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https://issues.apache.org/jira/browse/DERBY-3445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12575987#action_12575987
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Daniel John Debrunner commented on DERBY-3445:
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There's a minor issue in that if the network server is run as a separate
process then I don't think it can write out the coverage information due to the
default policy file.
I see these errors now that by default spawning a process network server prints
out any stderr.
Not sure what a solution is, maybe the server should remove the security
manager when it shuts down?
I'm seeing exceptions like this:
[junit] java.security.AccessControlException: Access denied
(java.io.FilePermission coverage.ec read)
[junit] at
java.security.AccessController.checkPermission(AccessController.java:104)
[junit] at
java.lang.SecurityManager.checkPermission(SecurityManager.java:547)
[junit] at java.lang.SecurityManager.checkRead(SecurityManager.java:886)
[junit] at java.io.File.exists(File.java:726)
[junit] at
com.vladium.emma.data.DataFactory.persist(DataFactory.java:525)
[junit] at
com.vladium.emma.data.DataFactory.persist(DataFactory.java:86)
[junit] at
com.vladium.emma.rt.RTCoverageDataPersister.dumpCoverageData(RTCoverageDataPersister.java:54)
[junit] at com.vladium.emma.rt.RTExitHook.run(RTExitHook.java:32)
[junit] at java.lang.Thread.run(Thread.java:801)
[junit] Exception in thread "EMMA shutdown handler thread"
java.lang.RuntimeException: EMMA failed to dump coverage data:
java.security.AccessControlException: Access denied (java.io.FilePermission
coverage.ec read)
[junit] at
com.vladium.emma.rt.RTCoverageDataPersister.dumpCoverageData(RTCoverageDataPersister.java:71)
[junit] at com.vladium.emma.rt.RTExitHook.run(RTExitHook.java:32)
[junit] at java.lang.Thread.run(Thread.java:801)
> Make it easier to use the EMMA tool to measure the code coverage of the Derby
> testing
> -------------------------------------------------------------------------------------
>
> Key: DERBY-3445
> URL: https://issues.apache.org/jira/browse/DERBY-3445
> Project: Derby
> Issue Type: Improvement
> Components: Build tools
> Reporter: Vemund Østgaard
> Assignee: Vemund Østgaard
> Attachments: 3445-emma-clean-fix-diff, 3445-general-diff,
> 3445-general-diffv2, 3445-singletest-codeline-jars-diff,
> 3445-singletest-diff, 3445-SysinfoLocaleTest-diff, 3445-testspecific-diff,
> 3445-testspecific-diffv2
>
>
> It is a bit tricky to use EMMA to measure code coverage for the derby testing.
> Modifications must be made to the source both to avoid problems with the
> SecurityManager and individual tests. It would be good if these modifcations
> could be done once and for all so that it was easier for anyone to run the
> tests with EMMA.
> It would also be good to have ant tasks that would make it even easier to run
> the tests with EMMA.
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