Hi,<br />
<br />
I'm using the BIRT 4.2.2 report engine. One of the dataset contains the computed columns, if i try to generate the report i'm getting the below error .<br />
<br />
<pre class='_prettyXprint _lang-auto _linenums:0'>org.eclipse.birt.report.engine.api.EngineException: Error happened while running the report.
at org.eclipse.birt.report.engine.api.impl.EngineTask.handleFatalExceptions(EngineTask.java:2329)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:191)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:77)
at com.ags.mhlwreports.generator.BirtReportGenerator.runReport(BirtReportGenerator.java:61)
at com.ags.mhlwreports.generator.pdf.PdfReportGenerator.generatePDFReport(PdfReportGenerator.java:358)
at com.ags.mhlwreports.generator.pdf.PdfReportGenerator.generateReport(PdfReportGenerator.java:281)
at com.ags.mhlwreports.generator.pdf.PdfReportGenerator.main(PdfReportGenerator.java:704)
Caused by: java.lang.NullPointerException
at org.eclipse.birt.data.engine.executor.aggregation.AggregationHelper.populateAggregations(AggregationHelper.java:104)
at org.eclipse.birt.data.engine.executor.aggregation.AggregationHelper.<init>(AggregationHelper.java:86)
at org.eclipse.birt.data.engine.executor.transform.pass.DataSetProcessUtil.populateAggrCCs(DataSetProcessUtil.java:213)
at org.eclipse.birt.data.engine.executor.transform.pass.DataSetProcessUtil.populateDataSet(DataSetProcessUtil.java:111)
at org.eclipse.birt.data.engine.executor.transform.pass.DataSetProcessUtil.doPopulate(DataSetProcessUtil.java:83)
at org.eclipse.birt.data.engine.executor.transform.pass.PassManager.populateDataSet(PassManager.java:242)
at org.eclipse.birt.data.engine.executor.transform.pass.PassManager.prepareDataSetResultSet(PassManager.java:98)
at org.eclipse.birt.data.engine.executor.transform.pass.PassManager.populateDataSetResultSet(PassManager.java:80)
at org.eclipse.birt.data.engine.executor.transform.ResultSetPopulator.cacheDataSet(ResultSetPopulator.java:223)
at org.eclipse.birt.data.engine.executor.transform.CachedResultSet.<init>(CachedResultSet.java:142)
at org.eclipse.birt.data.engine.executor.DataSourceQuery.execute(DataSourceQuery.java:1053)
at org.eclipse.birt.data.engine.impl.PreparedOdaDSQuery$OdaDSQueryExecutor.executeOdiQuery(PreparedOdaDSQuery.java:445)
at org.eclipse.birt.data.engine.impl.QueryExecutor.execute(QueryExecutor.java:1208)
at org.eclipse.birt.data.engine.impl.ServiceForQueryResults.executeQuery(ServiceForQueryResults.java:232)
at org.eclipse.birt.data.engine.impl.QueryResults.getResultIterator(QueryResults.java:178)
at org.eclipse.birt.report.engine.data.dte.QueryResultSet.<init>(QueryResultSet.java:115)
at org.eclipse.birt.report.engine.data.dte.DteDataEngine.doExecuteQuery(DteDataEngine.java:176)
at org.eclipse.birt.report.engine.data.dte.AbstractDataEngine.execute(AbstractDataEngine.java:267)
at org.eclipse.birt.report.engine.executor.ExecutionContext.executeQuery(ExecutionContext.java:1941)
at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:80)
at org.eclipse.birt.report.engine.executor.TableItemExecutor.execute(TableItemExecutor.java:62)
at org.eclipse.birt.report.engine.internal.executor.dup.SuppressDuplicateItemExecutor.execute(SuppressDuplicateItemExecutor.java:43)
at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportItemExecutor.execute(WrappedReportItemExecutor.java:46)
at org.eclipse.birt.report.engine.internal.executor.l18n.LocalizedReportItemExecutor.execute(LocalizedReportItemExecutor.java:34)
at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:65)
at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26)
at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140)
at org.eclipse.birt.report.engine.layout.html.HTMLInlineStackingLM.resumeLayout(HTMLInlineStackingLM.java:111)
at org.eclipse.birt.report.engine.layout.html.HTMLInlineStackingLM.layoutNodes(HTMLInlineStackingLM.java:160)
at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26)
at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140)
at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:70)
at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26)
at org.eclipse.birt.report.engine.layout.html.HTMLTableBandLM.layoutChildren(HTMLTableBandLM.java:67)
at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140)
at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:70)
at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26)
at org.eclipse.birt.report.engine.layout.html.HTMLTableLM.layoutChildren(HTMLTableLM.java:132)
at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140)
at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:48)
at org.eclipse.birt.report.engine.layout.html.HTMLPageLM.layout(HTMLPageLM.java:92)
at org.eclipse.birt.report.engine.layout.html.HTMLReportLayoutEngine.layout(HTMLReportLayoutEngine.java:100)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:181)
... 5 more</pre>
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<br />
can anybody tell me how can i overcome this problem.. I'm also attaching the design file<br />
<br />
Thank u ..
