JasperReports 4.5.1 using JRE 1.6 method in Report Virtualization

[jtotaf]

We've just upgraded to JasperReports 4.5.1.   I'm now getting a NoSuchMethodError when trying to create an 108,000 line text report using JRSwapFileVirtualizer and exporting it using JRCsvExporter.

It appears that the VirtualizableElementList class is using a binarySearch method only available in JRE 1.6.

According to the Ultimate guide JRE 1.3 is all that is required.  Our platform uses JRE 1.5 and cannot be upgraded at this time.

Can you supply a patch or a workaround.

Here is the stack trace:
Exception in thread "main" java.lang.NoSuchMethodError: java.util.Arrays.binaryS
earch([iIII)I
        at net.sf.jasperreports.engine.base.ElementsBlockList.blockIndex(Virtual
izableElementList.java:711)
        at net.sf.jasperreports.engine.base.ElementsBlockList.get(VirtualizableE
lementList.java:586)
        at net.sf.jasperreports.engine.base.VirtualizableElementList.get(Virtual
izableElementList.java:96)
        at net.sf.jasperreports.engine.base.VirtualizableElementList.get(Virtual
izableElementList.java:54)
        at net.sf.jasperreports.engine.export.JRGridLayout.createWrappers(JRGrid
Layout.java:958)
        at net.sf.jasperreports.engine.export.JRGridLayout.<init>(JRGridLayout.j
ava:143)
        at net.sf.jasperreports.engine.export.JRCsvExporter.exportPage(JRCsvExpo
rter.java:53)
        at net.sf.jasperreports.engine.export.JRAbstractCsvExporter.exportReport
ToWriter(JRAbstractCsvExporter.java:240)
        at net.sf.jasperreports.engine.export.JRAbstractCsvExporter.exportReport
(JRAbstractCsvExporter.java:187) 

Thanks!

[teodord]

Hi,

 

Our documentation needs to be updated.

We are going to make it more clear to our users that we are going to keep compatibility with JRE 1.6.

Note that 1.5 has reached End Of Life years ago. If you still need to use it, then you'll need to use old JR as well, or adapt newer versions to 1.5. on your own.

"Java SE 5.0 is in its Java Technology End of Life (EOL) transition period. The EOL transition period began April 8th, 2007 and will complete October 8th, 2009, when Java SE 5.0 will have reached its End of Service Life (EOSL)."

 

Thank you,

Teodor

 

[jtotaf]

Thanks Teodor for your prompt response!

Could you tell me the last JasperReport  release that is fully compatible with JRE 1.5.

Thanks again!

 

[jtotaf]

It turns out to be relatively easy to create a JRE 1.5 compatible version of the JasperReports 4.5.1 library.  I've created the jar file if anyone is interested.

[jawwadfarooq1]

@jtotaf .. please share the custom jar of 4.5.1 compatible with JRE 1.5

[jtotaf]

Here you go!

Please note that this comes with no guarantee of any kind either implied or explicit.

The files I changed were HibernateDataAdapterService.java, SpringHibernateDataAdapterService.java, VirtualizableElementList.java and XmlaDataAdapterService.java.

All the best!

[selin.ebeci]

Hi Jtotaf, can you please share the jar with me as well? Many Thanks in advance!