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java.lang.RuntimeException: org.eclipse.jgit.api.errors.RefNotFoundException: Ref upstream/HEAD can not be resolved
org.eclipse.jgit.api.errors.RefNotFoundException: Ref upstream/HEAD can not be resolved	at org.eclipse.jgit.api.CreateBranchCommand.getStartPoint(CreateBranchCommand.java:291)	at org.eclipse.jgit.api.CreateBranchCommand.call(CreateBranchCommand.java:136)	at org.uberfire.java.nio.fs.jgit.util.JGitUtil.syncRepository(JGitUtil.java:307)	at org.uberfire.java.nio.fs.jgit.JGitFileSystemProvider.getFileSystem(JGitFileSystemProvider.java:662)	at org.uberfire.java.nio.file.FileSystems.getFileSystem(FileSystems.java:66)	at org.uberfire.io.impl.AbstractIOService.getFileSystem(AbstractIOService.java:214)	at org.uberfire.ext.metadata.io.IOServiceIndexedImpl.getFileSystem(IOServiceIndexedImpl.java:176)	at org.uberfire.io.impl.cluster.IOServiceClusterImpl$3$1$1.run(IOServiceClusterImpl.java:193)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)	at java.util.concurrent.FutureTask.run(FutureTask.java:262)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:745)