May 27, 2015 1:30:15 PM org.jenkinsci.plugins.pretestedintegration.PretestedIntegrationBuildWrapper setUp
SEVERE: [PREINT] - setUp()-IntegationFailedExeception
org.jenkinsci.plugins.pretestedintegration.exceptions.IntegationFailedExeception: Merge failure
at org.jenkinsci.plugins.pretestedintegration.scm.git.AccumulatedCommitStrategy.integrate(AccumulatedCommitStrategy.java:99)
at org.jenkinsci.plugins.pretestedintegration.AbstractSCMBridge.mergeChanges(AbstractSCMBridge.java:106)
at org.jenkinsci.plugins.pretestedintegration.AbstractSCMBridge.prepareWorkspace(AbstractSCMBridge.java:91)
at org.jenkinsci.plugins.pretestedintegration.PretestedIntegrationAction.initialise(PretestedIntegrationAction.java:75)
at org.jenkinsci.plugins.pretestedintegration.PretestedIntegrationBuildWrapper.setUp(PretestedIntegrationBuildWrapper.java:76)
at hudson.model.Build$BuildExecution.doRun(Build.java:156)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:537)
at hudson.model.Run.execute(Run.java:1744)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:374)
Caused by: java.lang.NullPointerException
at org.eclipse.jgit.lib.ObjectIdOwnerMap.get(ObjectIdOwnerMap.java:131)
at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:838)
at org.eclipse.jgit.revwalk.RevWalk.parseCommit(RevWalk.java:753)
at org.jenkinsci.plugins.pretestedintegration.scm.git.GetAllCommitsFromBranchCallback.invoke(GetAllCommitsFromBranchCallback.java:47)
at org.jenkinsci.plugins.pretestedintegration.scm.git.GetAllCommitsFromBranchCallback.invoke(GetAllCommitsFromBranchCallback.java:23)
at org.jenkinsci.plugins.gitclient.AbstractGitAPIImpl.withRepository(AbstractGitAPIImpl.java:28)
at org.jenkinsci.plugins.gitclient.JGitAPIImpl.withRepository(JGitAPIImpl.java:128)
at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:326)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:301)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:260)
at hudson.remoting.UserRequest.perform(UserRequest.java:121)
at hudson.remoting.UserRequest.perform(UserRequest.java:49)
at hudson.remoting.Request$2.run(Request.java:325)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at hudson.remoting.Engine$1$1.run(Engine.java:69)
at java.lang.Thread.run(Unknown Source)
at ......remote call to jenkins-slave2-32-builder(Native Method)
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1361)
at hudson.remoting.UserResponse.retrieve(UserRequest.java:221)
at hudson.remoting.Channel.call(Channel.java:753)
at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:179)
at com.sun.proxy.$Proxy64.withRepository(Unknown Source)
at org.jenkinsci.plugins.gitclient.RemoteGitImpl.withRepository(RemoteGitImpl.java:238)
at org.jenkinsci.plugins.pretestedintegration.scm.git.AccumulatedCommitStrategy.integrate(AccumulatedCommitStrategy.java:92)
... 10 more

The integration branch is hardcoded to 'master' rather than the branch specified