Roger,

Thanks for the reply. I agree completely with your explanation.

I understand there are multiple efforts running to address this issue, so I'll leave it to yourselves to work out the details, but as far as a point fix, yours is good.

-Chris.

On 11/19/2013 01:09 AM, roger riggs wrote:
Hi Chris,

Here's an example from a failing test run:


-J-Dtest.classes=/export/jdk8-tl-test/JTwork/classes/0/sun/management/jmxremote/bootstrap
\\

-J-Dtest.class.path=/export/jdk8-tl-test/JTwork/classes/0/sun/management/jmxremote/bootstrap:/export/jdk8-tl-test/JTwork/classes/0/lib/testlibrary


Note that test.classes does not include the @library path lib/testlibrary.

So if lib/testlibrary is supposed to be available to the spawned process
then using test.class.path is needed.

Including @build will compile the library classes into /lib/testlibrary
but that's not enough.

It happens that if the classes are not already compiled in
lib/testlibrary (and there is no @build)
then the files will be compiled on demand by javac into the test.classes
directory.
And in that case they are 'accidentally' available to the spawned
process but by using @library
that does not seem to be the intention.

The test fails if the lib/testlibrary classes have been compiled by a
previous test.

Yes, there are other tests using jdk.testlibrary that do not have the
@build;
there maybe some tests that fail to pass the full test.class.path.
I'll recheck , but that's out of scope for the particular issue.

Thanks, Roger





On 11/18/2013 5:25 PM, Chris Hegarty wrote:
On 18 Nov 2013, at 21:59, roger riggs <[email protected]> wrote:

Please review this fix to improve the reliability of the
jmxRemote/LocalManagementTest and CustomLauncherTest. The solution
may apply to other tests that fail with ClassNotFound.

The tests did not include the jdk.testlibrary in the classpath when
it spawns a new process. The failure mode is dependent on the order
that tests had been run.

Also note that if a test depends on classes in the jdk.testlibrary it
should include @build <classname> to ensure they are built in the
@library directory

Webrev:
http://cr.openjdk.java.net/~rriggs/webrev-localmanagement-8028141/
I've come across some of these before. The changes to the tags make
sense.

About the change to the property, test.class.path, I thought
test.classes was right. Is this different from what other tests are
doing?

-Chris.

Thanks, Roger



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