Hello, When we try to create a new group by clicking the "Create New Group" button, DSpace displays an internal server error and we get a java.lang.StackOverflowError in the logs from what looks like an infinite loop. Any suggestions on how to prevent this? Error message below.
2020-06-18 11:03:40,871 WARN org.dspace.app.webui.servlet.InternalErrorServlet @ :session_id=0FB44EED5587C201CD14C6EE0423B3A3:internal_error:-- URL Was: https://my-website/tools/group-edit -- Method: POST -- Parameters were: -- submit_add: "Create New Group" javax.servlet.ServletException: Servlet execution threw an exception at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:326) 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.dspace.app.webui.filter.RegisteredOnlyFilter.doFilter(RegisteredOnlyFilter.java:66) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78) 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:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498) 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:962) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.StackOverflowError at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:679) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) at org.dspace.eperson.GroupServiceImpl.getChildren(GroupServiceImpl.java:694) ---------- There are hundreds of these same lines ------------------------------------------- 2020-06-18 11:03:40,881 WARN org.dspace.app.webui.util.UIUtil @ Unable to send email alert org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.dspace.content.DSpaceObject.metadata, could not initialize proxy - no Session at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:569) at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:188) at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:548) at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:126) at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:548) at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:126) at org.hibernate.collection.internal.PersistentBag.iterator(PersistentBag.java:266) at org.dspace.content.DSpaceObjectServiceImpl.getMetadata(DSpaceObjectServiceImpl.java:129) at org.dspace.content.DSpaceObjectServiceImpl.getMetadataFirstValue(DSpaceObjectServiceImpl.java:380) at org.dspace.eperson.EPerson.getFirstName(EPerson.java:253) at org.dspace.eperson.EPerson.getFullName(EPerson.java:229) at org.dspace.app.webui.util.UIUtil.sendAlert(UIUtil.java:531) at org.dspace.app.webui.servlet.InternalErrorServlet.doGet(InternalErrorServlet.java:54) at org.dspace.app.webui.servlet.InternalErrorServlet.doPost(InternalErrorServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) 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.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:743) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:410) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:337) at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:479) at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:417) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:204) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) -- All messages to this mailing list should adhere to the DuraSpace Code of Conduct: https://duraspace.org/about/policies/code-of-conduct/ --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. 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