java.lang.NullPointerException

Stack Overflow | Preethi | 1 month ago
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    Apache Tomcat throws errors when uploaded App

    Stack Overflow | 3 years ago | Avedo
    java.lang.NullPointerException
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    SetCharacterEncodingFilter

    Oracle Community | 1 decade ago | 843841
    java.lang.NullPointerException
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    NullPointer Exception in  SetCharacterEncodingFilter

    Oracle Community | 1 decade ago | 843841
    java.lang.NullPointerException
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    JSP 2.0 and JSTL EL

    tomcat-taglibs-user | 10 years ago | Dick Weisinger
    java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.Lib.dao.Librariandao.LibrarianUpdate()
    2. com.Lib.dao
      Librariandao.LibrarianUpdate
      1. com.Lib.dao.Librariandao.LibrarianUpdate(Librariandao.java:176)
      1 frame
    3. org.apache.jsp
      UpdateLibrarian_jsp._jspService
      1. org.apache.jsp.View.UpdateLibrarian_jsp._jspService(UpdateLibrarian_jsp.java:97)
      1 frame
    4. GWT dev
      HttpJspBase.service
      1. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
      1 frame
    5. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
      1 frame
    6. GWT dev
      JspServlet.service
      1. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
      2. org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
      3. org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
      3 frames
    7. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
      1 frame
    8. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      2 frames
    9. Tomcat WS
      WsFilter.doFilter
      1. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
      1 frame
    10. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
      4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
      5. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
      6. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
      7. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
      8. org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
      9. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      10. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      10 frames
    11. Grizzly HTTP
      JIoEndpoint$SocketProcessor.run
      1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
      2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
      3. org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
      3 frames
    12. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      3. java.lang.Thread.run(Unknown Source)
      3 frames