Report JSON whit subreport

[quickdunk]

I did a clean installation of JRE 7, iReport 4.5.1 in a refresh instalation of Windows XP SP3. I created a new report with JSON Datasource. When I run this report without sub-report, everything is fine, but when I run with a sub-datasource, this exception was throws java.lang.ClassNotFoundException: net.sf.jasperreports.engine.data.JsonDataSource....AND THIS IS STRANGE BECAUSE I RUN IN THE IREPORT DESIGNER.

The subreport expresion is:

new net.sf.jasperreports.engine.data.JsonDataSource(new java.net.URL($P{net.sf.jasperreports.json.source}).openStream(),"response.tickets")

I use java.net.URL() because this json is generate by PHP dynamicly.

This is a bug? or Miss configuration?

 

sorry for my bad english

Code:

Error filling print... Error evaluating expression :      Source text : new net.sf.jasperreports.engine.data.JsonDataSource(new java.net.URL($P{net.sf.jasperreports.json.source}).openStream(),"response.tickets") net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression :      Source text : new net.sf.jasperreports.engine.data.JsonDataSource(new java.net.URL($P{net.sf.jasperreports.json.source}).openStream(),"response.tickets")      at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:203)      at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:591)      at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:559)      at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:876)      at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateSubreport(JRFillSubreport.java:356)      at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluate(JRFillSubreport.java:275)      at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:257)      at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:473)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2021)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:755)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:265)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:128)      at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:836)      at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:118)      at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:435)      at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:271)      at com.jaspersoft.ireport.designer.compiler.IReportCompiler.run(IReportCompiler.java:991)      at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)      at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)  Caused by: java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/data/JsonDataSource      at EXPRESO_MY_DAYLY_CASHBOX_1333037777888_3538.evaluate(EXPRESO_MY_DAYLY_CASHBOX_1333037777888_3538:232)      at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:190)      ... 18 more  Caused by: java.lang.ClassNotFoundException: net.sf.jasperreports.engine.data.JsonDataSource      at java.lang.ClassLoader.findClass(Unknown Source)      at java.lang.ClassLoader.loadClass(Unknown Source)      at java.lang.ClassLoader.loadClass(Unknown Source)      ... 20 more 

[quickdunk]

No body try this???