[mylyn-integrators] Retrieving Bugs from https://bugzilla.redhat.com

["Jerry Kuch" <jerrykuch@xxxxxxxxx>]

Hi, all...

Can anybody give me a hint as to why the following doesn't work?  It goes away for a long period of time before coming back with:

java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOf(Arrays.java:2882)
    at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
    at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390)
    at java.lang.StringBuffer.append(StringBuffer.java:224)
    at org.eclipse.mylyn.internal.bugzilla.core.XmlCleaner.clean(XmlCleaner.java:53)
    at org.eclipse.mylyn.internal.bugzilla.core.AbstractReportFactory.collectResults(AbstractReportFactory.java:83)
    at org.eclipse.mylyn.internal.bugzilla.core.RepositoryConfigurationFactory.getConfiguration(RepositoryConfigurationFactory.java:35)
    at org.eclipse.mylyn.internal.bugzilla.core.BugzillaClient.getRepositoryConfiguration(BugzillaClient.java:593)
    at org.eclipse.mylyn.internal.bugzilla.core.BugzillaCorePlugin.getRepositoryConfiguration(BugzillaCorePlugin.java:140)
    at org.eclipse.mylyn.internal.bugzilla.core.BugzillaClientManager.getClient(BugzillaClientManager.java:46)
    at org.eclipse.mylyn.internal.bugzilla.core.BugzillaTaskDataHandler.getTaskData(BugzillaTaskDataHandler.java:191)
    at org.eclipse.mylyn.internal.bugzilla.core.BugzillaRepositoryConnector.getTaskData(BugzillaRepositoryConnector.java:480)
    at com.sourcelabs.camel.processor.contentenricher.bugs.bugzilla.repositoryutil.BugzillaPoCTest.test_PoC_Bugzilla_fetch_single_bug_on_redhat(BugzillaPoCTest.java:212)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:40)

The code apes the Bugzilla headless Mylyn API sample pretty closely and actually works without incident against a few other repositories like the Bugzilla landfill 3.0 test repository and the bugs.eclipse.org 2.18 test repository.  It's only attempting to retrieve a single bug so it puzzles me that something is going memory crazy down within...

    public void test_PoC_Bugzilla_fetch_single_bug_on_redhat() throws Exception
    {
        final String URL = "" href="https://bugzilla.redhat.com">https://bugzilla.redhat.com";
        final String BUG_ID = "6740";

        TaskRepository repository =
                        new TaskRepository(BugzillaCorePlugin.CONNECTOR_KIND,
                                           URL);

        AuthenticationCredentials credentials =
                        new AuthenticationCredentials("jerrykuch@xxxxxxxxx",
                                                      "wawawa");
        repository.setCredentials(AuthenticationType.REPOSITORY,
                                  credentials,
                                  false);

        BugzillaRepositoryConnector connector =
                                            new BugzillaRepositoryConnector();

        try
        {
            // Get a bug report from Bugzilla...
            TaskData taskData = connector.getTaskData(repository, BUG_ID, null);

            // Get the information on the bug report...
            ITaskMapping taskMapping = connector.getTaskMapping(taskData);

            // Is the task information what we expected it to be?
            System.out.println("Summary:     " + taskMapping.getSummary());

            System.out.println("Priority:    " + taskMapping.getPriority());

            // Try to access bug report data via attributes...
            TaskAttribute descriptionAttribute =
                 taskData.getRoot().getMappedAttribute(TaskAttribute.COMPONENT);
            System.out.println("Component:   "
                                + descriptionAttribute.getValue());

            // ...or by Bugzilla keys
            TaskAttribute severityAttribute =
                                taskData.getRoot().getAttribute(
                                        BugzillaAttribute.BUG_SEVERITY.getKey()
                                                               );
            System.out.println("Severity:    " + severityAttribute.getValue());
        }
        catch (CoreException e)
        {
            throw new Exception(e);
        }
        finally
        {
            /* This is worth remembering, but really shouldn't be done here
               since it shuts down a common global piece of Mylyn infrastructure
               which will make subsequent tests fail!

               CommonsNetPlugin.getExecutorService().shutdown();
            */
            assertTrue(true);   // Don't complain about empty finally!
        }
    }