java.lang.NullPointerException

Stack Overflow | bharath simha | 3 months ago
tip
Do you find the tips below useful? Click on the to mark them and say thanks to Rafael Fischer Viola , rafael and iferca . Or join the community to write better ones.
  1. 0
    samebug tip
    If you're using Jackson, try to be sure you have the same version of library in both your tomcat server and IDE
  2. 0
    samebug tip
    If you're using LoganSquare 1.3.1 or 1.3.2, update it to 1.3.3 or further.
  3. 0
    samebug tip
    This is a bug in Wise, updating to v4.10 seems to solve the problem.
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0
    samebug tip
    Install Java Cryptopraphic Extention for your JDK version
  6. 0
    samebug tip
    If you are using maven you'd like to exclude your binaries from filtering process.

    Not finding the right solution?
    Take a tour to get the most out of Samebug.

    Tired of useless tips?

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at nxt.Maincontroll.handleRequest()
    2. nxt
      Maincontroll.handleRequest
      1. nxt.Maincontroll.handleRequest(Maincontroll.java:30)
      1 frame
    3. Spring MVC
      FrameworkServlet.doGet
      1. org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
      2. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771)
      3. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
      4. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647)
      5. org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:552)
      5 frames
    4. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
      2. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
      2 frames
    5. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
      2 frames
    6. Tomcat WS
      WsFilter.doFilter
      1. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
      1 frame
    7. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
      3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
      4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
      5. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
      6. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
      7. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
      8. org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
      9. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
      10. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:509)
      10 frames
    8. Grizzly HTTP
      NioEndpoint$SocketProcessor.run
      1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1104)
      2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
      3. org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
      4. org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
      4 frames
    9. Java RT
      ThreadPoolExecutor$Worker.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      2 frames
    10. Tomcat Util
      TaskThread$WrappingRunnable.run
      1. org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      1 frame
    11. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame