Bug 211081 log4j not working with preview
I am using log4j in the scripting Database source. I place my log4j-1.2.15.jar file in the folder C:\eclipse\plugins\org.eclipse.birt. report.viewer_2.2.1.r22x_v20070920\ birt\WEB-INF\lib However when I try to preview I get an error Http Status 500. When I check the log files I see the following exceptions java.lang.NoClassDefFoundError: org/apache/log4j/Category
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
if ( file != null && file.isDirectory( ) )
		{
			String[] children = file.list( );
			for ( int i = 0; i < children.length; i++ )
			{
				if ( children[i].startsWith( PREFIX_SUB_DOC_FOLDER ) )
					deleteDir( new File( file, children[i] ) );
			}
		}
		
		file = new File( imageFolder );
		deleteDir( file );
		makeDir( imageFolder );
	}
	/**
	 * Deletes all files and subdirectories under dir. Returns true if all
	 * deletions were successful. If a deletion fails, the method stops
	 * attempting to delete and returns false.
	 */
	protected static boolean deleteDir( File dir )
	{
		if ( dir.isDirectory( ) )
		{
			String[] children = dir.list( );
			for ( int i = 0; i < children.length; i++ )
			{
				boolean success = deleteDir( new File( dir, children[i] ) );
				if ( !success )
				{
					return false;