Alternative VM for OpenJDK 8 with enhanced class redefinition


The Dynamic Code Evolution Virtual Machine (DCE VM) is a modification of the Java HotSpot VM that allows unlimited redefinition of loaded classes at runtime. The current hotswapping mechanism of the HotSpot VM allows only changing method bodies. This enhanced VM allows adding and removing fields and methods as well as changes to the super types of a class.

This alternative VM is enabled by adding the -dcevm option when invoking the java command.

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Install openjdk-8-jre-dcevm