PicoJava
Updated: 04/26/2017 by Computer Hope
PicoJava is a specification for microprocessors that allows Java code to run without the need for a JIT (just-in-time) or an interpreter. The goal of this is to help speed up the execution of Java code. Rather than containing I/O interface or memory logic, this is left to the programmer to deal with in a customized fashion.
It was not widely implemented by Sun Microsystems when PicoJava was developed, but was subsequently commercially licensed.