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I have this error when I try to use subreport with a JsonDatasource in my iReport 4.5.1 Window:
java.lang.ClassNotFoundException: net.sf.jasperreports.engine.data.JsonDataSource
I don’t understand why…
The subreport expresion is
new net.sf.jasperreports.engine.data.JsonDataSource(new java.net.URL($P{net.sf.jasperreports.json.source}).openStream(),"response.tickets")
This is the full text Exception click_here
How I can to resolve this Exception?
I don’t use iReport 4.5.1 but I managed to solve the same problem on 4.6.0 platform.
iReport do not include all jasperreports libraries by default, I found that it includes only:
All you have to do is adding the jasperreports json library into the classpath by clicking the menu tools/options, then in the ireport section clicking on the classpath tabber.
Then click “Add Jar” button and browse to add the missing jar from \iReport-4.6.0\ireport\modules\ext\jasperreports-json.jar
I hope it’s not too late…