Environment Variable

[jignesh soni]

I am working on a server.
How do I check that jre is set in PATH or CLASSPATH variable ?
Can jre be set in JAVA_HOME variable or any other variable ?

thanks

[Campbell Ritchie]

JAVA_HOME may be used as part of PATH.
The JRE might be in something like /usr/bin, as a .so file, otherwise it ought to be in PATH.
You might not have anything in CLASSPATH. Try echo (on Bash)

[Campbell@queeg ~]$ echo $PATH
/usr/java/jdk1.6.0_11/bin/:/usr/java/jdk1.6.0_11/bin/:/usr/lib/qt-3.3/bin:/usr/kerberos/bin:/usr/lib/ccache:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/Campbell/bin
[Campbell@queeg ~]$ echo $CLASSPATH

[Campbell@queeg ~]$ echo $JAVA_HOME

[Campbell@queeg ~]$

Note I have nothing set as JAVA_HOME or CLASSPATH. I think on Windows you write PATH at a command line.

Is that any help to you?
[ December 15, 2008: Message edited by: Campbell Ritchie ]

[Nitin Pathak]

In windows as well, try typing the classpath in the command prompt:

C:\>echo %CLASSPATH%
.;C:\SUN\SDK\jdk\lib;D:\Work\axis2-1.4-bin\axis2-1.4\lib\axis.jar;D:\Work\axis2-
1.4-bin\axis2-1.4\lib\commons-discovery-0.2.jar;D:\Work\axis2-1.4-bin\axis2-1.4\
lib\commons-logging-1.1.1.jar;D:\Work\axis2-1.4-bin\axis2-1.4\lib\jaxrpc.jar;D:\
Work\axis2-1.4-bin\axis2-1.4\lib\saaj.jar;D:\Work\axis2-1.4-bin\axis2-1.4\lib\lo
g4j-1.2.8.jar;D:\Work\axis2-1.4-bin\axis2-1.4\lib\xml-apis.jar;D:\Work\axis2-1.4
-bin\axis2-1.4\lib\xercesImpl.jar;C:\Work\axis2-1.4-bin\axis2-1.4\lib\wsdl4j-1.6
.2.jar;C:\Work\axis2-1.4-bin\axis2-1.4\lib\axis2-java2wsdl-1.4.jar;D:\Work\axis2
-1.4-bin\axis2-1.4\lib\wsdl4j-1.5.1.jar;C:\Sun\SDK\lib\j2ee.jar;D:\Work\apache-t
omcat-5.5.27\server\lib\servlet-api.jar;;C:\Sun\SDK\lib\j2ee.jar;D:\Work\apache-
tomcat-5.5.27\server\lib\servlet-api.jar;
 
C:\>echo %JAVA_HOME%
C:\Sun\SDK\jdk
 
C:\>

In the Tomcat servlet container, the console explicitly logs in the environment variables included in the java library path logged at INFO level during the startup.

[ramya narayanan]

Does it mean that when we're starting the tomcat service the environment variables path and classpath will be displayed at the [INFO] tags.
Regards.

[Bert Bates]

off to the intermediate forum...

[Nitin Pathak]

Originally posted by ramya narayanan:
Does it mean that when we're starting the tomcat service the environment variables path and classpath will be displayed at the [INFO] tags.
Regards.

Its necessarily the INFO message for Tomcat Native library (tcnative-1.dll) which is optional. The list of libraries added to your PATH are displayed right ahead.