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8238358: Implementation of JEP 371: Hidden Classes

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Co-authored-by: Lois Foltan <lois.foltan@oracle.com>
Co-authored-by: David Holmes <david.holmes@oracle.com>
Co-authored-by: Harold Seigel <harold.seigel@oracle.com>
Co-authored-by: Serguei Spitsyn <serguei.spitsyn@oracle.com>
Co-authored-by: Alex Buckley <alex.buckley@oracle.com>
Co-authored-by: Jamsheed Mohammed C M <jamsheed.c.m@oracle.com>
Co-authored-by: Jan Lahoda <jan.lahoda@oracle.com>
Co-authored-by: Amy Lu <amy.lu@oracle.com>
Reviewed-by: alanb, cjplummer, coleenp, dholmes, dlong, forax, jlahoda, psandoz, plevart, sspitsyn, vromero
This commit is contained in:
Mandy Chung 2020-04-21 06:55:38 -07:00
parent 642041adbc
commit 7cc1371059
198 changed files with 9526 additions and 1575 deletions
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13
src/java.base/share/classes/java/lang/StringConcatHelper.java
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@ -28,6 +28,10 @@ package java.lang;
import jdk.internal.misc.Unsafe;
import jdk.internal.vm.annotation.ForceInline;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
/**
* Helper for string concatenation. These methods are mostly looked up with private lookups
* from {@link java.lang.invoke.StringConcatFactory}, and used in {@link java.lang.invoke.MethodHandle}
@ -466,4 +470,13 @@ final class StringConcatHelper {
return String.COMPACT_STRINGS ? LATIN1 : UTF16;
}
static MethodHandle lookupStatic(String name, MethodType methodType) {
try {
return MethodHandles.lookup().findStatic(StringConcatHelper.class, name, methodType);
} catch (NoSuchMethodException|IllegalAccessException e) {
throw new AssertionError(e);
}
}
}