Trouble enabling lambda support


I'm using JasperStudio 6.6.0 on Linux. I'm having trouble getting lambdas to be recognised. I tried adding:


to my .ini file, and have confirmed these option are present in the output of "ps -eaf". However, I still get errors like this:

net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file:
1 error(s):
1. syntax error (expression#3) at column 18 in line
  false).map(x -> x.getKey()).getClass()
    at net.sf.jasperreports.eclipse.builder.JasperReportCompiler.compileReport(

Any hints would be most welcome.

Thanks, Shaheed

srhaque's picture
Joined: Mar 16 2018 - 1:29pm
Last seen: 1 month 12 hours ago

Based on this thread I looked for what version of the org.eclipse.jdt.core.compiler I have nad it appears to be this one:


Is this 4.2.0.v20130724060447.jar recent enough? If not, I'd appreciate some guidance on how to swap a newer one in. I know how to spell Maven, but I'm not au fait with it beyond that.

srhaque - 2 months 1 week ago

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