How does JRebel work?

JRebel uses class rewriting (both ASM and Javassist) and JVM integration to version individual classes. Plus it integrates with app servers to redirect class/resource and web server lookups back to the workspace. And it also integrates with most app servers and frameworks to propagate changes to the configuration (metadata or files). That’s the short of … Read more

Redeploy alternatives to JRebel [closed]

Take a look at DCEVM, it’s a modification of the HotSpot VM that allows unlimited class redefinitions at runtime. You can add/remove fields and methods and change the super types of a class at runtime. The binaries available on the original site are limited to Java 6u25 and to early versions of Java 7. The … Read more

Intellij IDEA Java classes not auto compiling on save

UPDATED For IntelliJ IDEA 12+ releases we can build automatically the edited sources if we are using the external compiler option. The only thing needed is to check the option “Build project automatically“, located under “Compiler” settings: Also, if you would like to hot deploy, while the application is running or if you are using … Read more

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