Jump to content

  • Evaluation Time in Lists causes NullPointerException

    oh

    By oh

     Share
    CategoryBug report
    Component: 6527
    PriorityHigh
    ReproducibilityAlways
    ResolutionOpen
    SeverityCritical
    StatusNew
    Versionv6

    Using some Evaluation Time different to "now" (like "band") at Text Fields in List elements always causes a NullPointerException at runtime (independent of actual expression).

     

    java.lang.NullPointerException

    at net.sf.jasperreports.engine.fill.DelayedFillActions.addDelayedAction(DelayedFillActions.java:196)

    at net.sf.jasperreports.engine.fill.DelayedFillActions.addDelayedAction(DelayedFillActions.java:150)

    at net.sf.jasperreports.engine.fill.BaseReportFiller.addBoundElement(BaseReportFiller.java:802)

    at net.sf.jasperreports.engine.fill.JRBaseFiller.addBoundElement(JRBaseFiller.java:1539)

    at net.sf.jasperreports.engine.fill.JRBaseFiller.addBoundElement(JRBaseFiller.java:1530)

    at net.sf.jasperreports.engine.fill.JRFillTextField.fill(JRFillTextField.java:924)

    at net.sf.jasperreports.engine.fill.JRFillElementContainer.fillElements(JRFillElementContainer.java:1040)

    at net.sf.jasperreports.components.list.VerticalFillList.fillContents(VerticalFillList.java:166)

    at net.sf.jasperreports.components.list.VerticalFillList.prepare(VerticalFillList.java:111)

    at net.sf.jasperreports.engine.fill.JRFillComponentElement.prepare(JRFillComponentElement.java:152)

    at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:542)

    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:453)

    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:428)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillTitle(JRVerticalFiller.java:327)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:258)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:110)

    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:621)

    at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFill.run(BaseFillHandle.java:135)

    at java.base/java.lang.Thread.run(Thread.java:834)

     

     

    The same setup with a Table element works as expected, so this is currently a workaround.

     

    Simple example report is attached.

     

     

    Some background info: The return value (like a sum) of a nested List in List should be displayed at the next higher level. Using default evaluation time "now" leads only to "null" being displayed. Evaluation type "band" should display the correct value after nested list is completed. Works as intended with subreports or table elements.

    Attachments: evaluationtimeexception.jrxml
     Share
    Go to bugs

    User Feedback

    Recommended Comments

    oh

    The same situation still creates a null pointer exception, but stack trace is slightly different:

     

    java.lang.NullPointerException

    at net.sf.jasperreports.engine.fill.JRFillElement.autogetVariableEvaluationTime(JRFillElement.java:1416)

    at net.sf.jasperreports.engine.fill.JRFillElement.collectDelayedEvaluations(JRFillElement.java:1335)

    at net.sf.jasperreports.engine.fill.JRFillTextField.collectDelayedEvaluations(JRFillTextField.java:1085)

    at net.sf.jasperreports.engine.fill.JRFillElement.initDelayedEvaluations(JRFillElement.java:1266)

    at net.sf.jasperreports.engine.fill.JRFillTextField.evaluate(JRFillTextField.java:528)

    at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:383)

    at net.sf.jasperreports.components.list.FillListContents.evaluateContents(FillListContents.java:85)

    at net.sf.jasperreports.components.list.VerticalFillList.prepare(VerticalFillList.java:110)

    at net.sf.jasperreports.engine.fill.JRFillComponentElement.prepare(JRFillComponentElement.java:152)

    at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:542)

    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:453)

    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:428)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2602)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:825)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:266)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:110)

    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:621)

    at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFill.run(BaseFillHandle.java:135)

    at java.base/java.lang.Thread.run(Unknown Source)

     

     

    Wheras Line 1416 in JRFillElement.java is

    band.isNowEvaluationTime(evaluationTime)

     

    Seems like object variable "band" is never assigned to subelements within lists and thus null, causing the NullPointerException.

     

    Link to comment
    Share on other sites

×
×
  • Create New...

© 2023 Cloud Software Group,
Inc. All rights reserved

Products

Explore