Package org.jfree.util

Class StackableException

  • All Implemented Interfaces:
    java.io.Serializable
    Direct Known Subclasses:
    ObjectDescriptionException, ObjectFactoryException
    public abstract class StackableException
extends java.lang.Exception
    A baseclass for exceptions, which could have parent exceptions. These parent exceptions are raised in a subclass and are now wrapped into a subclass of this Exception.

    The parents are printed when this exception is printed. This class exists mainly for debugging reasons, as with them it is easier to detect the root cause of an error.

    Author:
    Thomas Morgner
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      StackableException()
      Creates a StackableRuntimeException with no message and no parent.
      StackableException​(java.lang.String message)
      Creates an exception.
      StackableException​(java.lang.String message, java.lang.Exception ex)
      Creates an exception.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Exception getParent()
      Returns the parent exception (possibly null).
      void printStackTrace()
      Prints this Throwable and its backtrace to the standard error stream.
      void printStackTrace​(java.io.PrintStream stream)
      Prints the stack trace to the specified stream.
      void printStackTrace​(java.io.PrintWriter writer)
      Prints the stack trace to the specified writer.

      • Methods inherited from class java.lang.Throwable

        addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, setStackTrace, toString

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • StackableException

        public StackableException()
        Creates a StackableRuntimeException with no message and no parent.

      • StackableException

        public StackableException​(java.lang.String message,
                          java.lang.Exception ex)
        Creates an exception.
        Parameters:
        message - the exception message.
        ex - the parent exception.

      • StackableException

        public StackableException​(java.lang.String message)
        Creates an exception.
        Parameters:
        message - the exception message.

    • Method Detail

      • getParent

        public java.lang.Exception getParent()
        Returns the parent exception (possibly null).
        Returns:
        the parent exception.

      • printStackTrace

        public void printStackTrace​(java.io.PrintStream stream)
        Prints the stack trace to the specified stream.
        Overrides:
        printStackTrace in class java.lang.Throwable
        Parameters:
        stream - the output stream.

      • printStackTrace

        public void printStackTrace​(java.io.PrintWriter writer)
        Prints the stack trace to the specified writer.
        Overrides:
        printStackTrace in class java.lang.Throwable
        Parameters:
        writer - the writer.

      • printStackTrace

        public void printStackTrace()
        Prints this Throwable and its backtrace to the standard error stream. This method prints a stack trace for this Throwable object on the error output stream that is the value of the field System.err. The first line of output contains the result of the Throwable.toString() method for this object. Remaining lines represent data previously recorded by the method Throwable.fillInStackTrace(). The format of this information depends on the implementation, but the following example may be regarded as typical: 
         java.lang.NullPointerException
         at MyClass.mash(MyClass.java:9)
         at MyClass.crunch(MyClass.java:6)
         at MyClass.main(MyClass.java:3)
        This example was produced by running the program: 
        
 class MyClass {

     public static void main(String[] argv) {
         crunch(null);
     }
     static void crunch(int[] a) {
         mash(a);
     }

     static void mash(int[] b) {
         System.out.println(b[0]);
     }
 }
        Overrides:
        printStackTrace in class java.lang.Throwable
        See Also:
        System.err