Bug 175637 NPE when input parameter to document in ReportRunner.[0600]
Description: NPE when input parameter to document in ReportRunner. Build number:2.2.0.v200702251739-M5-rebuild Steps to reproduce: 1. Unzip birt runtime package to get ReportEngine folder. 2. Copy attached report into the folder. 3. Run command as genReport -m run -p "sample=sample" -p "Cust=200" test1.rptdesign genReport -m render -p "sample=sample" -p "Cust=200" test1.rptdocument Expected result: In the second command, document need no parameters input, so just ignore the input parameter values. Actual result: NPE is thrown out. Error log: SEVERE: exception in parsing the paramters java.lang.NullPointerException at org.eclipse.birt.report.engine.api.ReportRunner.renderReport(ReportRu nner.java:304) at org.eclipse.birt.report.engine.api.ReportRunner.execute(ReportRunner. java:157) at org.eclipse.birt.report.engine.api.ReportRunner.main(ReportRunner.jav a:117)
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/ReportRunner.java
locale = results.getOptionValue( 'l' );
		}
		if ( results.hasOption( 'e' ) )
		{
			encoding = results.getOptionValue( 'e' );
		}
		parseParameterOptions( );
	}
	/**
	 * parse the arguments.
	 * 
	 * -html html-file-name -pdf pdf-file-name -fo fo-file-name -l locale-name
	 * -p page-number design-file-name
	 * 
	 * @param args -
	 *            arguments
	 */
	protected void parseOptions( )
	{
		source = args[args.length - 1];
		args[args.length - 1] = ""; 
		try
		{
			Options option = new Options( );
			/*
			 * Add these basic argument into instance option
			 */
			option.addOption( "m", "mode", true, "RunAndRender" );
			option.addOption( "o", "output", true, "" ); 
			option.addOption( "f", "format", true, "html" );