[xwiki-users] How do I run the attachment porter? - xwiki-users@xwiki.org

22 Mar 2017

Greets,

I modified xwiki.properties and set:
xwiki.store.attachment.hint = file
xwiki.store.attachment.versioning.hint = file
xwiki.store.attachment.recyclebin.hint = file

... and when I started XWiki I got the Java stacktrace below.   I don't see anything
obvious in them that would explain, but figure that they are probably because I did not
run the attachment porter script; after all, the instructions do say up front:
"If you're using the standalone packaging (the ZIP or EXE packagings) then you
already have wiki pages and attachments in the database (since database is the default at
the moment). Thus you'll need to apply the instructions for the next section and run
the Filesystem Attachment Porter."

OK, I saved the Filesystem Attachment Porter to my install dir, /data/xwiki, as
porter.groovy.   Then I installed groovy with "yum install groovy" on
CentOS-7.3.   Then I said:
# groovy porter.groovy
.. and got this:

/bin/build-classpath: Could not find ../../jvm/java/lib Java extension for this JVM
/bin/build-classpath: error: Some specified jars were not found
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
/data/xwiki/porter.groovy: 1: Ambiguous expression could be either a parameterless closure
expression or an isolated open code block;
   solution: Add an explicit closure parameter list, e.g. {it -> ...}, or force it to
be treated as an open block by giving it a label, e.g. L:{...} @ line 1, column 1.
   {{groovy}}
   ^

1 error

I am not familiar with Groovy.  What have I done wrong - am I invoking it wrong?

Thanks much
Doug

-------- stacktrace -----------
javax.servlet.ServletException: org.xwiki.velocity.XWikiVelocityException: Failed to
evaluate content with id [init.vm]
        at
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:520)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427)
        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:136)
        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:745)
Caused by: org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with id
[init.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:790)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:667)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:645)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:623)
        at
com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:107)
        at com.xpn.xwiki.web.XWikiAction.renderInit(XWikiAction.java:602)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:260)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:210)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
        ... 38 more
Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method
'getCurrentInitializerJobStatus' in  class com.xpn.xwiki.api.XWiki threw exception
java.lang.NullPointerException at 17:init.vm[line 1, column 26]
        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.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)
        ... 48 more
Caused by: java.lang.NullPointerException
        at com.xpn.xwiki.api.XWiki.getCurrentInitializerJobStatus(XWiki.java:194)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        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)
        ... 55 more
Caused by:

org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with id [init.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:790)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:667)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:645)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:623)
        at
com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:107)
        at com.xpn.xwiki.web.XWikiAction.renderInit(XWikiAction.java:602)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:260)
        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:136)
        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$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method
'getCurrentInitializerJobStatus' in  class com.xpn.xwiki.api.XWiki threw exception
java.lang.NullPointerException at 17:init.vm[line 1, column 26]
        at
org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:223)
        at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
        at
org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
        at
org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
        at
org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
        at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
        at
org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
        at
org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
        ... 48 more
Caused by: java.lang.NullPointerException
        at com.xpn.xwiki.api.XWiki.getCurrentInitializerJobStatus(XWiki.java:194)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at
org.apache.velocity.runtime.parser.node.PropertyExecutor.execute(PropertyExecutor.java:142)
        at
org.apache.velocity.util.introspection.UberspectImpl$VelGetterImpl.invoke(UberspectImpl.java:539)
        at
org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:198)
        ... 55 more
Caused by:

org.apache.velocity.exception.MethodInvocationException: Invocation of method
'getCurrentInitializerJobStatus' in  class com.xpn.xwiki.api.XWiki threw exception
java.lang.NullPointerException at 17:init.vm[line 1, column 26]
        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.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:790)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:667)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:645)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:623)
        at
com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:107)
        at com.xpn.xwiki.web.XWikiAction.renderInit(XWikiAction.java:602)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:260)
        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:136)
        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$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
        at com.xpn.xwiki.api.XWiki.getCurrentInitializerJobStatus(XWiki.java:194)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at
org.apache.velocity.runtime.parser.node.PropertyExecutor.execute(PropertyExecutor.java:142)
        at
org.apache.velocity.util.introspection.UberspectImpl$VelGetterImpl.invoke(UberspectImpl.java:539)
        at
org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:198)
        ... 55 more
Caused by:

java.lang.NullPointerException
        at com.xpn.xwiki.api.XWiki.getCurrentInitializerJobStatus(XWiki.java:194)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        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)
        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.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:790)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:667)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:645)
        at
com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:623)
        at
com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:107)
        at com.xpn.xwiki.web.XWikiAction.renderInit(XWikiAction.java:602)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:260)
        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$CachedChain.doFilter(ServletHandler.java:1652)
        at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:136)
        at
org.eclipse.jetty.servlet.ServletHandler$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:745)
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