NonStop Server for Java Programmer's Reference (NSJ 4.2+)

$ java utility.myapp.Cool

For further information about setting class path, see the documentation provided by Sun

Microsystems (http://java.sun.com/j2se/1.4/docs/tooldocs/solaris/classpath.html). Note that when

applying that documentation to the NonStop Server for Java 4, you should follow the instructions

given for sh and ksh instead of those for csh and tcsh. Instructions for the setenv and

unsetenv commands do not apply to the NonStop Server for Java 4.

JREHOME

The JREHOME shell variable is used by the Java runtime to determine where the core Java classes

are located. If you install NonStop Server for Java 4 in the standard location, you do not need to set

up the JREHOME shell variable because it has the default value of /usr/tandem/java/jre.

If you install the NonStop Server for Java 4 in a location other than the /usr/tandem/java

directory, you must do the following:

Create a shell variable called JREHOME and set it to the location of the jre directory. For

example, if you installed the NonStop Server for Java 4 at /h/myjava instead of

/usr/tandem, do the following to create and set the JREHOME variable:

$ export JREHOME=/h/myjava/java/jre

You must create the JREHOME shell variable in each shell in which you plan to run java or

one of its tools. For this reason, it is a good idea to put a creation mechanism in the

.profile file in your home directory that is executed each time you log on to an OSS

shell. See the Open System Services User's Guide for information on how to set the path in

your startup file.

Failure to specify the JREHOME variable may cause the JVM to fail to start, prompting the

following Java error message:

Can't find class java.lang.NoClassDefFoundError. (Wrong classpath?)

Alternatively, the JVM starts successfully but the jar files in the directory

/usr/tandem/java/jre are used instead of the files under the directory where NonStop

Server for Java 4 is installed. This can produce unpredictable results.

Symbolic Link

The link /usr/tandem/java is created when NonStop Server for Java 4 is installed. It is a

symbolic link to the actual JDK directory, which has the form:

/usr/tandem/nssjava/jdk14x_vyy

where x refers to the version number of the Sun Microsystems update upon which NonStop Server

for Java 4 is based and yy refers to the particular product version update (PVU) of NonStop Server

for Java 4. For example, for NonStop Server for Java 4, based on Java 2 Platform, Standard Edition,

SDK 1.4.2, the symbolic link is /usr/tandem/nssjava/jdk142_v20.

The /usr/tandem/java is a shorthand way to refer to the latest version of the JDK installed on