Removing all content from a Wiki page results in Java dump

1. A user edits a wiki page
2. The user deletes all text and all content from the wiki page
3. User clicks save
4. A java dump occurs (see below)

The page is unrecoverable and there appears to be no way to recover the wiki – the page appears permanently locked up in the java dump.

The Action encountered a problem.

Please report this problem to JIRA

URL:http://qa1-us.sakaiproject.org:8580/sakai-rwiki-tool/WEB-INF/command-pages/errorpage.jsp?null
action : save
save : Save
pageName : /site/e62706f3-c5f1-4e74-80a2-49f05caea697/home
realm : /site/e62706f3-c5f1-4e74-80a2-49f05caea697
content :
panel : Main
version : 1168552223933
Error: org.springframework.orm.hibernate3.HibernateSystemException
: Exception occurred inside setter of uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectContentImpl.content; nested exception is org.hibernate.PropertyAccessException: Exception occurred inside setter of uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectContentImpl.content
org.springframework.orm.hibernate3.HibernateSystemException: Exception occurred inside setter of uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectContentImpl.content; nested exception is org.hibernate.PropertyAccessException: Exception occurred inside setter of uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectContentImpl.content
org.hibernate.PropertyAccessException: Exception occurred inside setter of uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectContentImpl.content
at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:65)
at org.hibernate.tuple.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:330)
at org.hibernate.tuple.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:188)
at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3232)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:129)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2145)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:94)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1533)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283)
at uk.ac.cam.caret.sakai.rwiki.component.dao.impl.RWikiCurrentObjectContentDaoImpl$1.doInHibernate(RWikiCurrentObjectContentDaoImpl.java:58)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:334)
at uk.ac.cam.caret.sakai.rwiki.component.dao.impl.RWikiCurrentObjectContentDaoImpl.getContentObject(RWikiCurrentObjectContentDaoImpl.java:64)
at uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectImpl.lazyLoadContentObject(RWikiObjectImpl.java:667)
at uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectImpl.getContent(RWikiObjectImpl.java:697)
at uk.ac.cam.caret.sakai.rwiki.component.service.impl.RenderServiceImpl.renderPage(RenderServiceImpl.java:105)
at uk.ac.cam.caret.sakai.rwiki.tool.service.impl.ToolRenderServiceImpl.renderPage(ToolRenderServiceImpl.java:124)
at uk.ac.cam.caret.sakai.rwiki.tool.service.impl.ToolRenderServiceImpl.renderPage(ToolRenderServiceImpl.java:96)
at uk.ac.cam.caret.sakai.rwiki.tool.bean.RenderBean.getRenderedPage(RenderBean.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:585)
at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:314)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:190)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:932)
at org.apache.jsp.WEB_002dINF.command_002dpages.view_jsp._jspx_meth_c_out_11(view_jsp.java:1378)
at org.apache.jsp.WEB_002dINF.command_002dpages.view_jsp._jspService(view_jsp.java:333)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at uk.ac.cam.caret.sakai.rwiki.tool.command.SaveCommand.successfulUpdateDispatch(SaveCommand.java:238)
at uk.ac.cam.caret.sakai.rwiki.tool.command.SaveCommand.execute(SaveCommand.java:205)
at uk.ac.cam.caret.sakai.rwiki.tool.service.impl.CommandServiceImpl$WrappedCommand.execute(CommandServiceImpl.java:76)
at uk.ac.cam.caret.sakai.rwiki.tool.RWikiServlet.execute(RWikiServlet.java:170)
at uk.ac.cam.caret.sakai.rwiki.tool.RWikiServlet.doPost(RWikiServlet.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:501)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:359)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.sakaiproject.tool.impl.ActiveToolComponent$MyActiveTool.forward(ActiveToolComponent.java:339)
at org.sakaiproject.portal.charon.CharonPortal.forwardTool(CharonPortal.java:1632)
at org.sakaiproject.portal.charon.CharonPortal.doTool(CharonPortal.java:1563)
at org.sakaiproject.portal.charon.CharonPortal.doPost(CharonPortal.java:1077)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:532)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor1813.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:42)
... 85 more
Caused by: java.lang.NullPointerException
at uk.ac.cam.caret.sakai.rwiki.model.RWikiObjectContentImpl.setContent(RWikiObjectContentImpl.java:63)
... 89 more