Pass a pointer to JNI_GetCreatedJavaVMs() instead of null

[Deven You]

Hi All,

There is a potential problem in 
jdk/src/share/native/com/sun/java/util/jar/pack/jni.cpp.

(Maybe it is not suitable for posting this on core-lib, anyone could 
tell me which mailing list is prefer?)

L85:

JNI_GetCreatedJavaVMs(&vm, 1, null) in which the 3rd parameter is a 
pointer to an integer. See[1], the latest JNI Invocation API spec does 
not say anything about allowing a null as the last parameter.

I think it is more reasonable to change null to an integer variable. 
Here is my fix[2]

[1] 
http://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/invocation.html#wp633

[2] http://cr.openjdk.java.net/~littlee/ojdk-432/webrev.00/ 
<http://cr.openjdk.java.net/%7Elittlee/ojdk-432/webrev.00/>


Please review this mail!

Thanks a lot!

-- 
Best Regards,

Deven