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java.nio.channels.OverlappingFileLockException: 	at sun.nio.ch.SharedFileLockTable.checkList(Unknown Source)	at sun.nio.ch.SharedFileLockTable.add(Unknown Source)	at sun.nio.ch.FileChannelImpl.tryLock(Unknown Source)	at java.nio.channels.FileChannel.tryLock(Unknown Source)	at org.apache.jackrabbit.core.RepositoryImpl.acquireRepositoryLock(RepositoryImpl.java:317)	at org.apache.jackrabbit.core.RepositoryImpl.(RepositoryImpl.java:198)	at org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:484)	at org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:241)	at org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:261)	at org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:329)	at org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:359)	at com.sriseshaa.raybestos.FileDownload.doGet(FileDownload.java:57)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1083)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:640)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Unknown Source)