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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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20
src/java.base/share/classes/java/lang/invoke/MethodHandleNatives.java
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@ -25,6 +25,8 @@
package java.lang.invoke;
import jdk.internal.access.JavaLangAccess;
import jdk.internal.access.SharedSecrets;
import jdk.internal.ref.CleanerFactory;
import sun.invoke.util.Wrapper;
@ -137,6 +139,15 @@ class MethodHandleNatives {
REF_newInvokeSpecial = 8,
REF_invokeInterface = 9,
REF_LIMIT = 10;
/**
* Flags for Lookup.ClassOptions
*/
static final int
NESTMATE_CLASS = 0x00000001,
HIDDEN_CLASS = 0x00000002,
STRONG_LOADER_LINK = 0x00000004,
ACCESS_VM_ANNOTATIONS = 0x00000008;
}
static boolean refKindIsValid(int refKind) {
@ -659,4 +670,13 @@ class MethodHandleNatives {
return (definingClass.isAssignableFrom(symbolicRefClass) || // Msym overrides Mdef
symbolicRefClass.isInterface()); // Mdef implements Msym
}
private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
/*
* A convenient method for LambdaForms to get the class data of a given class.
* LambdaForms cannot use condy via MethodHandles.classData
*/
static Object classData(Class<?> c) {
return JLA.classData(c);
}
}