SWTError

This error is thrown whenever an unrecoverable error occurs internally in SWT. The message text and error code provide a further description of the problem. The exception has a <code>throwable</code> field which holds the underlying throwable that caused the problem (if this information is available (i.e. it may be null)). <p> SWTErrors are thrown when something fails internally which either leaves SWT in an unknown state (eg. the o/s call to remove an item from a list returns an error code) or when SWT is left in a known-to-be-unrecoverable state (eg. it runs out of callback resources). SWTErrors should not occur in typical programs, although "high reliability" applications should still catch them. </p><p> This class also provides support methods used by SWT to match error codes to the appropriate exception class (SWTError, SWTException, or IllegalArgumentException) and to provide human readable strings for SWT error codes. </p>

@see SWTException @see SWT#error(int) @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>

Constructors

this
this()

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

this
this(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 <code>null</code> as the message is equivalent to specifying an empty string.

this
this(int code)

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

this
this(int code, String message)

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

Members

Functions

getCause
Throwable getCause()

Returns the underlying throwable that caused the problem, or null if this information is not available. <p> 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. </p> @return the underlying throwable

getMessage
String getMessage()

Returns the string describing this SWTError object. <p> It is combined with the message string of the Throwable which caused this SWTError (if this information is available). </p> @return the error message string of this SWTError object

printStackTrace
void printStackTrace()

Outputs a printable representation of this error's stack trace on the standard error stream. <p> Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) are not provided in order to maintain compatibility with CLDC. </p>

throwable
Throwable throwable(Throwable e)

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

Variables

code
int code;

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

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