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
*/
	public ParameterAttributeBean getParameterBean( )
	{
		return parameterBean;
	}
	/**
	 * @param parameterBean
	 *            The parameterBean to set.
	 */
	public void setParameterBean( ParameterAttributeBean parameterBean )
	{
		this.parameterBean = parameterBean;
	}
	/**
	 * @return Returns the reportTitle.
	 */
	public String getReportTitle( ) throws ReportServiceException
	{
		return reportTitle;
	}
	/**
	 * @return the reportPage
	 */
	public int getReportPage( )
	{
		return reportPage;
	}
	/**
	 * @return the reportPageRange
	 */