IV53597: CLASS.GETENCLOSINGMETHOD() AND CLASS.GETENCLOSINGCONSTRUCTOR() I NCORRECTLY CHECK PACKAGE ACCESS

APAR status

• Closed as program error.

Error description

• Error Message: Application incorrectly throws
  java.security.AccessControlException, and indicates that package
  access permission is denied.
  e.g.
  java.security.AccessControlException: Access denied
  ("java.lang.RuntimePermission" "accessClassInPackage.sun.pkg")
  .
  Stack Trace: java.security.AccessControlException: Access denied
  ("java.lang.RuntimePermission" "accessClassInPackage.sun.pkg")
   at
  java.security.AccessController.throwACE(AccessController.java:10
  0)
   at
  java.security.AccessController.checkPermission(AccessController.
  java:174)
   at
  java.lang.SecurityManager.checkPermission(SecurityManager.java:5
  51)
   at
  java.lang.SecurityManager.checkPackageAccess(SecurityManager.jav
  a:1609)
   at
  sun.reflect.misc.ReflectUtil.checkPackageAccess(ReflectUtil.java
  :188)
   at
  sun.reflect.misc.ReflectUtil.checkPackageAccess(ReflectUtil.java
  :164)
   at java.lang.Class.getEnclosingMethod(Class.java:2214)
   at
  sun.reflect.generics.scope.ClassScope.computeEnclosingScope(Clas
  sScope.java:50)
   at
  sun.reflect.generics.scope.AbstractScope.getEnclosingScope(Abstr
  actScope.java:74)
   at
  sun.reflect.generics.scope.AbstractScope.lookup(AbstractScope.ja
  va:90)
   at
  sun.reflect.generics.factory.CoreReflectionFactory.findTypeVaria
  ble(CoreReflectionFactory.java:110)
   at
  sun.reflect.generics.visitor.Reifier.visitTypeVariableSignature(
  Reifier.java:165)
   at
  sun.reflect.generics.tree.TypeVariableSignature.accept(TypeVaria
  bleSignature.java:43)
   at
  sun.reflect.generics.visitor.Reifier.reifyTypeArguments(Reifier.
  java:68)
   at
  sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Rei
  fier.java:138)
   at
  sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSig
  nature.java:49)
   at
  sun.reflect.generics.repository.ClassRepository.getSuperclass(Cl
  assRepository.java:84)
   at java.lang.Class.getGenericSuperclass(Class.java:2166)
  .
  

Local fix

Problem summary

• The problem was caused by unnecessary package access checks
  within java.lang.Class.getEnclosingMethod() and
  Class.getEnclosingConstructor().
  

Problem conclusion

• This APAR will be fixed in the following Java Releases:
     7    SR6 FP1   (7.0.6.1)
     5.0  SR16 FP5  (5.0.16.5)
     6    SR15 FP1  (6.0.15.1)
     6 R1 SR7 FP1   (6.1.7.1)
     7 R1 SR1       (7.1.1.0)
  .
  The JVM has been updated to remove unnecessary package access
  checks.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IV53596

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA 5 J9 COMMO

• Fixed component ID

  620500127

Applicable component levels

• R500 PSY

     UP