Strange java.lang.ArrayIndexOutOfBoundsException thrown on jetty startup

Question

Whenever I deploy jetty application I hit this issue. Looks like some jar or class is broken.

• Colleagues compiling exactly same code, doesn\'t hit

Answer 1

I came across similar issue when maintaining legacy code.

Servlet.init() for servlet JerseyServlet threw exception

type Exception report

message Servlet.init() for servlet JerseyServlet threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet JerseyServlet threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)
root cause

java.lang.ArrayIndexOutOfBoundsException
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.65 logs.

I fixed it with reducing the package scanning scope in web.xml. E.g., removing the package_with_too_many_classes below in param-value tag fixed the issue.

   JerseyServlet
   com.sun.jersey.spi.spring.container.servlet.SpringServlet
   
       com.sun.jersey.config.property.packages
       package_with_too_many_classes;package_with_approciate_number_of_classes;org.codehaus.jackson.jaxrs
   
   2