Hi all,
we have run in an Hibernate LazyInitialization issue not yet listed (or
not found by me) in JIRA (there are a couple of similar issues, most of
which seemed to have been fixed in 6.3 or earlier).
Env (DSpace 6.3 with bug fixes, JSPUI, Postgres 10.16, Tomcat 8.5.51,
Java 1.7.0_281). VersionedIdentifier Provider enabled but not used yet.
After editing the bitstreams of an item and the bitstream description,
the item is not accessible via the link anymore (though accessible for
admin via edit item). From the logs first there is a warning (Comparison
method violates its general contract!) and later the hibernate exception
see below. The item is still in the browse index and searchable, but
not accessible.
Has anyone run into a similar issue?
Sunny Greetings
Claudia
2021-04-12 20:19:51,630 WARN org.dspace.app.webui.servlet.DSpaceServlet
@
anonymous:session_id=62F86E01B179D7BC16B03EF276233339:ip_addr=94.220.0.0:general_jspui_error:java.lang.IllegalArgumentException\colon;
Comparison method violates its general contract!
java.lang.IllegalArgumentException: Comparison method violates its
general contract!
at java.util.TimSort.mergeLo(TimSort.java:777)
at java.util.TimSort.mergeAt(TimSort.java:514)
at java.util.TimSort.mergeForceCollapse(TimSort.java:457)
at java.util.TimSort.sort(TimSort.java:254)
at java.util.Arrays.sort(Arrays.java:1438)
at java.util.List.sort(List.java:478)
at java.util.Collections.sort(Collections.java:177)
at
org.dspace.app.util.GoogleMetadata.findLinkableFulltext(GoogleMetadata.java:1054)
at
org.dspace.app.util.GoogleMetadata.getPDFSimpleUrl(GoogleMetadata.java:1008)
at
org.dspace.app.util.GoogleMetadata.addSingleField(GoogleMetadata.java:259)
at
org.dspace.app.util.GoogleMetadata.parseItem(GoogleMetadata.java:704)
at
org.dspace.app.util.GoogleMetadata.<init>(GoogleMetadata.java:219)
at
org.dspace.app.webui.servlet.HandleServlet.displayItem(HandleServlet.java:461)
at
org.dspace.app.webui.servlet.HandleServlet.doDSGet(HandleServlet.java:263)
at
org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:126)
at
org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:73)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.dspace.rdf.negotiation.NegotiationFilter.doFilter(NegotiationFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at
org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:508)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1623)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
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)
2021-04-12 20:19:51,694 WARN
org.dspace.rdf.negotiation.NegotiationFilter @ Will deliver HTML, as I
cannot determine if content negotiation should be enabled or not:
org.apache.jasper.JasperException:
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: org.dspace.content.DSpaceObject.metadata, could not
initialize proxy - no Session
javax.servlet.ServletException: org.apache.jasper.JasperException:
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: org.dspace.content.DSpaceObject.metadata, could not
initialize proxy - no Session
at org.dspace.app.webui.util.JSPManager.showJSP(JSPManager.java:71)
at
org.dspace.app.webui.util.JSPManager.showInternalError(JSPManager.java:87)
at
org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:178)
at
org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:73)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.dspace.rdf.negotiation.NegotiationFilter.doFilter(NegotiationFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at
org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:508)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1623)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
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: org.apache.jasper.JasperException:
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: org.dspace.content.DSpaceObject.metadata, could not
initialize proxy - no Session
at
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:598)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:514)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:470)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:316)
at org.dspace.app.webui.util.JSPManager.showJSP(JSPManager.java:64)
... 33 more
Caused by: 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.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.content.Community.getName(Community.java:258)
at
org.dspace.app.webui.jsptag.LayoutTag.doStartTag(LayoutTag.java:222)
at
org.apache.jsp.error.internal_jsp._jspService(internal_jsp.java:146)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)
... 46 more
--
Claudia Juergen
Technische Universität Dortmund
Universitätsbibliothek
Bibliotheks-IT
Vogelpothsweg 76
44227 Dortmund
Tel.: +49 231-755 40 43
Fax: +49 231-755 40 32
claudia.juer...@tu-dortmund.de
www.ub.tu-dortmund.de
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