8026025: JVM_GetCallerClass allows Reflection.getCallerClass(int depth) to use
Reviewed-by: alanb, dholmes, twisti
Contributed-by: mandy.chung@oracle.com
--- a/hotspot/src/share/vm/prims/jvm.cpp Mon Oct 07 12:20:28 2013 -0400
+++ b/hotspot/src/share/vm/prims/jvm.cpp Tue Oct 08 02:56:06 2013 -0400
@@ -668,13 +668,12 @@
JVM_ENTRY(jclass, JVM_GetCallerClass(JNIEnv* env, int depth))
JVMWrapper("JVM_GetCallerClass");
- // Pre-JDK 8 and early builds of JDK 8 don't have a CallerSensitive annotation.
- if (SystemDictionary::reflect_CallerSensitive_klass() == NULL) {
+ // Pre-JDK 8 and early builds of JDK 8 don't have a CallerSensitive annotation; or
+ // sun.reflect.Reflection.getCallerClass with a depth parameter is provided
+ // temporarily for existing code to use until a replacement API is defined.
+ if (SystemDictionary::reflect_CallerSensitive_klass() == NULL || depth != JVM_CALLER_DEPTH) {
Klass* k = thread->security_get_caller_class(depth);
return (k == NULL) ? NULL : (jclass) JNIHandles::make_local(env, k->java_mirror());
- } else {
- // Basic handshaking with Java_sun_reflect_Reflection_getCallerClass
- assert(depth == -1, "wrong handshake depth");
}
// Getting the class of the caller frame.
--- a/hotspot/src/share/vm/prims/jvm.h Mon Oct 07 12:20:28 2013 -0400
+++ b/hotspot/src/share/vm/prims/jvm.h Tue Oct 08 02:56:06 2013 -0400
@@ -374,6 +374,9 @@
/*
* java.lang.Class and java.lang.ClassLoader
*/
+
+#define JVM_CALLER_DEPTH -1
+
/*
* Returns the class in which the code invoking the native method
* belongs.