[9] RFR 8150850: [JVMCI] NPE when executing HotSpotConstantReflectionProvider.readStableFieldValue

[Konstantin Shefov]

Hello

Please review a bug fix in JVMCI 
jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider::readStableFieldValue method. 


When one executes 
HotSpotConstantReflectionProvider::readStableFieldValue method for an 
instance field and JavaConstant.NULL_POINTER as a receiver, it throws an 
NPE. However, the javadoc says it should return null.

E.g. when we execute method 
HotSpotConstantReflectionProvider::readFieldValue for an instance field 
and JavaConstant.NULL_POINTER as a receiver, we get null as expected.

Additional check should be added for null as the first argument.

Bug: https://bugs.openjdk.java.net/browse/JDK-8150850
Webrev: http://cr.openjdk.java.net/~kshefov/8150850/webrev.00

Thanks
-Konstantin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/attachments/20160314/9fec6d5a/attachment.html>