How to use lambda expression in jrxml file?

Question

I am trying to use lambda expression inside jrxml file to get values for my field.

I imported appropriate classes but it is giving me error that

Answer 1

If you're using the Eclipse JDT compiler, first make sure that you have a fairly recent version.

You can get 4.5.1 from Maven for instance, then add the following properties to your jasperreports.properties file:

org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
org.eclipse.jdt.core.compiler.compliance=1.8
org.eclipse.jdt.core.compiler.source=1.8