From Oracle 11g release 1 (11.1), Oracle introduces just-in-time(JIT) compiler for Oracle JVM environment, which results in faster execution because invalidation, recompilation, and storage of code is done dynamically.

JIT is controlled by parameter java_jit_enabled, and if it is set to TRUE then the Java methods are automatically compiled to native code by the JIT compiler and made available for use by all sessions.

But you can get the error Ora-29516 Aurora assertion failure on Linux x64bit platform, and the workaround to overcome that error is turning off the JIT compiler:

alter system set java_jit_enabled=false;