Bug 168318 [regression]Print doesn't work correctly when preview attached file through external browser[00]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
{
		private static String[] classPathes = new String[]{
				EngineConstants.WEBAPP_CLASSPATH_KEY,
				EngineConstants.PROJECT_CLASSPATH_KEY,
				EngineConstants.WORKSPACE_CLASSPATH_KEY};
		private ExecutionContext context = null;
		private ClassLoader loader = null;
		public ApplicationClassLoader( ExecutionContext context )
		{
			this.context = context;
		}
		public Class loadClass( String className )
				throws ClassNotFoundException
		{
			try
			{
				return Class.forName( className );
			}
			catch ( ClassNotFoundException ex )
			{
				if ( loader == null )
				{
					createWrappedClassLoaders( );