JIT : Java Glossary

JIT
JIT (Just In Time) compiler. Compiling to native code just before the program runs. The results might be cached, but typically no permanent *.exe file is created. Contrast that with a native mode compiler. You get better debugging stack traces with the JIT turned off, and typically you get fewer JVM (Java Virtual Machine) bugs.

In

java.exe -Djava.compiler=NONE HelloWorld
make sure the -D option comes first, or it will be taken as a parameter to HelloWorld.

With

REM use JIT
SET JAVA_COMPCMD=
REM use Interpreter
SET JAVA_COMPCMD=DIS
Unfortunately, capturing these commands in a BAT (Batch) file has no effect since environment changes are discarded as soon as the bat file finishes.

In

@echo off
rem jiton:jitoff d:
cd"Program Files\Netscape\Communicator\Program\Java\bin"
if"%1"=="on"rename jit3240.off jit3240.dll>NUL
if"%1"=="off"rename jit3240.dll jit3240.off>NUL
if exist jit3240.dll echo jit now on
if exist jit3240.off echo jit now off
rem -30-

CMP homejump to top

available on the web at:

http://mindprod.com/jgloss/jit.html
  

optional Replicator mirror
of mindprod.com
on local hard disk J:

J:\mindprod\jgloss\jit.html
logo
Please email your , letters to the editor, errors, omissions, typos, formatting errors, ambiguities, unclear wording, broken/redirected link reports, suggestions to improve this page or comments to Roedy Green : feedback email. If you want your message, your name or email kept confidential, not considered for public posting, please explicitly specify that. Unless you state otherwise, I will treat your message as a letter to the editor that I may or may not publish in the feedback section. After that, it will be too late to retract it. If you disagree with something I said, especially when sending an ad-hominem attack, a rant composed mainly of obscenities or a death threat, please quote the offending passage and cite the web page where you found it, tell me why you think it is wrong, and, if possible, provide some supporting evidence. I can’t very well fix erroneous or ambiguous text if I can’t find it.
Blog
IP:[65.110.21.43]
Your face IP:[67.202.9.192]
You are visitor number 21,399.