Bug 173236 NPE is thrown when opening a design file that is created by a higher version BIRT
1. New a report, switch to xml-source view. 2. Edit the version number in line 2, from 3.2.10 to 3.2.11 and save. 3. Close the report and reopen it. The xml-source view is opened automatically. Switch to lay-out view, there's an error message window, and NPE is thrown in error-log view. When user is trying to open a design file that is created by a higher version BIRT, model will throw an exception and stop parsing the report design file. UI should 1. Prevent the NPE 2. Telling user that he is using a higher version design file that this build does not support. (Catch the exception and reflect the message in the exception to end user)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/DesignParserException.java
}
	/**
	 * Constructs the design parser exception with the file name, the property
	 * name and the error code.
	 * 
	 * @param values
	 *            the values for message
	 * @param errCode
	 *            the error condition
	 */
	public DesignParserException( String[] values, String errCode )
	{
		super( errCode, values, null );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see java.lang.Throwable#getLocalizedMessage()
	 */
	public String getLocalizedMessage( )
	{
		if ( sResourceKey == DESIGN_EXCEPTION_FILE_NOT_FOUND
				|| sResourceKey == DESIGN_EXCEPTION_FILE_FORMAT_NOT_SUPPORT
				|| sResourceKey == DESIGN_EXCEPTION_UNDEFINED_PROPERTY
				|| sResourceKey == DESIGN_EXCEPTION_PROPERTY_IS_NOT_ENCRYPTABLE
				|| sResourceKey == DESIGN_EXCEPTION_UNSUPPORTED_VERSION
				|| sResourceKey == DESIGN_EXCEPTION_VIRTUAL_PARENT_NOT_FOUND )
		{
			assert oaMessageArguments.length == 1;
			return ModelMessages.getMessage( sResourceKey, oaMessageArguments );