Runtime exception while creating a group

java.lang.IllegalStateException: This tree does not exist
	at com.google.common.base.Preconditions.checkState(Preconditions.java:149)
	at org.apache.jackrabbit.oak.core.MutableTree.checkExists(MutableTree.java:381)
	at org.apache.jackrabbit.oak.core.MutableTree.setProperty(MutableTree.java:298)
	at org.apache.jackrabbit.oak.util.NodeUtil.setName(NodeUtil.java:226)
	at org.apache.jackrabbit.oak.util.NodeUtil.addChild(NodeUtil.java:108)
	at org.apache.jackrabbit.oak.util.NodeUtil.getOrAddChild(NodeUtil.java:115)
	at org.apache.jackrabbit.oak.security.user.UserProvider.createFolderNodes(UserProvider.java:280)
	at org.apache.jackrabbit.oak.security.user.UserProvider.createAuthorizableNode(UserProvider.java:247)
	at org.apache.jackrabbit.oak.security.user.UserProvider.createGroup(UserProvider.java:185)
	at org.apache.jackrabbit.oak.security.user.UserManagerImpl.createGroup(UserManagerImpl.java:188)
	at org.apache.jackrabbit.oak.security.user.UserManagerImpl.createGroup(UserManagerImpl.java:166)
	at org.apache.jackrabbit.oak.jcr.security.authorization.UserManagementTest.testCreateGroup3(UserManagementTest.java:170)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at junit.framework.TestCase.runTest(TestCase.java:168)
	at junit.framework.TestCase.runBare(TestCase.java:134)
	at junit.framework.TestResult$1.protect(TestResult.java:110)
	at junit.framework.TestResult.runProtected(TestResult.java:128)
	at junit.framework.TestResult.run(TestResult.java:113)
	at junit.framework.TestCase.run(TestCase.java:124)
	at org.apache.jackrabbit.test.AbstractJCRTest.run(AbstractJCRTest.java:464)
	at junit.framework.TestSuite.runTest(TestSuite.java:243)
	at junit.framework.TestSuite.run(TestSuite.java:238)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)