Information about _JAVA_OPTIONS

Question

Can anyone explain what does Java do when _JAVA_OPTIONS Environment variable defined & when application launched on the windows machine?

Answer 1

You can use _JAVA_OPTIONS to pass options to any JVM process started on your system.

For example,

set _JAVA_OPTIONS=-Dsun.java2d.noddraw=true

When a JVM starts, it parses the value of _JAVA_OPTIONS as if the parameters were at the command line of java. You can see the passed parameters via JVisualVM.

For more information, read the blog post: What I discovered while trying to pass Default JVM Parameters