NPE in logs when viewing a deleted document in the recycle bin

2017-05-31 17:54:13,299 [http://localhost:8080/xwiki/bin/viewrev/Menu/test?rev=deleted%3A29] ERROR c.x.x.XWiki                    - Error while evaluating velocity template [menus_language.vm] 
org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with id [/skins/flamingo/view.vm]
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:227)
        at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:361)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:796)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:675)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:650)
        at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:649)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:628)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:614)
        at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:77)
        at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2131)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2109)
        at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:952)
        at sun.reflect.GeneratedMethodAccessor181.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
        at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
        at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
        at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
        at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.directive.Block.render(Block.java:82)
        at org.apache.velocity.runtime.directive.Block$Reference.render(Block.java:161)
        at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:414)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
        at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:361)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:796)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:675)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:650)
        at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:649)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:628)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:614)
        at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:77)
        at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2131)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2109)
        at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:952)
        at sun.reflect.GeneratedMethodAccessor181.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
        at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
        at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
        at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
        at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
        at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:361)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:796)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:675)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:650)
        at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:649)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:628)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:614)
        at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:77)
        at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2131)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2109)
        at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:952)
        at sun.reflect.GeneratedMethodAccessor181.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
        at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
        at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
        at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
        at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
        at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:361)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:796)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:675)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:650)
        at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:649)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:628)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:614)
        at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:77)
        at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2131)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2109)
        at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:952)
        at sun.reflect.GeneratedMethodAccessor181.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
        at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
        at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
        at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
        at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
        at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
        at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
        at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:361)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:796)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:675)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:650)
        at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:649)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:628)
        at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:614)
        at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:77)
        at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2131)
        at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:180)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:463)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:210)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
        at org.eclipse.jetty.server.Server.handle(Server.java:499)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
        at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getTranslationList' in  class com.xpn.xwiki.api.Document threw exception java.lang.NullPointerException at 93:/skins/flamingo/view.vm[line 7, column 28]
        at org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:223)
        at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
        at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
        at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
        at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
        at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
        at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
        at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
        ... 177 common frames omitted
Caused by: java.lang.NullPointerException: null
        at com.xpn.xwiki.doc.XWikiDocument.getTranslationList(XWikiDocument.java:5983)
        at com.xpn.xwiki.api.Document.getTranslationList(Document.java:660)
        at sun.reflect.GeneratedMethodAccessor544.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.velocity.runtime.parser.node.PropertyExecutor.execute(PropertyExecutor.java:142)
        at org.apache.velocity.util.introspection.UberspectImpl$VelGetterImpl.invoke(UberspectImpl.java:539)
        at org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:198)
        ... 186 common frames omitted