.StandardCharsets.UTF_8;
/**
* Utility class for string encoding and decoding.
@ -70,6 +66,10 @@ class StringCoding {
private static final ThreadLocal<SoftReference<StringEncoder>> encoder =
new ThreadLocal<>();
private static final Charset ISO_8859_1 = sun.nio.cs.ISO_8859_1.INSTANCE;
private static final Charset US_ASCII = sun.nio.cs.US_ASCII.INSTANCE;
private static final Charset UTF_8 = sun.nio.cs.UTF_8.INSTANCE;
private static <T> T deref(ThreadLocal<SoftReference<T>> tl) {
SoftReference<T> sr = tl.get();
if (sr == null)