Creating Pages using jar file

When I wrap up my JAR file (contains JSPs and classes) and use the portal interface to upload to a JAR file and point to the main JSP page - when I run it, it cannot find the class files that should be wrapped inside the JAR file. I can't find ANY documentation on how to do this, so any help would be appreciated. Thanks.

From the PDK article Java Server Pages Support In Oracle9iAS Portal, located on Portal Center:
In the current version of Portal, the support for JAR files is limited to the JAR files that have a set or combination of JSP pages, HTML files, and image files. No class files placed in a JAR file will be recognized by the container. As a workaround, you can put your class files in the /WEB-INF/classes directory.

Similar Messages

Creating & Using .jar files and manifests

I've read through hundreds of online tutorials on creating and using .jar's, but it's surprising how unhelpful they really are.
I've been trying to make a java program of mine standalone, so I can distribute it to others and allow them to run it without use of a compiler, etc (ideally just a .exe or .bat that they double click on). Everything I've found says I need to create a .jar of my program in order to do this. I was finally able to create a .jar but I got different errors relating to "main-class" and "manifest" issues...I tried running it with javaw.exe and had the same problem.
Some tutorials briefly discuss "meta manifest's", other's skip the concept all together in creating .jar's. I created a jar with:
jar cf A2.jar c:\jarTester.java
after changing my command prompt path to
C:\Program Files\Java\jdk1.6.0_01\bin
It created the .jar, but nothing worked. As above, it gave me errors relating to the "Main-Class" and "Manifest". So here's my question:
What involvement does a "manifest" play in .jar's, and how do I create/use one to create a .jar? Why is it necessary to specify the "Main-Class" when I have already done so in my .java file?
I believe that once I can get this "Main-Class" and "Manifest" problem straightened out, I will be able to create a batch file with the line:
java -jar A2.jar
is this correct? THANKS.

I've read through hundreds of online tutorials on
creating and using .jar's, but it's surprising how
unhelpful they really are.really, hundreds?
I've been trying to make a java program of mine
standalone, so I can distribute it to others and
allow them to run it without use of a compiler, etc
(ideally just a .exe or .bat that they double click
on). Everything I've found says I need to create a
.jar of my program in order to do this. Make up your mind, do you want to make a jar or an exe?
I was
finally able to create a .jar but I got different
errors relating to "main-class" and "manifest"
issues...I tried running it with javaw.exe and had
the same problem.
Some tutorials briefly discuss "meta manifest's",
other's skip the concept all togetherthat's because the manifest isn't usually necessary
in creating
.jar's. I created a jar with:
jar cf A2.jar c:\jarTester.javaugh, that won't work. you need to put the class file in there, not the source. or you can put the source in as well if you want, but the class is necessary
i'm ignoring the rest of this post for now
go back to Google and type in jar manifest and read more

Strip classes actually used in a jar file to create a smaller jar file?

I am creating a applet using java3d and the jar files add up to over 4meg ( j3dcore.jar j3dutils.jar vecmath.jar). Is there a way you can strip out only the classes your applet uses and create a smaller jar file so that the download isn't as big? Currently takes a long while for the applet to start because it downloads the Java 3D library in its entirety.

Most likely those classes that you use also use other classes that you don't use ...

Error while using .jar file instead of class file.

Hello friends,
I created a java class which are referred and called from other jsp\xml and java files. I compiled this java class and everything is working properly. However, I do not want to use class files but want to use jar files instead. So, I created a jar file of this class file by using the command "jar -cvf jarfilename.jar".I kept the jar file in its respective folder .Also, I removed the class file from its path, just to see that the jar file will work automatically.
Unfortunately, I am getting an error:
java.lang.RuntimeException: Component.createComponent(...) Component class not found: <java class path>. I also tried giving the path of this jar file in the classpath. This also does not seem working.
How to solve this problem?
Thanks,
Ranjith M.V
Edited by: RanjithM.V on May 11, 2008 10:34 PM

You probably populated the jar file incorrectly.
A common mistake is to include the path that you had on the classpath, in the jar file.
So a person will have a classpath like this: /foo/
And a class in a package bar, like this:
package bar;So that other classes would include the file like this:
import bar.TheClass;And the class file is on the filesystem like this:
.../foo/bar/TheClass.classThen they'll create the jar file including the foo directory, so if they list the jar's contents, they'll see the above (/foo/bar/TheClass.class). But this is wrong. It should start off so that the jar entries start with the top-level package names (like /bar/TheClass.class).
Maybe you've done that.

Help using jar file!

Help using jar file!
Hello
I have created a jar file by using
jar cvmf Manifest.txt myjar.jar 1.class Mydirectory
In 1.java file :I have used
JEditorPane editor;
editor.setPage(getClass().getResource("/Mydirectory/default.htm"));
If I am only giving myjar.jar file to the client without Mydirectory then also it is working fine by showing default.htm in JeditorPane.
But my problem is I want to use
Runtime.getRuntime().exec("cmd /c start IEXPLORE"+targetstr) ;
targetstr will be the filename with path of the default.htm
If I am giving myjar.jar file with Mydirectory to the client it is working but I don't want to give Mydirectory to the client .
What should I do?
Is there any solution for this?
Using another jar file which will include mydirectory can solve this problem?
Is there any othe concept in java so that I wll be able to hide Mydirectory from client?
Please help.

It seems like you could extract the .htm file from the jar, either with Runtime.exec or using the Jar API classes.

Creating an exacutable jar file in netbeans

Hey, how can i create an exacutable jar file in netbeans ?

i guess you already have a project created, if you don't create a new java application project.
Then you need to do the following:
1. Set the main class. This is the class that will run first.
for this you need to right click in the project node, select properties, then run and in the Main Class field put the main class.
2. Set the classpath: you need to put all the libraries or resources you use in your project.
to do that right click the libraries node, select properties, then add library and add all the libraries that your project needs
by doing this steps netbeans will create your manifest file and the jar that will create will be executable.
Hope this helps.
Escobar5

Using JAR file in running application and POI !

Hi all
I am trying to use POI HSSF f(for the first time, So pls bear with me!)or creating excel file from my java Application. I am using the jar file :
poi-2.0-RC2-20040102.jar. Not sure if its the correct one. So If I am wrong pls correct me.
Now I am creating a bat file to compile my application:
@echo off
C:\jdk1.3.1_04\bin\javac -classpath C:\POI\poi-2.0-RC2-20040102.jar MyApp.java
pauseIt compiles fine. Now If I try to use the jar file in run.bat for running my application, it says NoClassDef FoundError:MyApp. Here is my run.bat
java -classpath C:\POI\poi-2.0-RC2-20040102.jar MyApp
pauseI am not able to run my application with this run.bat file . If I change the content to:
"java MyApp.java"
It runs but give me error: NOClassDefFoundError:import org.apache.poi.hssf.usermodel.HSSFWorkbook
Pls suggest me about how to use jar file in running my app and how to rresolve workbook finding problem.
Reagrds

Try this:
java -classpath .;C:\POI\poi-2.0-RC2-20040102.jar MyApp
pauseNote the "dot semi-colon" at the start of the CLASSPATH. That puts the current directory in the CLASSPATH, which is where MyApp.class lives. (No package, right?)
See if that works better.

How to create a client jar file???

How do I create a client jar file for the client program? Please see my attached
ejb-jar.xml. I compiled the my EJB and deployed it successfully. However, I couldn't
find the client jar anywhere. I use the weblogic admin console DD editor, I can
see that the edit field has been populated with my client jar file name defined
in the ejb-jar.xml. However, I searched entire system, I could not locate this
jar anywhere.
How do I do that? If someone knows how to do it, please let me know. Thank you
very much.
[ejb-jar.xml]

How do I create a client jar file for the client program? Please see my attached
ejb-jar.xml. I compiled the my EJB and deployed it successfully. However, I couldn't
find the client jar anywhere. I use the weblogic admin console DD editor, I can
see that the edit field has been populated with my client jar file name defined
in the ejb-jar.xml. However, I searched entire system, I could not locate this
jar anywhere.
How do I do that? If someone knows how to do it, please let me know. Thank you
very much.
[ejb-jar.xml]

Creating a simple jar file

I am trying to create a simple jar file for a swing application. I have used some third party api in the application.
However when i create a jar of the application using JDeveloper it seems to add all the third party class files too into the jar which i definately dont want. How do i do the same.

I presume you used a JAR deployment profile. Check the profile settings under "Dependency Analyzer". You might have checked there some jars you don't want to be included in the final package and the option "Include all of their contents..." is selected. Uncheck the ones you do not want to be included in the output archive.
Florin

Unable to create an executable jar file

Hi,
I am unable to create an executable jar file,
I am using the command as follows:
C\> jar cvfm MyJarName.jar manifest.txt Demo.class
where as Demo.class has appropriate main method; manifest.txt contains [ Main-Class: Demo ] and a new line
Please help.
thanks & regards
M K Rayapudi
Edited by: R6i on Apr 30, 2009 5:15 AM

Your jar is perfectly generated, but your machine has a problem with .jar file associations.
You have two options:
1. Play with the registry. Dangereous if you are not used to.
2. Reinstall the jre.
Just to verify my theory, open a command prompt and the command:
reg query HKCR\jarfile\shell\open\command
What does it say? I have executed your command , here is the output
HKEY_CLASSES_ROOT\jarfile\shell\open\command
(Default) REG_SZ "C:\Program Files\Java\jre6\bin\javaw.exe" -jar "%1" %*I am not getting anything from this command, can you please explain clearly.
thanks & regards
M K Rayapudi
Edited by: R6i on May 3, 2009 10:18 PM

Using .jar files

I was able to use .jar files in Java programs that I write on my computer. I could write a program that used an import statement to bring in classes contained in a .jar file.
One day, I was trying to incorporate a jar file folder directly into my windows operating system by using the environmental variable called CLASSPATH. Unfortunately, I made the mistake of screwing up my PATH variable. I fixed my PATH variable back up by adding the directory to the bin folder inside of the Java folder as is described commonly by the documentation for installing the Java SE on windows computer.
Since that day, I have not been able to use .jar files using an import statement. My computer is unable to find the .jar files even if I specify the exact directory. Even the IDE(netbeans) that I use is unable to find and use .jar files. I have found that I can open up .jar files and pull the contents that I need out of said .jar files, but I have a project that does not allow me to open up the .jar files and extract the needed classes.
I have googled this problem so much that I have read hundreds of posts about .jar files, and I cant find anyone in a situation that is similar to mine. If I take my files to another computer with Java SE installed, then my source code can access the .jar files just fine. For some reason, my work computer seems to hate using .jar files. I have no idea what could be the problem. There is no information in the java documentation on troubleshooting with this problem, and the most confusing part is that it worked perfectly fine until That one day
Does anyone have any ideas?
Specific technical details:
I need to pull the Stopwatch.class file from a stdlib.jar file. In the past I had done this by using an import statement inside of my program:
"import stdlib.Stopwatch; "
Using this command to compile:
"javac -cp .;(directory path to .jar file); source.java"
This used to work. Now when using the javac command I get error messages
1. Error points directly to import statement. Arrow directed at the period after stdlib.
"cannot find symbol"
2. Error message pointing to all instances of the class that I was attempting to import into my program.
Thanks for reading
Edited by: 955611 on Aug 28, 2012 7:22 PM

I read your post. I want to compile this project by using the "-classpath" option in the javac command. After screwing up important system variables once, I do not want to continually have to play with system variable in order to compile projects. To quote from the website that you linked:
Using the JDK tools' -classpath option
The JDK tools java, jdb, javac, and javah have a -classpath option which replaces the path or paths specified by the CLASSPATH environment variable while the tool runs. This is the recommended option for changing class path settings, because each application can have the class path it needs without interfering with any other application.
The runtime tool java has a -cp option, as well. This option is an abbreviation for -classpath.
For very special cases, both java and javac have options that let you change the path they use to find their own class libraries. The vast majority of users will never to need to use those options, however.
Clearly, the "-classpath" option in the javac is intended to replace the need to play with important system variables. I guess my post boils down to the question of "Why doesn't this command work for me?". I followed your suggestion by removing the bin directories and adding the stdlib.jar directory directly into the system variable itself. Here is the following output from my command prompt:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Lelo>E:
E:\>cd Programs\Java
E:\Programs\Java>javac testy.java
testy.java:1: error: package stdlib does not exist
import stdlib.Stopwatch;
^
1 error
E:\Programs\Java>echo %CLASSPATH%
C:\Program Files\Java\jre6\lib\ext\QTJava.zip;E:\Programs\Java\stdlib.jar;
E:\Programs\Java>javac -classpath .;E:\Programs\Java\stdlib.jar; testy.java
testy.java:1: error: package stdlib does not exist
import stdlib.Stopwatch;
^
1 error
E:\Programs\Java>
I still received the same errors. It seems that even adding the directories into the system variable will not work for me.

Performance issue if we use jar file instead of classes

Hi,
My application uses tomcat as web server.
If i use calsses in webapps -> WEB-INF -> classes folder, i place classes in that ,
In other case i use jar file and place that file in WEB-INF -> lib folder in the webapps directory.
There is huge performance difference.
While using classes performance is great while using jar file performance is very disappointed.
I am using a file for encryption /decryption also.

I can't really believe that classes vs jars makes a difference, but whatever.

How to use jar files without setting classpath

Hi,
I have a situvation, I can not set classpath, but i have to use jar files, how can I do that.

URL[] urls = new URL[]{pathToJar, pathToAnotherJar, ...};
URLClassLoader urlc = new URLClassLoader(urls);
Now load classes within the jars loaded by the urlc classloader as needed. This is a limited approach, you can mostly use interfaces to work with classes loaded by the custom loader instance above and your existing classes.

Use jar file

dear guys,
can somebody tell me why would use jar file? how it would be use? i would like to get the idea of jar file
thanks

Are you familiar with zip files? A jar file is just a kind of zip (the jar utility will even read zip files as though they were jars).
The most common use is to hold .class files generated from all the classes of a Java program so that you can run the program from that one file, rather than very large numbers of small class files. Libraries of classes are almost always stored as jars.
Of course you can put other stuff in there too, like image files and the like.

Create Client Using WSDL files

Hi All,
I've completed the following -
1. Created the scenario SOAP => XI => RFC
2. Using XI configuration , generated WSDL specifying the Message Interface which triggers the scenario in XI.
http://<serverhost>:<port>/XISOAPAdapter/MessageServlet?channel=<party>:<ServiceName>:<Channel Name>
3. Transported this WSDL to local directory
now when i retrive wsdl from XIServer to Create Client
it gives exception
and i didn't retrive WSDL files
so please help, i have WSDL file how to Create Client using WSDL file.
Thanks in advance...
regards
Bhaumik

hi suraj
i will check with XMLSPY
but it gives Error Like :
HTTP Error : Could not Post
http://xiserver:8000/XISOAPAdapter/MessageServlet?channel=:BS_SoapToRFC:SOAPtoXI&version=3.0&Sender.Service=BS_SoapToRFC&Interface=http%3AservicetoRFC%5EPO_sync_out
on xiserver (500)
regards
Bhaumik

Creating Pages using jar file

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