Environmental Classpath

Hi
I set the path settings to use the Envirnomental Classpath by unticking Ignore on the JVM Classpath Settings using the Admin GUI. Now the J2EE Server will not start up. Is there a way to undo this by editing a config file.
Thanks in advance
fm

You did not mention which version of Application Server is this, but steps should be pretty similar...
You need to modify env-classpath-ignored property value in your <installdir>/domains/domain1/config/domain.xml file. If you set it to true, you should be back to normal.

Similar Messages

Stand alone class and the class path

Hi,
I have a simple Java project in Eclipse environment. The project has it's class path,
that contains a jar file that I need to use.
The project runs perfect in the Eclipse.
Now, I need to take the main class out of my project, to function alone in another environment.
My problem is that out of the environment, I don't know how the class should know that classpath.
I moved that jar to the same folder that the class located in, but I don't know how to tell it that the jar is there.
My goal is to run my standalone class from another java class.
I'm afraid that examples in command environment wouldn't help me.
Thanks a lot for any help !

moshi wrote:
I have a simple Java project in Eclipse environment. The project has it's class path,
that contains a jar file that I need to use.Ok, so you have a class that you have written that depends on an external library. Fair enough.
The project runs perfect in the Eclipse.
Now, I need to take the main class out of my project, to function alone in another environment.Maybe (just maybe!) defining what exactly that "other environment" is could help us help you.
My problem is that out of the environment, I don't know how the class should know that classpath.Well, obviously that depends on what that other environment is.
You must have some way to influence that other environments classpath, or you couldn't even get it to call/use your class.
I moved that jar to the same folder that the class located in, but I don't know how to tell it that the jar is there.Now you're just guessing.
My goal is to run my standalone class from another java class. That's simple enough, you probably do it all the time.
I'm afraid that examples in command environment wouldn't help me.And why exactly is that?
Do you realize that you tell us far too little about your problem for us to be able to actually help you?

Classpath problems with JMF

Hi all,
I'm trying to develop a simple application using JMF; I've problems importing classes from javax.media package. Problem with my application is that when I explicitly specify classpath as a command line argument to javac my application compiles; but if I use CLASSPATH environment variable it doesn't. Here's the output:
situ@situ-desktop:~/myjava/media$ cat First.java
import javax.media.*;
public class First{
situ@situ-desktop:~/myjava/media$ echo $CLASSPATH
/home/situ/jmf/JMF-2.1.1e/lib/jmf.jar:/home/situ/jmf/JMF-2.1.1e/lib/sound.jar:.:
situ@situ-desktop:~/myjava/media$ javac First.java
First.java:1: package javax.media does not exist
import javax.media.*;
^
1 error
situ@situ-desktop:~/myjava/media$ javac -classpath /home/situ/jmf/JMF-2.1.1e/lib/jmf.jar First.java
situ@situ-desktop:~/myjava/media$
Thanks.

According to the documentation, it wants you to set two environmental variables, JMFHOME and CLASSPATH. And it wants the CLASSPATH to be relative to that JMFHOME variable.
Try this.
setenv JMFHOME /home/someuser/JMF2.1.1
setenv CLASSPATH $JMFHOME/lib/jmf.jar:.:${CLASSPATH}

CLASSPATH and javac

Hi all,
I forgot a lot about Java, and need to relearn a few things. I had a JRE (5.0_06) already installed, and installed the JDK (1.5.0). It seems to me I do not need to use the "old" JRE. Comments? But first things first, I use XP Home SP 2.
I am now doing a Wireless Development Tutorial where I had to install Tomcat. In the tutorial it says I need to set my classpath. It now points to the JRE (.;D:\Program Files\Java\jre1.5.0_06\lib\ext\QTJava.zip). Where should I point it to if I want to use the JDK instead of the JRE? To .;D:\Program Files\Java\jdk1.5.0\lib\ ?
Next, I should be able to compile a simple program. But when I type javac, I get "'javac' is not recognized as an internal or external command". How come?
I sat my JAVA_HOME in the System Properties (Advanced tab, Environmental Variables). I should think that would be enough to let the system find the javac program. The system does not agree with me, so who can enlighten me?
Macamba

Hi all,
I forgot a lot about Java, and need to relearn a few
things. I had a JRE (5.0_06) already installed, and
installed the JDK (1.5.0). It seems to me I do not
need to use the "old" JRE. Comments? But first things
first, I use XP Home SP 2.
I am now doing a Wireless Development Tutorial where
I had to install Tomcat. In the tutorial it says I
need to set my classpath. It now points to the JRE
(.;D:\Program
Files\Java\jre1.5.0_06\lib\ext\QTJava.zip). Where
should I point it to if I want to use the JDK instead
of the JRE? To .;D:\Program Files\Java\jdk1.5.0\lib\
I, personally, do not set the CLASSPATH environment variable. I use the -cp option with the command line tools.
Next, I should be able to compile a simple program.
But when I type javac, I get "'javac' is not
recognized as an internal or external command". How
come?The is a PATH issue. In you system path, you need an entry that points to your <JDK INSTALL DIR>\bin folder.
Also, with the JDK, the JRE is bundled under the <JDK Install Dir>\jre folder.
I sat my JAVA_HOME in the System Properties (Advanced
tab, Environmental Variables). I should think that
would be enough to let the system find the javac
program. The system does not agree with me, so who
can enlighten me?Again, javac has to be on your system PATH.
>
MacambaThe JAVA_HOME environment variable should point to the <JDK INSTALL DIR>
The CATALINE_HOME should point to the <Tomcat Install Dir>
For Windows:
Configuring the JDK
Configuring Tomcat

Environmental Varaiables to be set,while using Weblogic 10.0

Hi,
I am Anubhav Gulati from INDIA.I have BEA Weblogic 10.0 on my machine.
I have made a servlet ,while i am trying to compile the class file it gives me error as:
My file name is : SomeServlet
SomeServlet.java:2: package javax.servlet does not exist
import javax.servlet.*;
^
SomeServlet.java:3: package javax.servlet.http does not ex
import javax.servlet.http.*;
^
SomeServlet.java:5: cannot resolve symbol
symbol : class HttpServlet
location: class SomeServlet
public class SomeServlet extends HttpServlet {
^
SomeServlet.java:6: cannot resolve symbol
symbol : class HttpServletRequest
location: class SomeServlet
public void doGet(HttpServletRequest request,
^
SomeServlet.java:7: cannot resolve symbol
symbol : class HttpServletResponse
location: class SomeServlet
HttpServletResponse response)
^
SomeServlet.java:8: cannot resolve symbol
symbol : class ServletException
location: class SomeServlet
throws ServletException, IOException {
^
6 errors
According to me,I have to set the Environmental Variables for that(class path,path..)? So can you help me regarding this.
BR//
Anubhav Gulati

You need to have the J2EE classes in your classpath while compiling. I've never worked with Weblogic so I don't know what the JAR is named. With Tomcat it's either servlet.jar or servlet-api.jar. A quick Google search suggests it's called 'weblogic.jar'. Use this in your classpath.

Setting Classpath on windows platform

Hello
I was trying to set classpath of "D:\documentum\config" in my environment variable , i was doing it through command
prompt , the command i was implementing was
set classpath=D:\documentum\config;
but the when i was closing command prompt , the environment variable in windows named as ClassPath was not updating
i have also tried this command
set classpath=%classpath%;D:\documentum\config;
this also having the same result , so how can i set this property through command prompt
Regards

You can permanently set command line environmental variables through the advanced settings in Windows. You have to hunt around for it a bit, it is somewhere behind opening the right click properties of "my computer" (or whatever it is called in your flavor of Windows) and then choosing advanced. An "environmental variables" tab should be present there.
BUT! I would not advise you to set a classpath variable unless you fully realize that is only to make your development life a bit easier when working on the command prompt. When making your application ready for deployment the classpath must be managed without the variable. A script could work, or packaging everything up as an executable jar. When you start to work with an IDE like Eclipse or Netbeans you don't need that variable at all any more.

Increasing classpath size in windows 2000

I have java on windows 2k and the classpath variable is more than what windows allows. as a result i have a limit on the amount of classpath i can insert. as a result i am not able to use many packages. please advise ..
i tried adding new environmental variable call max_classpath=4096, but it wont work. please advise ASAP.
thanks

thanks for the suggestions . i tried it .. but it wont work ..
finally i got something that worked .. its a little tedious but thats the only way out. i am just amazed that i havent found any one else with this problem.
here is the link with the information for working around that problem.
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q72171

Environmental setting

hai
i want to run a war file on tomcat server
but is giving error:--JAVA_HOME does not point to JDK
i have done folloing settings in environmental settings of windows xp professional as environmental variables
JAVA_HOME:C:/ jsdk1.4
path=c:/jsdk1.4/bin
classpath= c:/jsdk1.2/lib
plz help
urgent
thanks

re-install your tomcat server again
by the way, you post your problem to the wrong forum, here is about comiler

Linux-Java Classpath

I'm not new to Java, just new to Java in Linux. I installed the 1.3.1 jdk, but any time I try to compile or run something, I always get the same error:
Couldn't find or load essential class `java.lang.Object' java.lang.NoClassDefFoundError java/lang/Object
I figure it's because I don't have my CLASSPATH set, but I don't know how to do that or what to set it to. Please help!
MagiTom

Hi
Most Linux machine's use bash as their shell, so you can try editing your ".bashrc" file which lies in the root of your profile directory (normally it would be something like "/home/username"
If you want to make the changes for all users that log onto the machine you've got a couple of options - you can edit the ".profile" file under "/etc" , or you can run a script at a certain run-level; I normally choose run-level 3. OK, this last bit might sound like Greek to you, but it's also easy - have a look under "/etc" you'll find a dir called "rc.d" under that you'll find various dirs called "rc1.d", "rc2.d" etc; every dir contains scripts that execute when a certain run-level is reached. You can then just add a script that loads your environmental variables.
Below is an example of how you could set you're environment variables in your ".bashrc" file:
JAVA_HOME=/usr/lib/jdk1.3.1
export JAVA_HOME
TOMCAT_HOME=/opt/jakarta
export TOMCAT_HOME
PATH=/usr/lib/jdk1.3.1/bin:$PATH
export PATH
CLASSPATH=$JAVA_HOME/lib/tools.jar:.:/usr/lib/j2sdkee1.2.1/lib/j2ee.jar
export CLASSPATH
As you can see I set a number of variables - but that's just because I do a bit of J2EE dev every now and again
Hope this helps - and welcome to the world of Linux!!!!!

Classpath variable

Can someone please help me with what exactly the classpath variable does? I have my java and javac.exe files located in C:\Program Files\Java\jdk1.5.0\bin. I can only compile and run files that are located in this directory. So if I put my HelloWorld.java file in that directory and run the compiler, it does create a HelloWorld.class file in that directory too. When I run the file using java HelloWorld the program runs fine.
How can I save the files in other directories but still compile and run them? Any help would be great.
Thanks.

classpath variable is where u specify a path with files and such in it.
Ie \Java\jdk1.5.0\bin has got files like javac.exe and such which can normally only be run from that folder but if u specify that folder as a classpath variable it means that u can run the file javac.exe from anywhere in the computer.
To do this I have created a batch file I run every time.
part of it is:
set JAVA_HOME=C:\j2sdk1.4.2_05
(no need to specify the bin folder I think)
if u have something like XP look at system in the control panel under a button called environmental variables and add in that path
Regards, Rory

Wlst: changing classpath values in wls.jar template startscript

I need to edit my start script to include application-specific pre and post classpath additions.
Can anyone think of a way of doing this in a single pass using WLST readTemplate() etc?
I also need to add -D parameters.
My aim is to avoid any post domain creation tasks (ie. editing the setEnv or startWebLogic scripts).

WLST does not have any capability to update a JAR.
WLS 10.3 (still in tech preview) has the ability to override properties
files inside the jar with an external properties file. This would allow you
to deploy the same ear to different environments, and then only deploy a
different properties file in the plan directory.
<Rishi Shah> wrote in message news:[email protected]..
Hi,
I have an application that contains EJB. The environment values needed for
initial context of the ejb is kept in a .properties file. I have created an
ear of the application. Inside the ear there is a jar which contains the
.properties file. I need to deploy the ear to different environments.
However before deploying I need some kind of script to change the values in
the .properties file inside the jar in the ear.
Can anyone provide some help/pointers about how can I achieve it (Using
ANT/WLST)

Java.lang.ClassNotFoundException -- CLASSPATH

On my Linux machine, when I create a simple java file in the current directory, compile it, and run it, it works fine. Here are the steps that I take:
javac simple.java
java simple
When I do the same on my Windows machine, I "get java.lang.ClassNotFoundException : simple" when I do java simple. I don't understand, both src and binary files are in the same folder. How do I fix it?

aurir_ wrote:
I noticed that I get this error when I set my CLASSPATH=c:\Sun\SDK\jdk\bin.
That is a folder where I have JavaEE installed.
You do not need that Classpath setting unless you plan to put your classes into the jdk\bin directory, which is a horrible idea.
When I clear that entry from the CLASSPATH or do this: "java -cp . Test" it probably finds some other jdk and uses it, and it works fine.It is the recommendation to use -cp to set the classpath instead of the system environmental variable. But that does not change the "jdk" being used. Here's two links you might find useful.
[http://www.kevinboone.com/classpath.html]
[http://java.sun.com/javase/6/docs/technotes/tools/findingclasses.html]
Edited by: atmguy on Aug 28, 2008 9:34 AM

Https-admserv and classpath inheritance

I�ve ported a Solaris application from iPlanet 6.0 to SunONE 6.1. My application requires a certain environment (details below). In iPlanet this was accomplished by adding the classpath to the jvm12.conf file.
In SunOne 6.1, the application server.xml �ignoreclasspath� attribute is set to false. When the server is manually started (./start), the classpath is correctly inherited from the environment. However when starting the server from the Admin Console, it does not inherit the classpath. I�ve tried setting the �ignoreclasspath� attribute in the https-admserv server.xml. That doesn�t work.
-How does https-admserv know about other server environments?
-Is there a better way to inherit the classpath?
Thanks

You can modify the classpath by setting the classpathsuffix in server.xml. Refer to the Administrator's Configuration File Reference at http://docs.sun.com/source/817-1834-10/crsrvrx.html#wp1027439 for more information.

Specifying servlet classpath in xml file

          Hi there...
          Am trying to achieve dynamic class reloading for my web application, and have
          specified the servlet classpath in my web.xml file. However my server still loads
          classes that exist on the classpath first, and ignores any 'later' versions I
          have placed in the servlet classpath.
          My question would be do I really have to split up my jar files and place the individual
          classes on the servlet classpath, or can I specify two or more parameters under
          the "context-params" in the web.xml.
          Ideally I would like to be able to keep my jars whole, and upload classes to override
          the contents of the jar, and at the moment I can't see a way to achieve this !!
          Many thanks for any help anyone might be able to give !!
          George


I'm no expert with WAR files and 5.1 but....
          Have you tried putting your jar files and any non-weblogic specific jars in
          to your WEB-INF/lib directory?
          Then you dont have to specify them in the classpath when starting weblogic.
          Following this - i think you should be a step closer to dynamic class
          reloading.
          "George Cover" <[email protected]> wrote in message
          news:[email protected]...
          >
          > Thanks for the prompt response...unfortunately we are still at version 5,
          with
          > a service pack level of 10 (which has just gone live). However we do have
          our
          > environments set up as much as possible in a J2EE fashion.
          >
          > We still specify a classpath, where the jars are kept, however we also
          have WEB-INF
          > directories, where compiled classes (jsp, and shock horror, jhtml) are
          kept !!
          >
          > I think that placing classes in here, puts me in a similar situation as
          placing
          > them on the servlet classpath, the jars still override them !!
          >
          > Also the halfway house our server environments are in, plus the fact they
          are
          > all constantly changing, makes it difficult to predict behaviour, or even
          come
          > close to understanding what might happen if I change configurations here
          and there
          > !!
          >
          > Many thanks
          > George
          >
          > "Matt Krevs" <[email protected]> wrote:
          > >What version of weblogic are you using?
          > >
          > >If you are using 6.0 or greater - my understanding is that you dont
          specify
          > >your classes in the classpath when starting weblogic. Your classes and
          > >jars
          > >should be in web-inf/classes and web-inf/lib and should be loaded from
          > >there.
          > >
          > >"George Cover" <[email protected]> wrote in message
          > >news:[email protected]...
          > >>
          > >> Hi there...
          > >>
          > >> Am trying to achieve dynamic class reloading for my web application,
          > >and
          > >have
          > >> specified the servlet classpath in my web.xml file. However my server
          > >still loads
          > >> classes that exist on the classpath first, and ignores any 'later'
          > >versions I
          > >> have placed in the servlet classpath.
          > >>
          > >> My question would be do I really have to split up my jar files and
          > >place
          > >the individual
          > >> classes on the servlet classpath, or can I specify two or more
          parameters
          > >under
          > >> the "context-params" in the web.xml.
          > >>
          > >> Ideally I would like to be able to keep my jars whole, and upload
          classes
          > >to override
          > >> the contents of the jar, and at the moment I can't see a way to achieve
          > >this !!
          > >>
          > >> Many thanks for any help anyone might be able to give !!
          > >> George
          > >
          > >
          >

CLASSPATH Environment Variable on Win2k problem

hi
i am new to java, but having problems to seting the CLASSPATH Environment Variable on my Win2k professional. my university computers are alredy set and i enjoy working with java. i just cant get my head arround to this problem. it would be much appriciated if some one send me a link which provide screenshot to resolve this problem. i got my jdk1.4 kit in a folder caled jdk in c:\ root.
thanks

Ashwani_Saxena wrote:
Our application is stand-alone application and we are using Applet with Object Id tag for JavaScript to Java connectivity. In our application we are displaying the value of classpath environment variable on screen.
Applets and stand alone applications are two different animals.
While migrating from JRE 1.5 to JRE 1.6, we are unable to retrieve the classpath variable value. After analyzing, figure out that when classpath is defined in uppercase (i.e. CLASSPATH) then only we are unable to retrieve its value. However if its defined in lower case or any character is in lower case (i.e. classpath) then its value appears correctly. We are retrieving the classpath value via the "Set" command from Java.
That's completely unnecessary, there's a System.getevn("CLASSPATH") method.
However the CLASSPATH environmental variable isn't much use, and certainly not in the case of Applets, which definitely don't use it.
Futhermore I don't expect the sandbox environment of an Applet will allow you to access the environmental variables in any way, (certainly not by running a program). Applets, unless signed, have almost no access to the client machine they run on.

Environmental Classpath

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