Prasad Wagle created ZEPPELIN-1420: -------------------------------------- Summary: java.util.ConcurrentModificationException caused by calling remove inside foreach loop Key: ZEPPELIN-1420 URL: https://issues.apache.org/jira/browse/ZEPPELIN-1420 Project: Zeppelin Issue Type: Bug Reporter: Prasad Wagle
https://github.com/apache/zeppelin/blob/33ddc00c637d043a31f3a7f2e861f58f2c1ebc5a/zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/InterpreterFactory.java#L1021 ERROR [2016-08-25 14:01:22,273] ({qtp237351678-16} NotebookServer.java[onMessage]:271) - Can't handle message java.util.ConcurrentModificationException at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966) at java.util.LinkedList$ListItr.next(LinkedList.java:888) at org.apache.zeppelin.interpreter.InterpreterFactory.getInterpreterSettings(InterpreterFactory.java:1021) at org.apache.zeppelin.socket.NotebookServer.sendAllAngularObjects(NotebookServer.java:1442) at org.apache.zeppelin.socket.NotebookServer.sendNote(NotebookServer.java:563) at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:191) at org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:67) at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128) at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69) at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65) at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122) at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161) at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309) at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214) at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220) at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258) at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632) at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480) at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) 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) -- This message was sent by Atlassian JIRA (v6.3.4#6332)