Bug 201205 Exception occurs in dataset preview when IN filter contains a blank value[0802]
Description: Exception occurs in dataset preview when IN filter contains a blank value[0802] Build number: 2.2.1.v20070827-0630 Steps to reproduce: 1, New a sampleDB customer dataset 2, New a filter and operator is IN 3, Specify a blank value and add 4, Preview in dataset Expected result: The preview should be successful and no exception Actual result: Exception occurs Error log: org.eclipse.birt.report.designer.core.runtime.GUIException: Caused by java.lang.reflect.InvocationTargetException. at org.eclipse.birt.report.designer.core.runtime.GUIException.createGUIException(GUIException.java:76) at org.eclipse.birt.report.designer.internal.ui.util.ExceptionHandler.handle(ExceptionHandler.java:169) at org.eclipse.birt.report.designer.internal.ui.util.ExceptionHandler.handle(ExceptionHandler.java:150) at org.eclipse.birt.report.designer.internal.ui.util.ExceptionHandler.handle(ExceptionHandler.java:89) at org.eclipse.birt.report.designer.data.ui.dataset.ResultSetPreviewPage.updateResultsProcess(ResultSetPreviewPage.java:515) at org.eclipse.birt.report.designer.data.ui.dataset.ResultSetPreviewPage.runUpdateResults(ResultSetPreviewPage.java:274) at org.eclipse.birt.report.designer.data.ui.dataset.ResultSetPreviewPage.access$1(ResultSetPreviewPage.java:244) at org.eclipse.birt.report.designer.data.ui.dataset.ResultSetPreviewPage$4.runInUIThread(ResultSetPreviewPage.java:237)
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/impl/ScriptEvalTest.java
new Object[] {"aaab", "/A/i", Boolean.TRUE },
			new Object[] {"aaab", "//m", Boolean.TRUE },
			new Object[] {"aaab", "/\\w*B/i", Boolean.TRUE },
			
			
			new Object[] {"aaab", "[a", null },
			new Object[] {"aaab", "/a/p", null },
		};
		for ( int i = 0; i < cases.length; i++ )
		{
			Object[] c = (Object[])cases[i];
			String str = (String) c[0];
			String pattern = (String) c[1];
			Boolean expected = (Boolean) c[2];
			try
			{
				Object result = ScriptEvalUtil.evalConditionalExpr( 
					str, IConditionalExpression.OP_MATCH, pattern, null );
				assertEquals( result, expected );
			}
			catch (DataException e)
			{
				assertNull( expected );
			}
		}
	}
	
	/**
	 * @throws DataException
	 */