Bug 116706 Bad Class Cast in IDEReportEditor.java
So I'm trying to open a report with BIRT/Eclipse API using the BIRT 2.0 nightly build code (as of 11/16/2005). the file IDEReportEditor.java method private IFile getFile( IEditorInput input ) { return ( (ReportFileEditorInput) input ).getFile( ); } However, input can be ReportEditorInput which is also an IEditorInput (to support reports found outside projects and workspaces) which doesn't even have a getFile() method on it. This causes a deeply nested exception that causes the report desinger to not be able to show a report that might be physically located outside a workspace.
UI/org.eclipse.birt.report.designer.ui.ide/src/org/eclipse/birt/report/designer/ui/editors/IDEMultiPageReportEditor.java
{
		try
		{
			clearMarkers();
		}
		catch ( CoreException e )
		{
			
			e.printStackTrace();
		}
		super.dispose( );
	}
	
	/**
	 * Deletes all markers
	 * 
	 * @throws CoreException
	 */
	protected void clearMarkers( ) throws CoreException
	{
		IResource resource = getFile( getEditorInput( ) );
		if ( resource.exists( ) )
		{
			resource.deleteMarkers( IMarker.PROBLEM,
					true,
					IResource.DEPTH_ONE );
		}
	}
}