Bug 153537 Event Handler didn't work properly in masterpage
Steps to reproduce: 1.Run the attached report in Web Viewer, it works well 2.Click "print" to convert the output in PDF Expected result: Masterpage has the same view in Web Viewer and PDF Actual result: Masterpage didn't get right view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
private List onPrepareErrors = new ArrayList( );
	/**
	 * Flag to indicate whether task is canceled.
	 */
	private boolean isCancelled = false;
	
	/**
	 * utilities used in the report execution.
	 */
	private HashMap stringFormatters = new HashMap( );
	private HashMap numberFormatters = new HashMap( );
	private HashMap dateFormatters = new HashMap( );
	private ClassLoader applicationClassLoader;
	
	private int MAX_ERRORS = 100;
	/**
	 * 
	 */
	private IDocArchiveReader dataSource;
	
	/**
	 * A list of reportItems which are current openning. 
	 */
	private List openningContents = new ArrayList( );
	public ExecutionContext()
	{
		this(null, -1);
	}
	/**
	 * create a new context. Call close to finish using the execution context