{"error":true,"message":"UnknownId: ''","stackTrace":"java.lang.Exception: UnknownId: ''\n\tat com.cranconsulting.pandora.PandoraTool$$anonfun$clear$1.apply(PandoraTool.scala:936)\n\tat com.cranconsulting.pandora.PandoraTool$$anonfun$clear$1.apply(PandoraTool.scala:922)\n\tat com.cranconsulting.pandora.ToolResult$.withToolResult(ToolResult.scala:23)\n\tat com.cranconsulting.pandora.PandoraTool.clear(PandoraTool.scala:921)\n\tat sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n\tat sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n\tat sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n\tat java.lang.reflect.Method.invoke(Method.java:498)\n\tat org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)\n\tat org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)\n\tat org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)\n\tat org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)\n\tat org.apache.velocity.context.ProxyVMContext.get(ProxyVMContext.java:219)\n\tat org.apache.velocity.runtime.parser.node.ASTReference.getVariableValue(ASTReference.java:991)\n\tat org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:240)\n\tat org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)\n\tat org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)\n\tat org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)\n\tat org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)\n\tat org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)\n\tat org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)\n\tat org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)\n\tat org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)\n\tat org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)\n\tat org.apache.velocity.Template.merge(Template.java:356)\n\tat org.apache.velocity.Template.merge(Template.java:260)\n\tat org.apache.velocity.tools.view.VelocityView.performMerge(VelocityView.java:942)\n\tat org.apache.velocity.tools.view.VelocityView.merge(VelocityView.java:902)\n\tat com.cranconsulting.pandora.PandoraServlet.mergeTemplate(PandoraServlet.scala:64)\n\tat org.apache.velocity.tools.view.VelocityViewServlet.doRequest(VelocityViewServlet.java:220)\n\tat org.apache.velocity.tools.view.VelocityViewServlet.doGet(VelocityViewServlet.java:182)\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:735)\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:848)\n\tat org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496)\n\tat org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82)\n\tat org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294)\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1476)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)\n\tat org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:68)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1088)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:370)\n\tat org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)\n\tat org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971)\n\tat org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033)\n\tat org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)\n\tat org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)\n\tat org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)\n\tat org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)\n\tat org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)\n\tat java.lang.Thread.run(Thread.java:745)\n"}