Bug 173836 NPE was thrown when click "Preview " button quickly twice[00]
NPE was thrown when click "Preview " button quickly twice[00] Build number: 2.2.0.v20070212-0630 Steps to reproduce: 1.open attached report 2.click "Preview" button quickly twice Expected result: Report can be previewed properly Actual result: NPE was thrown in second preview Error log: see screen shot
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/BaseAttributeBean.java
/**
	 * Report design name.
	 */
	protected String reportDesignName = null;
	/**
	 * Report document name.
	 */
	protected String reportDocumentName = null;
	/**
	 * Report title.
	 */
	protected String reportTitle = null;
	/**
	 * Report page number.
	 */
	protected int reportPage;
	/**
	 * Report page range.
	 */
	protected String reportPageRange;
	/**
	 * Current locale.
	 */
	protected Locale locale = null;
	/**
	 * Enable master page content.
	 */
	protected boolean masterPageContent = true;
	/**
	 * In designer context.