Binary-only data contained in regression test hotspot/test/runtime/7020373

Rémi Forax forax at
Mon Jul 11 05:36:22 PDT 2011

On 07/11/2011 01:19 PM, Pavel Tisnovsky wrote:
> Rémi Forax wrote:
>>   On 07/11/2011 11:54 AM, Pavel Tisnovsky wrote:
>>> Hi all,
>>> I realized, that one part of the regression test
>>> hotspot/test/runtime/7020373 contains binary-only data which IMHO
>>> prevent us to backport this test to OpenJDK6 (in fact, only one file of
>>> this test was backported at this moment, so this test always fails due
>>> to a missed file).
>>> The mentioned part of 7020373 test is a Java archive "testcase.jar"
>>> which contains just one file "OOMCrashClass4000_1.class" without
>>> corresponding source code.
>>> I presume that the file "OOMCrashClass4000_1.class" were not obtained by
>>> compiling regular Java source file, but using BCEL or similar tool
>>> instead. The problem is that the script/source code used for creating
>>> .class is not included in the test.
>>> Is it possible to include such script/source code to the OpenJDK7
>>> repository so the test could be fully backported to OpenJDK6, please?
>>> Thank you in advance,
>>> Pavel Tisnovsky
>> You can re-create it :)
>> ASM [1] (a BCEL like tool) has a nice tool called the ASMifier that
>> allows you to create a Java code from a class file:
>> |java -classpath "asm.jar;asm-util.jar"
>> org.objectweb.asm.util.ASMifierClassVisitor
>> org/domain/package/YourClass.class|
> Hi Rémi,
> yes, I know it is possible to re-create source from .class file, but
> there's (AFAIK) problem with licence text because .class file
> (suprisingly :-) does not contains such licence which allows us to
> re-engineer it :-)
> Pavel

I see.
I was thinking it was an engineering problem not a legal one.


>> Rémi
>> [1]

More information about the hotspot-runtime-dev mailing list