jvm-internals

3 Posts

Filter Java Stack Traces: Reflection and Proxy Frames

Filter a Java stack trace without hiding the bug: what reflection, proxy and interceptor frames mean, InvocationTargetException decoded, and how to cut noise.

StackWalker in Java: Walk the Call Stack Without the Cost

StackWalker Java (9+) walks the call stack lazily, so you pay for the frames you read. How it works, its three options, and how it compares to getStackTrace.

Strange Java Stack Frames: lambda$0, $1, init and Proxies

A lambda$main$0 stack trace, access$000, <init>, $Proxy0: what odd frame names in a Java stack trace mean, where javac puts them, and how to read past them.