javax.servlet
Class ServletException

java.lang.Object
  extended by java.lang.Throwable
      extended by java.lang.Exception
          extended by javax.servlet.ServletException
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
UnavailableException

public class ServletException
extends Exception

Defines a general exception a servlet can throw when it encounters difficulty.

See Also:
Serialized Form

Constructor Summary
ServletException()
          Constructs a new servlet exception.
ServletException(String message)
          Constructs a new servlet exception with the specified message.
ServletException(String message, Throwable rootCause)
          Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation, including a description message.
ServletException(Throwable rootCause)
          Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation.
 
Method Summary
 Throwable getRootCause()
          Returns the exception that caused this servlet exception.
 
Methods inherited from class java.lang.Throwable
fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ServletException

public ServletException()
Constructs a new servlet exception.


ServletException

public ServletException(String message)
Constructs a new servlet exception with the specified message. The message can be written to the server log and/or displayed for the user.

Parameters:
message - a String specifying the text of the exception message

ServletException

public ServletException(String message,
                        Throwable rootCause)
Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation, including a description message.

Parameters:
message - a String containing the text of the exception message
rootCause - the Throwable exception that interfered with the servlet's normal operation, making this servlet exception necessary

ServletException

public ServletException(Throwable rootCause)
Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation. The exception's message is based on the localized message of the underlying exception.

This method calls the getLocalizedMessage method on the Throwable exception to get a localized exception message. When subclassing ServletException, this method can be overridden to create an exception message designed for a specific locale.

Parameters:
rootCause - the Throwable exception that interfered with the servlet's normal operation, making the servlet exception necessary
Method Detail

getRootCause

public Throwable getRootCause()
Returns the exception that caused this servlet exception.

Returns:
the Throwable that caused this servlet exception

(Built by coreservlets)

As of July 2010, there were no online versions of the servlet 3.0, JSP 2.2, and EL 2.2 Javadocs, except as part of the huge Java EE 6 API. So, I built them myself from the Tomcat 7 source code.

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