Jira cannot complete index operation after install GreenHopper 6.1.4.2

2013-03-15 13:52:18,274 IssueIndexer:thread-4 INFO admin 831x275205x1 owizbf 10.1.20.84 /secure/admin/jira/IndexReIndex.jspa [action.admin.index.IndexAdminImpl] Re-indexing is 47% complete. Current index: Issue
2013-03-15 13:52:18,557 JiraTaskExectionThread-5 ERROR admin 831x275205x1 owizbf 10.1.20.84 /secure/admin/jira/IndexReIndex.jspa [jira.util.index.CompositeIndexLifecycleManager] Reindex All FAILED. Indexer: DefaultIndexManager: paths: [/jira/caches/indexes/comments, /jira/caches/indexes/issues, /jira/caches/indexes/changes]
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
at com.atlassian.jira.index.FutureResult.await(FutureResult.java:35)
at com.atlassian.jira.index.CompositeResultBuilder$CompositeResult.await(CompositeResultBuilder.java:82)
at com.atlassian.jira.issue.index.DefaultIndexManager.doIndexIssuesInBatchMode(DefaultIndexManager.java:855)
at com.atlassian.jira.issue.index.DefaultIndexManager.doStopTheWorldReindex(DefaultIndexManager.java:825)
at com.atlassian.jira.issue.index.DefaultIndexManager.reIndexAll(DefaultIndexManager.java:335)
at com.atlassian.jira.issue.index.DefaultIndexManager.reIndexAll(DefaultIndexManager.java:301) <+3>
at java.lang.reflect.Method.invoke(Unknown Source)
at com.atlassian.util.profiling.object.ObjectProfiler.profiledInvoke(ObjectProfiler.java:81)
at com.atlassian.jira.config.component.SwitchingInvocationHandler.invoke(SwitchingInvocationHandler.java:28)
at $Proxy160.reIndexAll(Unknown Source)
at com.atlassian.jira.util.index.CompositeIndexLifecycleManager.reIndexAll(CompositeIndexLifecycleManager.java:54)
at com.atlassian.jira.web.action.admin.index.ReIndexAsyncIndexerCommand.doReindex(ReIndexAsyncIndexerCommand.java:28)
at com.atlassian.jira.web.action.admin.index.AbstractAsyncIndexerCommand.call(AbstractAsyncIndexerCommand.java:54)
at com.atlassian.jira.web.action.admin.index.ReIndexAsyncIndexerCommand.call(ReIndexAsyncIndexerCommand.java:16)
at com.atlassian.jira.web.action.admin.index.AbstractAsyncIndexerCommand.call(AbstractAsyncIndexerCommand.java:23)
at com.atlassian.jira.task.TaskManagerImpl$TaskCallableDecorator.call(TaskManagerImpl.java:366)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at com.atlassian.multitenant.impl.DefaultMultiTenantManager.runForTenant(DefaultMultiTenantManager.java:61)
at com.atlassian.multitenant.juc.MultiTenantExecutors$WrappedRunnable.run(MultiTenantExecutors.java:160)
at com.atlassian.jira.task.ForkedThreadExecutor$ForkedRunnableDecorator.run(ForkedThreadExecutor.java:249)
at java.lang.Thread.run(Unknown Source)
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at com.atlassian.jira.index.FutureResult.await(FutureResult.java:31)
... 27 more
Caused by: java.lang.NullPointerException
at com.atlassian.greenhopper.customfield.sprint.SprintCFType.getValueFromIssue(SprintCFType.java:235)
at com.atlassian.greenhopper.customfield.sprint.SprintCFType.getValueFromIssue(SprintCFType.java:42)
at com.atlassian.jira.issue.fields.CustomFieldImpl.getValue(CustomFieldImpl.java:384)
at com.atlassian.greenhopper.customfield.sprint.SprintHistoryEntryFactory.getSprintChangeHistoryForIssue(SprintHistoryEntryFactory.java:133)
at com.atlassian.greenhopper.customfield.sprint.SprintHistoryEntryFactory.getSprintChangeHistory(SprintHistoryEntryFactory.java:53)
at com.atlassian.greenhopper.customfield.sprint.SprintCustomFieldIndexer.addDocumentFields(SprintCustomFieldIndexer.java:45)
at com.atlassian.greenhopper.customfield.sprint.SprintCustomFieldIndexer.addDocumentFieldsSearchable(SprintCustomFieldIndexer.java:30)
at com.atlassian.jira.issue.index.indexers.impl.AbstractCustomFieldIndexer.addIndex(AbstractCustomFieldIndexer.java:46)
at com.atlassian.jira.issue.index.IssueDocument.getDocument(IssueDocument.java:40)
at com.atlassian.jira.issue.index.DefaultIssueDocumentFactory.get(DefaultIssueDocumentFactory.java:15)
at com.atlassian.jira.issue.index.DefaultIssueDocumentFactory.get(DefaultIssueDocumentFactory.java:11)
at com.atlassian.jira.issue.index.DefaultIssueIndexer$IssueLockDocumentCreationStrategy$2.get(DefaultIssueIndexer.java:598)
at com.atlassian.jira.issue.index.DefaultIssueIndexer$IssueLockDocumentCreationStrategy$2.get(DefaultIssueIndexer.java:593)
at com.atlassian.util.concurrent.ManagedLocks$ManagedLockImpl.withLock(ManagedLocks.java:315)
at com.atlassian.jira.issue.index.DefaultIssueIndexer$IssueLockDocumentCreationStrategy.get(DefaultIssueIndexer.java:592)
at com.atlassian.jira.issue.index.DefaultIssueIndexer$IndexIssuesOperation.perform(DefaultIssueIndexer.java:446)
at com.atlassian.jira.issue.index.DefaultIssueIndexer$4$1.get(DefaultIssueIndexer.java:284)
at com.atlassian.jira.issue.index.DefaultIssueIndexer$4$1.get(DefaultIssueIndexer.java:280)
at com.atlassian.jira.index.SimpleIndexingStrategy.get(SimpleIndexingStrategy.java:9)
at com.atlassian.jira.index.SimpleIndexingStrategy.get(SimpleIndexingStrategy.java:5)
at com.atlassian.jira.index.MultiThreadedIndexingStrategy$1.call(MultiThreadedIndexingStrategy.java:38)
at com.atlassian.jira.index.MultiThreadedIndexingStrategy$1.call(MultiThreadedIndexingStrategy.java:35)
at com.atlassian.jira.util.concurrent.BoundedExecutor$2.call(BoundedExecutor.java:70)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at com.atlassian.multitenant.impl.DefaultMultiTenantManager.runForTenant(DefaultMultiTenantManager.java:61)
at com.atlassian.multitenant.juc.MultiTenantExecutors$WrappedRunnable.run(MultiTenantExecutors.java:160)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
... 1 more
2013-03-15 13:52:18,564 JiraTaskExectionThread-5 INFO admin 831x275205x1 owizbf 10.1.20.84 /secure/admin/jira/IndexReIndex.jspa [action.admin.index.IndexAdminImpl] Re-indexing finishe