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Hi, When i run "net.sf.jasperreports.ant.JRAntCompileTask" ant task, I am getting the following error in linux machine. It works in windows machine. -------------------------------------------------------------------------------------------- org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationExce ption: No suitable Log constructor [Ljava.lang.Class;@b5dac4 for org.apache.comm ons.logging.impl.Log4JLogger -------------------------------------------------------------------------------------------- I am using jasperreports-javaflow-3.0.0.jar Can someone give some pointers to resolve this issue? Thanks in Advance, Raffi

Hi All, Is it possible to populate the data from the bottom to top in a report. For Example in a report, I have the following 3 rows. Cell-1,1 Cell-1,2 Cell-1,3 Cell-2,1 Cell-2,2 Cell-2,3 Cell-3,1 Cell-3,2 Cell3,3 I wish to populate from the bottom to top. I mean, first I want to push the data (Cell-3,1 Cell-3,2 Cell3,3) , then (Cell-2,1 Cell-2,2 Cell-2,3) and then (Cell-1,1 Cell-1,2 Cell-1,3). And the result I want to displayed in the order as mentioned below: Cell-1,1 Cell-1,2 Cell-1,3 Cell-2,1 Cell-2,2 Cell-2,3 Cell-3,1 Cell-3,2 Cell3,3 Is it possible to set any parameter in teh Jasper Engine to achieve this kind of behaviour. Thanks, Raffi

I included the src of the jasperreports in Eclipse and debugged. Looks like it has some problem printing the subreport in the summary. Don't know whether it was a Java Continuation problem, or Virtualizer problem. Just before the StackFlow error, I got the following stack Code: JRVerticalFiller.addPage(boolean) line: 1182 JRVerticalFiller.fillTitle() line: 285 JRVerticalFiller.fillReportStart() line: 224 JRVerticalFiller.fillReport() line: 113 JRVerticalFiller(JRBaseFiller).fill(Map) line: 767 JRVerticalFiller(JRBaseFiller).fill(Map, JRDataSource) line: 690 JRFillSubreport.fillSubreport() line: 515 JRContinuationSubreportRunner(JRSubreportRunnable).run() line: 63 StackRecorder.execute(Object) line: 95 Continuation.continueWith(Continuation, Object) line: 170 Continuation.startWith(Runnable, Object) line: 129 Continuation.startWith(Runnable) line: 102 JRContinuationSubreportRunner.start() line: 57 JRFillSubreport.prepare(int, boolean) line: 589 JRFillBand(JRFillElementContainer).prepareElements(int, boolean) line: 343 JRFillBand.fill(int, boolean) line: 323 JRFillBand.fill(int) line: 282 JRVerticalFiller.fillSummarySamePage() line: 888 JRVerticalFiller.fillSummary() line: 820 After this, in JRVerticalFiller.addPage() - Line 1185, the code is suspending the Continuation Subreport Runner. I could not understand why it is suspending... After that See the StackOverFlow Error. Does anyone use Javaflow and Virtualizer together and have Subreport in the Summary band? Any help is really appreciated.

Check out the dtd. They are available in teh directory: <Jasperreports-x.x.x/src/net/sf/jasperreports/engine/dtds

Looks like some classpath Issue, make sure you place the jasperreports jar in classpath when you are comiling and running the code...

Are you sure you placed that properties file in classpath? If you are running a web application, place the "jasper.properties" in WEB-INF/classes directory.

If your dataset is large, you should not go for JRBeanCollectionDatasource. Instead implement the JRDataSource, fetch the data in chunks/pages and return the data through next() and getFieldValue() APIs.

My Environment: Jasper Reports - JavaFlow 1.3.2 JDK 1.6

When I ran the report with debug log level, I found that the JasperReports engine is ending up StackOverFlow condition. Code: Caused by: net.sf.jasperreports.engine.JRRuntimeException: java.lang.StackOverflowError at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:614) at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:343) at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:323) at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:282) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummarySamePage(JRVerticalFiller.java:888) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummary(JRVerticalFiller.java:820) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportEnd(JRVerticalFiller.java:263) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:120) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:767) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:690) at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:89) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:601) at com.lucent.qip.reports.PagedDataReportGenerator.fillReport(PagedDataReportGenerator.java:47) at com.lucent.qip.reports.JasperReportGenerator.generateReport(JasperReportGenerator.java:273) at com.lucent.qip.reports.JasperReportFactory.generateReport(JasperReportFactory.java:36) at com.lucent.qip.service.impl.ReportsServiceImpl.generateReport(ReportsServiceImpl.java:214) ... 95 more Caused by: java.lang.StackOverflowError at java.util.HashMap$EntryIterator.<init>(HashMap.java:831) at java.util.HashMap$EntryIterator.<init>(HashMap.java:831) at java.util.HashMap.newEntryIterator(HashMap.java:845) at java.util.HashMap$EntrySet.iterator(HashMap.java:949) at java.util.AbstractMap.hashCode(AbstractMap.java:459) HashMap and AbstractMap calls goes into infinitive recusrsive loop. If I remove the subreports in the summary, the report is coming up. Can't I populate JRDataSource implementation using a scriptlet and use that datasource for the chart subreport in the summary?

Hi, In a jasperreport, I observed I was using isIgnorePagination is set to true. I have removed that, the report is hanging after the JRDataSource calls (next()) gets complete. I use Scriptlet in this report to generate the data for the Pie Chart which is printed in the Summary Page. If I add the isIgnorePagination="true", it is working fine. Since I use Virtualizer, I do not want to set the isIgnorePagination attribute to true. Any clues, why the report is hanging when I set the isIgnorePagination attribute to true?

Ar eyou setting ignorePagination ? Code: <jasperReport name="IPv4SubnetInfo_pdf" columnCount="1" printOrder="Vertical" orientation="Landscape" pageWidth="1060" pageHeight="595" columnWidth="800" columnSpacing="0" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" whenNoDataType="AllSectionsNoDetail" scriptletClass="com.lucent.qip.reports.IPv4SubnetSummaryScriptlet" isTitleNewPage="false" isSummaryNewPage="false" resourceBundle="catalog/reportsCatalog" isIgnorePagination="true"> See the last line.... You should not set that when you want to use virtualizer.

I never exported to Excel. for the PDF, I do the following and it works. Code: //Setting Virtualizer for the reports JRSwapFile swapFile = new JRSwapFile(fileDir, 2048, 2048); JRSwapFileVirtualizer virtualizer = new JRSwapFileVirtualizer(2, swapFile, true); finalReportParameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer); //Export JasperExportManager.exportReportToPdfFile(filedReport, outputFileName);

Do not set the following parameter to true. IS_ONE_PAGE_PER_SHEET If you set this parameter to true, I think jasper engine thinks that all the data should come in one page. If you set something like that, the effect of pagination will not come into picture since there are no pages. If that does not work, Can you try exporting the data to PDF or HTML?

Hi Lucian, Thanks for the reply. I think, I'll not go for the <SortField> right now.

Hi, I have implemented JasperReports with JRDataSource and virtualizer for few huge reports. It takes almost 2 hours right now. I cannot get the sorted data from the service layer in a report and I would like to use the <SortField> element of the JasperReports. Will that have much impact on the report performance? How does the SortField work with virualizer? Does it Sort the items evertime it receives a row/record or at the end of the report data? Any idea about the impact of this on the performance of the report?