org.xwiki.rendering.macro.MacroExecutionException: Failed to evaluate Script Macro for content [println "[[Confirm launching migration>>${doc.fullName}?confirm=1]]"

for(item in xwiki.searchDocuments("where doc.fullName like 'XWiki.Meeting%'")) {
 def itemdoc = xwiki.getDocument(item)
 println "* Moving page ${item} to space MMCode"
 if (request.confirm=="1")
  itemdoc.rename("MMCode.${itemdoc.name}")
}

for(item in xwiki.searchDocuments("where (doc.fullName like 'XWiki.Meeting%' or doc.space = 'MMCode' or doc.content like '%XWiki.Meeting%') and doc.name<>'Install' and doc.name<>'Migration'")) {
 def changed = false
 def itemdoc = xwiki.getDocument(item)
 def content = itemdoc.getContent()
 def newcontent = content.replaceAll("XWiki.Meeting", "MMCode.Meeting").replaceAll("MMCode.MeetingManager ", "XWiki.MeetingManager ").replaceAll("MMCode.MeetingManager\\.", "XWiki.MeetingManager.")
 if (content!=newcontent) {
   changed = true
   if (request.confirm=="1")
    itemdoc.setContent(newcontent)
 }

 // Modifying JS Extension code
 itemdoc.use("XWiki.JavaScriptExtension")
 def code = itemdoc.getValue("code")
 if (code) {
  def newcode = code.replaceAll("XWiki.Meeting", "MMCode.Meeting").replaceAll("MMCode.MeetingManager ", "XWiki.MeetingManager ").replaceAll("MMCode.MeetingManager\\.", "XWiki.MeetingManager.")  
  if (code!=newcode) {
    changed = true
    if (request.confirm=="1")
     itemdoc.set("code", newcode)
  }
 }

 if (changed) {
   println "* Updating code in page ${item}"
   if (request.confirm=="1")
     itemdoc.save("Migrated Meeting Manager code")
 }
}

def boolean migrateDoc(document, confirm) {
 def result = false
 result |= migrateClass(document, "XWiki.MeetingClass", "MMCode.MeetingClass", confirm)
 result |= migrateClass(document, "XWiki.MeetingCycleClass", "MMCode.MeetingCycleClass", confirm)
 result |= migrateClass(document, "XWiki.MeetingCycleItemClass", "MMCode.MeetingCycleItemClass", confirm)
 result |= migrateClass(document, "XWiki.MeetingParticipantClass", "MMCode.MeetingParticipantClass", confirm)
 result |= migrateClass(document, "XWiki.MeetingDateAttemptClass", "MMCode.MeetingDateAttemptClass", confirm)
 return result
}

def boolean migrateClass(document, sourceclass, targetclass, confirm) {
  def result = false
  for(obj in document.getObjects(sourceclass)) {
   result = true
   if (obj!=null) {
    if (confirm) {
     def newobj = new com.xpn.xwiki.objects.BaseObject();
     newobj.merge(obj);
     newobj.setClassName(targetclass);
     document.addObject(targetclass, newobj);
     document.removeObject(obj);
    }
   }
  }
  return result
}

for(item in xwiki.searchDocuments(", BaseObject as obj where doc.fullName=obj.name and obj.className like 'XWiki.Meeting%Class'")) {
 println "* Migrating classes in page ${item}"
 if (request.confirm=="1") {
    def itemdoc = xwiki.getDocument(item)
    def itemdocument = itemdoc.getDocument()
    if (migrateDoc(itemdocument, request.confirm=="1")) {
        xwiki.getXWiki().saveDocument(itemdocument, "Migrated Meeting Manager code", xcontext.getContext())
    }
 }
}]
 at org.xwiki.rendering.macro.script.AbstractJSR223ScriptMacro.evaluateBlock(AbstractJSR223ScriptMacro.java:198)
 at org.xwiki.rendering.macro.script.AbstractJSR223ScriptMacro.evaluateBlock(AbstractJSR223ScriptMacro.java:56)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:182)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:58)
 at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:311)
 at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183)
 at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:88)
 at org.xwiki.display.internal.DocumentContentAsyncExecutor.executeInCurrentExecutionContext(DocumentContentAsyncExecutor.java:395)
 at org.xwiki.display.internal.DocumentContentAsyncExecutor.execute(DocumentContentAsyncExecutor.java:268)
 at org.xwiki.display.internal.DocumentContentAsyncRenderer.execute(DocumentContentAsyncRenderer.java:112)
 at org.xwiki.rendering.async.internal.block.AbstractBlockAsyncRenderer.render(AbstractBlockAsyncRenderer.java:157)
 at org.xwiki.rendering.async.internal.block.AbstractBlockAsyncRenderer.render(AbstractBlockAsyncRenderer.java:54)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:290)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:267)
 at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.execute(DefaultBlockAsyncRendererExecutor.java:125)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:67)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:43)
 at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96)
 at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:123)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:52)
 at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68)
 at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42)
 at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1369)
 at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1505)
 at com.xpn.xwiki.doc.XWikiDocument.displayDocument(XWikiDocument.java:1455)
 at com.xpn.xwiki.doc.XWikiDocument.displayDocument(XWikiDocument.java:1424)
 at com.xpn.xwiki.api.Document.displayDocument(Document.java:788)
 at jdk.internal.reflect.GeneratedMethodAccessor732.invoke(Unknown Source)
 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.base/java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
 at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:704)
 at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:75)
 at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:242)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:190)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.xwiki.velocity.internal.directive.TryCatchDirective.render(TryCatchDirective.java:86)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:304)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.Template.merge(Template.java:358)
 at org.apache.velocity.Template.merge(Template.java:262)
 at org.xwiki.velocity.internal.InternalVelocityEngine.evaluate(InternalVelocityEngine.java:225)
 at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:105)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:174)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:135)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:54)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:284)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:284)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:267)
 at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:904)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:866)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:853)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderNoException(InternalTemplateManager.java:808)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderNoException(InternalTemplateManager.java:800)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.renderNoException(DefaultTemplateManager.java:79)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.renderNoException(DefaultTemplateManager.java:73)
 at org.xwiki.template.script.TemplateScriptService.render(TemplateScriptService.java:54)
 at jdk.internal.reflect.GeneratedMethodAccessor272.invoke(Unknown Source)
 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.base/java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
 at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:492)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:218)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:331)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:261)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:304)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.Template.merge(Template.java:358)
 at org.apache.velocity.Template.merge(Template.java:262)
 at org.xwiki.velocity.internal.InternalVelocityEngine.evaluate(InternalVelocityEngine.java:225)
 at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:105)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:174)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:135)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:54)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:284)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:284)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:267)
 at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:904)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:866)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:853)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderNoException(InternalTemplateManager.java:808)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderNoException(InternalTemplateManager.java:800)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.renderNoException(DefaultTemplateManager.java:79)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.renderNoException(DefaultTemplateManager.java:73)
 at org.xwiki.template.script.TemplateScriptService.render(TemplateScriptService.java:54)
 at jdk.internal.reflect.GeneratedMethodAccessor272.invoke(Unknown Source)
 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.base/java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
 at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:492)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:218)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:331)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:261)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:304)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:171)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:190)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.Template.merge(Template.java:358)
 at org.apache.velocity.Template.merge(Template.java:262)
 at org.xwiki.velocity.internal.InternalVelocityEngine.evaluate(InternalVelocityEngine.java:225)
 at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:105)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:174)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:135)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:54)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:284)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:284)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:267)
 at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:904)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:866)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:846)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:832)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:91)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:85)
 at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2564)
 at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:180)
 at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:651)
 at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:339)
 at com.xpn.xwiki.web.LegacyActionServlet.service(LegacyActionServlet.java:108)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:122)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:61)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:132)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
 at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346)
 at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
 at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
 at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888)
 at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684)
 at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
 at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 at java.base/java.lang.Thread.run(Unknown Source)
Caused by: javax.script.ScriptException: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getContent() on null object
 at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:164)
 at org.xwiki.rendering.macro.script.AbstractJSR223ScriptMacro.eval(AbstractJSR223ScriptMacro.java:338)
 at org.xwiki.rendering.macro.script.AbstractJSR223ScriptMacro.evaluateBlock(AbstractJSR223ScriptMacro.java:238)
 at org.xwiki.rendering.macro.script.AbstractJSR223ScriptMacro.evaluateBlock(AbstractJSR223ScriptMacro.java:193)
 ... 184 more
Caused by: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getContent() on null object
 at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:334)
 at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:161)
 ... 187 more
Caused by: java.lang.NullPointerException: Cannot invoke method getContent() on null object
 at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:113)
 at org.codehaus.groovy.vmplugin.v8.IndyGuardsFiltersAndSignatures.invokeGroovyObjectInvoker(IndyGuardsFiltersAndSignatures.java:151)
 at org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:321)
 at Script18.run(Script18.groovy:13)
 at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:331)
 ... 188 more