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<H1><A NAME="SECTION035130000000000000000">
Environment Variables</A>
</H1>
<P>
There are some environment variables associated with running Java
with Babel. You can find examples for some of these in the regression
tests included with babel.
<P>
<A NAME="9217"></A>CLASSPATH: The CLASSPATH is an environment variable that Java uses to
find <TT>.class</TT> files. It's is not specific to Babel, but it is
necessary. It consists of a colon delimited series of directories to
search for Java classes. In addition to any of your own Class files
for use in Java server side, you should include <TT>build
dir/lib/sidl-ver.jar</TT> where ver is the current sidl version, and
<TT>build dir/runtime/java</TT>.
<P>
<A NAME="9221"></A>
BABEL_JVM_FLAGS: This environment variable is used <SPAN CLASS="textit">only</SPAN> when
passing java command line variables to Java server side. It consists
of a semi-colon delimited list of command line variables you wish to
pass to Java server side. (A useful one might be -Xcheck:jni) )Here's an example:
<P>
<BR>
<PRE CLASS="verbatim">BABEL_JVM_FLAGS="-verbose:gc;-Xmx500m"
</PRE></td></tr></table></blockquote>
<P>
It is also necessary to set your LD_LIBRARY_PATH (or LIBPATH on AIX)
and SIDL_DLL_PATH correctly. Not including all the necessary
files in the SIDL_DLL_PATH and LD_LIBRARY_PATH <SPAN CLASS="textit">can</SPAN> crash
the JVM in unhelpful ways. Babel tries to generate helpful error
messages, but sometimes the JVM crashes due to missing files and
doesn't generate very helpful output. If the JVM crashes, make sure you've included all
the necessary files in your SIDL_DLL_PATH and LD_LIBRARY_PATH.
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<br><br>babel-0.10.2<br>users_guide Last Modified 2005-03-23<br><br><a href="http://www.llnl.gov/CASC/components">http://www.llnl.gov/CASC/components</a><br><a href="mailto:components@llnl.gov">components@llnl.gov</a>
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