java.lang.NullPointerException
   at org.netbeans.libs.git.jgit.JGitMergeResult.getMergedCommits(JGitMergeResult.java:105)
   at org.netbeans.libs.git.jgit.JGitMergeResult.<init>(JGitMergeResult.java:72)
   at org.netbeans.libs.git.jgit.commands.MergeCommand.run(MergeCommand.java:92)
   at org.netbeans.libs.git.jgit.commands.GitCommand.execute(GitCommand.java:70)
   at org.netbeans.libs.git.jgit.JGitClient.merge(JGitClient.java:360)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:0)
   at java.lang.reflect.Method.invoke(Method.java:0)
   at org.netbeans.modules.git.client.GitClientInvocationHandler.invokeClientMethod(GitClientInvocationHandler.java:222)
   at org.netbeans.modules.git.client.GitClientInvocationHandler.access$400(GitClientInvocationHandler.java:65)
   at org.netbeans.modules.git.client.GitClientInvocationHandler$1.call(GitClientInvocationHandler.java:185)
   at org.netbeans.modules.versioning.indexingbridge.Bridge$1.call(Bridge.java:64)
   at org.netbeans.modules.parsing.api.indexing.IndexingManager.runProtected(IndexingManager.java:354)
   at org.netbeans.modules.versioning.indexingbridge.Bridge.runWithoutIndexing(Bridge.java:59)
   at org.netbeans.modules.versioning.util.IndexingBridge.runWithoutIndexing(IndexingBridge.java:139)
   at org.netbeans.modules.versioning.util.IndexingBridge.runWithoutIndexing(IndexingBridge.java:102)
   at org.netbeans.modules.git.client.GitClientInvocationHandler.invokeIntern(GitClientInvocationHandler.java:204)
   at org.netbeans.modules.git.client.GitClientInvocationHandler.invoke(GitClientInvocationHandler.java:161)
   at $Proxy16.merge(.java:0)
   at org.netbeans.modules.git.ui.merge.MergeRevisionAction$1.perform(MergeRevisionAction.java:113)
   at org.netbeans.modules.git.client.GitProgressSupport.performIntern(GitProgressSupport.java:101)
   at org.netbeans.modules.git.client.GitProgressSupport.run(GitProgressSupport.java:94)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:425)
   at org.netbeans.modules.git.client.GitProgressSupport.start(GitProgressSupport.java:87)
   at org.netbeans.modules.git.ui.merge.MergeRevisionAction.mergeRevision(MergeRevisionAction.java:247)
   at org.netbeans.modules.git.ui.repository.RepositoryBrowserPanel$BranchNode$4$1.run(RepositoryBrowserPanel.java:766)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)