RFR: 8019799: api/java_util/jar/Pack200 test failed with compactX profiles. (EZ)

Kumar Srinivasan kumar.x.srinivasan at oracle.com
Thu Jul 11 14:11:35 UTC 2013

Hi David,

thanks for reviewing this!

> On 10/07/2013 6:25 AM, Kumar Srinivasan wrote:
>> Hi,
>> We had earlier added a fail over to the java implementation, for 
>> reference:
>> http://hg.openjdk.java.net/jdk8/jdk8/jdk/rev/1432a6247ac9
>> The first time the unpacker is called  an UnsatisfiedLinkError will be
>> thrown, but
>> subsequent invocations in the same JDK/VM instance, a 
>> NoClassDefFoundError
>> will be thrown. This error also needs to be caught and handled.
> Ugghhh. Presumably we need a test update to catch this?

Yes it is tedious to create this test, the test needs to make a copy of 
the JDK under
test and modify it to remove the libunpack.so and call unpack repeatedly.

But since we already have a JCK test,  I marked the bug "noreg-jck" 
since the jck
test catches this scenario.

>> Here is the modified webrev:
>> http://cr.openjdk.java.net/~ksrini/8019799/webrev.0/
> Looks okay - but no test.
> It would be better/more-efficient if the presence of the native 
> implementation could be detected once during class initialization. But 
> I won't try to force that on you. :)

that is what I started with initially, later Bob and I agreed that 
testing for libunpack.so
will need to be performed by SE always,  where  libunpack.so is sure to 



> Thanks,
> David
>> Thanks
>> Kumar

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