Bug 121111 Bad event handler class name does not cause an error
Open a report design, open any Data Set's Property editor. Type in an invalid Java class name for the "Event Handler Class" property, say "aaa". Preview a report that uses that Data Set. The report executes normally. No error is shown. Event handlers are an integral part of a report design, and if a script handler class is not found, or if the handler throws a runtime exception, Report Engine should either stop the report execution, or show the error message in the generated report. (Tested with the 2005-12-15 nightly build)
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
import org.eclipse.birt.data.engine.api.DataEngine;
import org.eclipse.birt.data.engine.api.IPreparedQuery;
import org.eclipse.birt.data.engine.api.IQueryResults;
import org.eclipse.birt.data.engine.api.IResultIterator;
import org.eclipse.birt.data.engine.api.querydefn.GroupDefinition;
import org.eclipse.birt.data.engine.api.querydefn.InputParameterBinding;
import org.eclipse.birt.data.engine.api.querydefn.QueryDefinition;
import org.eclipse.birt.data.engine.api.querydefn.ScriptExpression;
import org.eclipse.birt.report.engine.adapter.ModelDteApiAdapter;
import org.eclipse.birt.report.engine.api.EngineException;
import org.eclipse.birt.report.engine.api.IGetParameterDefinitionTask;
import org.eclipse.birt.report.engine.api.IParameterDefnBase;
import org.eclipse.birt.report.engine.api.IParameterSelectionChoice;
import org.eclipse.birt.report.engine.api.IReportRunnable;
import org.eclipse.birt.report.engine.api.ReportEngine;
import org.eclipse.birt.report.model.api.CascadingParameterGroupHandle;
import org.eclipse.birt.report.model.api.DataSetHandle;
import org.eclipse.birt.report.model.api.DataSourceHandle;
import org.eclipse.birt.report.model.api.ParamBindingHandle;
import org.eclipse.birt.report.model.api.ParameterGroupHandle;
import org.eclipse.birt.report.model.api.ParameterHandle;
import org.eclipse.birt.report.model.api.ReportDesignHandle;
import org.eclipse.birt.report.model.api.ScalarParameterHandle;
import org.eclipse.birt.report.model.api.SelectionChoiceHandle;
import org.eclipse.birt.report.model.api.SlotHandle;
import org.eclipse.birt.report.model.api.elements.DesignChoiceConstants;
/**
 * Defines an engine task that handles parameter definition retrieval
 */
public class GetParameterDefinitionTask extends EngineTask implements