I have the appropriate import statements in the code, the project builds without errors or warnings, but I get an exception at runtime. What I've tried: ...

JDK Mission Control is feckless without a Java Flight Recorder file to profile. Here are 3 easy ways you can start Java Flight Recorder in Eclipse and monitor your JVM in JMC.

Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.