java.lang.NullPointerException

Stack Overflow | cool_guy | 6 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at com.nag.library.database.SpringDB.getAllBooksDao()
  2. com.nag.library
    BookResource.getBooks
    1. com.nag.library.database.SpringDB.getAllBooksDao(SpringDB.java:24)
    2. com.nag.library.service.BookService.getAllBooks(BookService.java:18)
    3. com.nag.library.resource.BookResource.getBooks(BookResource.java:36)
    3 frames
  3. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    4. java.lang.reflect.Method.invoke(Unknown Source)
    4 frames
  4. jersey-core-server
    ServerRuntime$2.run
    1. org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
    2. org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
    3. org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
    4. org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160)
    5. org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
    6. org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
    7. org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
    8. org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
    9. org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
    9 frames
  5. Jersey Core
    Errors.process
    1. org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    2. org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    3. org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    4. org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    4 frames