The LogCompilation tool from OpenJDK, as-is.
JDK main-line development https://openjdk.org/projects/jdk
String interpolation library for Java
Dump classes from running JVM process.
Actionable memory analysis for JVM languages
Procyon java decompiler - Procyon is a binary star system in Canis Minor
A tool for dumping JVM information (heap dumps, thread dumps, JFRs, NMT, mallinfo()) for multiple...
Janino is a super-small, super-fast Java™ compiler.
hotspot disassembler hsdis
A simple JVM, for learning purposes
Maven plugin provides a way to load JDK and use its tools during project build
JamVM 2 + OpenJDK
Dynamic Code Evolution VM for Java 7/8
Intellij plugin that shows an object layout in memory to help optimize it. Uses OpenJDK JOL tool
Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods,...