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org.eclipse.swt
Class SWTException

java.lang.Object
  

java.lang.Throwable
      

java.lang.Exception
          

java.lang.RuntimeException
              
org.eclipse.swt.SWTException

All Implemented Interfaces:

Serializable

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public class SWTException

extends RuntimeException

This runtime exception is thrown whenever a recoverable error occurs internally in SWT. The message text and error code provide a further description of the problem. The exception has a throwable field which holds the underlying exception that caused the problem (if this information is available (i.e. it may be null)).

SWTExceptions are thrown when something fails internally, but SWT is left in a known stable state (eg. a widget call was made from a non-u/i thread, or there is failure while reading an Image because the source file was corrupt).

Since:

1.0

See Also:

SWTError, Serialized Form

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Field Summary
int	code           The SWT error code, one of SWT.ERROR_*.
Throwable	throwable           The underlying throwable that caused the problem, or null if this information is not available.

 

Constructor Summary

SWTException ()           Constructs a new instance of this class with its stack trace filled in.

SWTException (int code)           Constructs a new instance of this class with its stack trace and error code filled in.

SWTException (int code, String message)           Constructs a new instance of this class with its stack trace, error code and message filled in.

SWTException ( String message)           Constructs a new instance of this class with its stack trace and message filled in.

 

Method Summary
Throwable	getCause ()           Returns the underlying throwable that caused the problem, or null if this information is not available.
String	getMessage ()           Returns the string describing this SWTException object.
void	printStackTrace ()           Outputs a printable representation of this exception's stack trace on the standard error stream.

 

Methods inherited from class java.lang. Throwable

fillInStackTrace, getLocalizedMessage, getStackTrace, initCause, printStackTrace, printStackTrace, setStackTrace, toString

 

Methods inherited from class java.lang. Object

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

 

Field Detail

code

public int code

The SWT error code, one of SWT.ERROR_*.

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throwable

public 
Throwable throwable

The underlying throwable that caused the problem, or null if this information is not available.

Constructor Detail

SWTException

public SWTException()

Constructs a new instance of this class with its stack trace filled in. The error code is set to an unspecified value.

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SWTException

public SWTException(
String message)

Constructs a new instance of this class with its stack trace and message filled in. The error code is set to an unspecified value. Specifying null as the message is equivalent to specifying an empty string.

Parameters:

message - the detail message for the exception

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SWTException

public SWTException(int code)

Constructs a new instance of this class with its stack trace and error code filled in.

Parameters:

code - the SWT error code

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SWTException

public SWTException(int code,
                    
String message)

Constructs a new instance of this class with its stack trace, error code and message filled in. Specifying null as the message is equivalent to specifying an empty string.

Parameters:

code - the SWT error code

message - the detail message for the exception

Method Detail

getCause

public 
Throwable getCause()

Returns the underlying throwable that caused the problem, or null if this information is not available.

NOTE: This method overrides Throwable.getCause() that was added to JDK1.4. It is necessary to override this method in order for inherited printStackTrace() methods to work.

Returns:

the underlying throwable

Since:

1.0

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getMessage

public 
String getMessage()

Returns the string describing this SWTException object.

It is combined with the message string of the Throwable which caused this SWTException (if this information is available).

Returns:

the error message string of this SWTException object

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printStackTrace

public void printStackTrace()

Outputs a printable representation of this exception's stack trace on the standard error stream.

Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) are not provided in order to maintain compatibility with CLDC.

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