java and memory options

[Dilton McGowan II]

On RedHat 9, to make java startup I've found it necessary to supply -Xmx
style option. javac fails to recognize this and still does not start. Is
there a way to globally specify these options?

 

[Roland]

On RedHat 9, to make java startup I've found it necessary to supply -Xmx
style option. javac fails to recognize this and still does not start. Is
there a way to globally specify these options?

Use -J option to pass VM specific parameters, i.e.
$ javac -J-Xmx48m YourClassToCompile.java

See <http://java.sun.com/j2se/1.5.0/docs/tooldocs/solaris/javac.html>

The -J option is also available for most of the other java tools (e.g.
javadoc).
--
Regards,

Roland de Ruiter
` ___ ___
`/__/ w_/ /__/
/ \ /_/ / \

 

[Dilton McGowan II]

Use -J option to pass VM specific parameters, i.e.
$ javac -J-Xmx48m YourClassToCompile.java

See <http://java.sun.com/j2se/1.5.0/docs/tooldocs/solaris/javac.html>

The -J option is also available for most of the other java tools (e.g.
javadoc).
--
Regards,

Roland de Ruiter
` ___ ___
`/__/ w_/ /__/
/ \ /_/ / \

Ok that works, thanks much! A global setting would be nice since you're
comment made me try several java binaries and they all seem to require the
explicit -J option to work.

 

[Roedy Green]

On RedHat 9, to make java startup I've found it necessary to supply -Xmx
style option. javac fails to recognize this and still does not start. Is
there a way to globally specify these options?

in windows you could do it like this, not quite what you want:

set JavaStartOpts=-Xmx....

This is set up in the control panel or the autoexec.bat file in very
old windows versions.


Then on your command line or in your bat file you say:


java %JavaStartOpts% Myclass

At least that way you need change them in only one place.

Presumably red hat has something similar.