Bug 163749 Import BIRT runtime package to wtp will leave old birt files.
Description: Import BIRT runtime package to wtp will leave old birt files. Steps to reproduce: Prepare two birt builds. 1. Create a new BIRT Web Project with one build. 2. Use another build to open the same workspace, select the project and click Business Inteligent and Reporting Tools->Import BIRT runtime component. Expected result: Old birt runtime package will be replaced with new runtime package. Actual result: Old birt plugins were kept and new birt jar files are imported. e.g. org.eclipse.birt.report.engine_2.2.0.v20061101-0630.jar org.eclipse.birt.report.engine_2.2.0.v20061107-0635.jar
viewer/org.eclipse.birt.integration.wtp.ui/src/org/eclipse/birt/integration/wtp/ui/internal/wizards/BirtWizardUtil.java
private static void importFilesFromZip( ZipFile srcZipFile, IPath destPath,
			IProgressMonitor monitor, IOverwriteQuery query )
			throws CoreException
	{
		try
		{
			ZipFileStructureProvider structureProvider = new ZipFileStructureProvider(
					srcZipFile );
			List list = prepareFileList( structureProvider, structureProvider
					.getRoot( ), null );
			ImportOperation op = new ImportOperation( destPath,
					structureProvider.getRoot( ), structureProvider, query,
					list );
			op.run( monitor );
		}
		catch ( Exception e )
		{
			String message = srcZipFile.getName( ) + ": " + e.getMessage( ); 
			Logger.logException( e );
			throw BirtCoreException.getException( message, e );
		}
	}
	/**
	 * Prepare file list from zip file
	 * 
	 * @param structure
	 * @param entry
	 * @param list
	 * @return
	 */