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8230501: Class data support for hidden classes

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Reviewed-by: jvernee, psandoz, chegar
This commit is contained in:
Mandy Chung 2020-12-01 00:24:40 +00:00
parent 11dad148ff
commit 4356469a31
17 changed files with 946 additions and 139 deletions
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8
src/java.base/share/classes/java/lang/invoke/MethodHandleNatives.java
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@ -35,6 +35,7 @@ import java.lang.reflect.Field;
import static java.lang.invoke.MethodHandleNatives.Constants.*;
import static java.lang.invoke.MethodHandleStatics.TRACE_METHOD_LINKAGE;
import static java.lang.invoke.MethodHandleStatics.UNSAFE;
import static java.lang.invoke.MethodHandles.Lookup.IMPL_LOOKUP;
/**
@ -683,10 +684,13 @@ class MethodHandleNatives {
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
* Returns the class data set by the VM in the Class::classData field.
*
* This is also invoked by LambdaForms as it cannot use condy via
* MethodHandles.classData due to bootstrapping issue.
*/
static Object classData(Class<?> c) {
UNSAFE.ensureClassInitialized(c);
return JLA.classData(c);
}
}