Jasper String Display Issue

[stevelackey]

I have a report that has been working fine for a couple of months.  But a recent data load caused it to break.  I get a Java stack trace, part of which is this...

 

Exception in thread "main" net.sf.jasperreports.engine.JRRuntimeException: java.lang.StackOverflowError
    at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:710)
    at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:329)
    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:419)
    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:378)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2018)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:757)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportContent(JRVerticalFiller.java:289)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:131)
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:938)
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:841)
    at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:58)
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:417)

 

I've isolated the issue down the one line in my jrxml that is causing the problem:

<textFieldExpression class="java.lang.String"><![CDATA[$F{FTTH_CO_NME}]]></textFieldExpression>

In looking at some of the new data that was recently loaded, I see strings with Scandinavian charcters (e.g., a "y" with two dots above it) that I suspect are causing the problem.

 

Does anybody have any suggestions on how to deal with this?  Thanks.

[lucianc]

Could you upload a report (with text included) that has this problem?  Is that the whole exception stacktrace?

Regards,

Lucian

[stevelackey]

I've attached a copy of the report (actually a subreport).

No that's not the entire stack trace.  I'll include a little more here:

Exception in thread "main" net.sf.jasperreports.engine.JRRuntimeException: java.lang.StackOverflowError
    at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:710)
    at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:329)
    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:419)
    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:378)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2018)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:757)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportContent(JRVerticalFiller.java:289)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:131)
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:938)
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:841)
    at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:58)
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:417)
    at com.lfg.jasper.JasperTest.main(JasperTest.java:74)
Caused by: java.lang.StackOverflowError
    at java.util.HashMap$EntryIterator.<init>(HashMap.java:832)
    at java.util.HashMap$EntryIterator.<init>(HashMap.java:832)
    at java.util.HashMap.newEntryIterator(HashMap.java:846)
    at java.util.HashMap$EntrySet.iterator(HashMap.java:950)
    at java.util.AbstractMap.hashCode(AbstractMap.java:459)
    at java.util.HashMap$Entry.hashCode(HashMap.java:720)
    at java.util.AbstractMap.hashCode(AbstractMap.java:461)
    at java.util.HashMap$Entry.hashCode(HashMap.java:720)
    at java.util.AbstractMap.hashCode(AbstractMap.java:461)
    at java.util.HashMap$Entry.hashCode(HashMap.java:720)

Below this are just more calls to AbstractMap and Hashmap.

Thanks!

[lucianc]

The same error has been recently reported at http://jasperforge.org/plugins/espforum/view.php?group_id=102&forumid=103&topicid=76294.  There's a logged bug for it.

We're trying to reproduce it and understand when it happens.  Any information that would help is welcomed.

Regards,

Lucian

[rkm258]

Hi,

 

I had noticed that, whenever a subreport isn't able to fit in the same page of the main report, it does throw this exception. But sometimes i donot see this happening.

I'am not exactly sure why, this happens. We are using two production servers, and this happens randomly on one of them. So I think my server resources are good, will investigate further.

 

Thanks

Ram