Bug 180408 After correct the expression of dimension, NPE throws out and the x-tab can not be previewed anymore[1102]
Description: After correct the expression of level, NPE throws out and the x-tab can not be previewed anymore[1102] Build number: 2.2.0.v20070402-0630 Steps to reproduce: 1, New a cube with two report design 2, New a x-tab using the cube 3, Change the level's name to CUSTOMER_REGION1 4, Preview the report 5, Correct the expression in x-tab: dimension["Customer"]["CUSTOMER_REGION1"] 6, Preview the report Expected result: After step4, the report can not be previewed but not shown up the NPE message After step5 and 6, the report can be previewed successfully Actual result: After step4, NPE pops up After step6, NPE still pops up Error log:
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetIterator.java
package org.eclipse.birt.report.data.adapter.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.birt.core.data.DataType;
import org.eclipse.birt.core.data.ExpressionUtil;
import org.eclipse.birt.core.exception.BirtException;
import org.eclipse.birt.data.engine.api.IResultIterator;
import org.eclipse.birt.data.engine.api.IResultMetaData;
import org.eclipse.birt.data.engine.api.querydefn.GroupDefinition;
import org.eclipse.birt.data.engine.api.querydefn.QueryDefinition;
import org.eclipse.birt.data.engine.api.querydefn.ScriptExpression;
import org.eclipse.birt.data.engine.olap.api.cube.IDatasetIterator;
import org.eclipse.birt.report.data.adapter.api.DataRequestSession;
import org.eclipse.birt.report.model.api.LevelAttributeHandle;
import org.eclipse.birt.report.model.api.olap.CubeHandle;
import org.eclipse.birt.report.model.api.olap.DimensionHandle;
import org.eclipse.birt.report.model.api.olap.MeasureGroupHandle;
import org.eclipse.birt.report.model.api.olap.MeasureHandle;
import org.eclipse.birt.report.model.api.olap.TabularCubeHandle;
import org.eclipse.birt.report.model.api.olap.TabularDimensionHandle;
import org.eclipse.birt.report.model.api.olap.TabularHierarchyHandle;
import org.eclipse.birt.report.model.api.olap.TabularLevelHandle;
/**
 * This is an implementation of IDatasetIterator interface.
 *
 */
public class DataSetIterator implements IDatasetIterator