JAVA invocation interface (jar files) BouncyCastle

Hi!
I am developing a C++ application which needs the use of BouncyCastle security provider. So I attach to the compilation classpath the jar bouncycastle jar file. Compilation is OK. When i try to trigger mi application jvm crashes. I think that is a problem of JVM path. How should i configure the vm-args.path? The application runs under Linux Ubuntu...
Thanks in advance...
Kind Regards

Hello Mike,
It customization jar file.
And customer wants to load this jar file to EBS apache server, so that they can use it to do some development work?
Now, they wants to know how to load it?
Thanks,
Jackie

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Hi all,
I am working on JCOP and writing quite a bit of applets for the java card . Now i have lots of code that could be reusable for example sending SMS, encryption routine, etc.. So this part of the code i want to put into a utility class and create a package out of it. This utility package i must be able to import into my programs what i write.
I tried the normal way of creating the jar by renaming the CAP file of the utility class, also tried including the /javacard/* files also into the jar file as indicated by sfarmer(active forum member here). But none seems to work. I tried contacting NXP folks and they indicated that it may be possible only by way of Sharable Objects.
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Regards
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Hi,
Well the variable defined are as below
public static byte[] msgdata = new byte[255];
private static final byte[] HEADER_TEMPLATE = {
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Images not getting Loaded while running Java Application through jar file

Hello Friends,
I have a problem while starting my application.I have written my application using pure java.There is no JSP or anything just pure swings.Mine is a standalone appplication.So i used to run it using a batch file.And when i used to start my application it used to not show me the images.so what i did was i mentioned the starting directory in the properties of the batch file (ie in the start in column field).But that was when i was using weblogic server.And i have lot of people working on the same application.so i used ZAC publisher in weblogic and along with that i used to publish the batch file also.so the users dint have any problem.But now what is my problem is i m trying to use JAVA Webstart instead of weblogic ZAC.Now in webstart what happens is that i have to run the appliaction thru jar file.so where do i mention the class path so that the images get loaded.As of now the imaes are not getting loaded.i feel this is a class path problem.but where do i mention it that is my problem.It would be really helpfule if someone could help me out.
thanx and regards,
[email protected]

try out this
ImageIcon img1=new ImageIcon(this.getClass().getResource(imagename));
for exmaple
Imageicon img1=new ImageIcon(this.getClass().getResource("name1.jpg"));
dont 4get to include the image files in the jar file

Java Access Helper Jar file problem

I just downloaded Java Access Helper zip file, and unzipped, and run the following command in UNIX
% java -jar jaccesshelper.jar -install
I get the following error message, and the installation stopped.
Exception in thread "main" java.lang.NumberFormatException: Empty version string
at java.lang.Package.isCompatibleWith(Package.java:206)
at jaccesshelper.main.JAccessHelperApp.checkJavaVersion(JAccessHelperApp.java:1156)
at jaccesshelper.main.JAccessHelperApp.instanceMain(JAccessHelperApp.java:159)
at JAccessHelper.main(JAccessHelper.java:39)
If I try to run the jar file, I get the same error message.
Does anyone know how I can fix this?
Thanks

Cross-posted, to waste yours and my time...
http://forum.java.sun.com/thread.jsp?thread=552805&forum=54&message=2704318

Java application - build JAR file & include JCO library

Hello everyone,
I have a problem with my Java application that connects to SAP system using JCO library (sapjco.jar).
I would like to create a JAR file from my Java application but when I run the JAR file that I created I get an error that NoClassDefinitionFoundError com/sap/mw/jco/JCO at [...]
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-- If there is a problem with the DLL files, how can I include the JCO lib externally (dynamicly read the JCO whenever my JAR in run)?
I am using Eclipse 3.2 and Export to JAR option when I click right button on Project.
THANKS IN ADVANCE FOR HELP!!!

Hi,
The problem is that you don't have defined the libraries in the Manifest file of your jar-file. So the jar doesn't know what to use at runtime.
Add following entry to the MANIFEST.MF file:
Class-Path:/<lib_folder>/<lib1_name>.jar; /<lib_folder>/<lib2_name>.jar and so on.
Regards,
Daniel

Java executables and jar files

I'm new to Java and recently completed a Java training class that involved the creation of a cutomer service application in Microsoft Visual J++. The application ran fine in debug mode. However, no mention was made of how this would be run on a machine without an development tool as J++. How is this done? Can Java programs be compiled into .exe's like C, C++,, abd Visual basic programs? If not, how are the classes called to make use of their code?
Also, what is a .jar file and how is it used?

You went to a class and they didn't teach you the answers to these questions? I say go and get your money back: you we're ripped off.
1) Yes you can turn your java code into an .exe but that would be pointless as java was designed to be "platform independant" and this violates that principle.
2) jar files are zip files for all intents and purposes. They contain your 'compiled' java byte code.
3) Microsoft does not support J++ nor does it ship java with its browser anymore so I suggest you download java from this website and use the real thing.

Java application to jar file

I use eclipse and i have a java program which run without any problem,
but when I export this program to jar file(export->java->jar file)
I get the jar file and when I run this jar file ,it run for few seconds then it stop to run,despite in eclipse it run .
I don't know what is the problem

netcom_ wrote:
I found the error;I have a file.txt under the bin of the project,but when I export the project this file
don't appear so when I run the jar it doesn't find the file.this file is neccessery for the project.
I will read the content of this file,So I think after exporting the project I make it with the jarfile and I use this code to read the file.
String lin= is.read(buffer);
Huh?!? Since InputStream.read(byte[]) returns an int, I do not understand how that compiles, let alone runs.
But any way you cut it, that I/O code was utter rubbish.
but also it doesn't find the file.When reporting problems, please [copy/paste any error messages|http://pscode.org/javafaq.html#exact] you are getting.

Java Application as jar File cannot connect to SAP via JCO

Hey guys,
I wrote a test class to play a little with the java connector. Everything worked fine.
Now I want to pack my java class and the JCO classes in one jar file. I have written a manifest file with the Main-Class statement and after I start the jar file I got following exception:
Exception in thread "main" java.lang.ExceptionInInitializerError: JCO.classIniti
alize(): Could not load middleware layer 'com.sap.mw.jco.rfc.MiddlewareRFC'
JCO.nativeInit(): Could not initialize dynamic link library sapjcorfc [no sapjco
rfc in java.library.path]. java.library.path [C:\WINDOWS\system32;.;C:\WINDOWS\S
ystem32;C:\WINDOWS;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\Ja
vaConnector\sapjco.jar;C:\j2sdk1.4.2_12\bin;]
 at com.sap.mw.jco.JCO.<clinit>(JCO.java:776)
 at de.lymez.sti.SAPAufruf.getDocnr(SAPAufruf.java:26)
 at de.lymez.sti.Aufruf.main(Aufruf.java:12)
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Best regards,
Timo

Thanks Vladimir,
but I followed the Tutorial and copied every dll in the wright folder and set the pathes. In one of the threads someone told about a tool named dependency walker. I used this with the sapjcorfc.dll and the tool answered that the DRVADODB.DLL is not found. Can anyone send me this dll? And why worked everything fine, when I use the class? I only have problems when I use one jar file!
Thanks for any help!!
Regards,
Timo

How to run Java App in Jar file

I can run Java App jar-ed into 1 jar file with java -jar App.jar
But sometimes I need to jar only the app and bind the other classes from different place. So I tried to use:
java -classpath c:\utils.jar -jar App2.jar
where classes in App2.jar link to utils.jar. I just can't make it work. Any idea/help.
thanks
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hi HasanOen
u need to edit the manifest file in yr JAR file u can do this by using the following cammand or by making the batch file but make sure all the files are in same folder.
first of all u need to make a text file like below
/////////// first file name: "THIS.txt" /////////
Manifest-Version: 1.0
Created-By: java // whatever here
Main-Class: PUT YOUR MAIN CLASS NAME HERE (like MAIN)
//////////////////// BATCH FILE "RUN.bat" //////////////
jar cmf This.txt App2.jar MANIFEST.mf com
com is the folder where your all the class file are.
now double click the run.bat file. this will edit yr manifest file.
hope this should work for u
Note : Make sure yr jar file, txt file, bat file, and yr classes folder is in the same folder(I mean at same level)
regards
Satinderjit

Can we send java classes instead jar files through web start?

HI,
As we all know through web start we can send jar files from server to client system and run application. is it possible to send only java class file directly without making it jar? if yes then how it is?

no - not possible in jnlp specification.

I want to download Java Speech API jar file where can I get that ?

hi All
i started development on the Java Speech API. so were i can download the jar file and also if any one having the Maven artifact Id / group Id. please post it.it may helpful for me.
Thanks
Jega

Sun has no such API like Java Speech API in their J2SE but there r other third parties api like FreeTTS which can be used
to code speech apps.
http://nchc.dl.sourceforge.net/project/freetts/FreeTTS/FreeTTS%201.2.2/freetts-1.2.2-bin.zip

How to create and use library JAR files with command-line tools?

Development Tools -> General Questions:
I am trying to figure out how to put utility classes into JAR files and then compile and run applications against those JAR files using the command-line javac, jar, and java tools. I am using jdk1.7.0_17 on Debian GNU/Linux 6.0.7.
I have posted a simple example with one utility class, one console application class, and a Makefile:
http://holgerdanske.com/users/dpchrist/java/examples/jar-20130520-2134.tar.gz
Here is a console session:
2013-05-20 21:39:01 dpchrist@desktop ~/sandbox/java/jar
$ cat src/com/example/util/Hello.java
package com.example.util;
public class Hello {
    public static void hello(String arg) {
     System.out.println("hello, " + arg);
2013-05-20 21:39:12 dpchrist@desktop ~/sandbox/java/jar
$ cat src/com/example/hello/HelloConsole.java
package com.example.hello;
import static com.example.util.Hello.hello;
public class HelloConsole {
    public static void main(String [] args) {
     hello("world!");
2013-05-20 21:39:21 dpchrist@desktop ~/sandbox/java/jar
$ make
rm -f hello
find . -name '*.class' -delete
javac src/com/example/util/Hello.java
javac -cp src src/com/example/hello/HelloConsole.java
echo "java -cp src com.example.hello.HelloConsole" > hello
chmod +x hello
2013-05-20 21:39:28 dpchrist@desktop ~/sandbox/java/jar
$ ./hello
hello, world!I believe I am looking for:
1. Command-line invocation of "jar" to put the utility class bytecode file (Hello.class) into a JAR?
2. Command-line invocation of "javac" to compile the application (HelloConsole.java) against the JAR file?
3. Command-line invocation of "java" to run the application (HelloConsole.class) against the JAR file?
I already know how t compile the utility class file.
Any suggestions?
TIA,
David

I finally figured it out:
1. All name spaces must match -- identifiers, packages, file system, JAR contents, etc..
2. Tools must be invoked from specific working directories with specific option arguments, all according to the project name space.
My key discovery was that if the code says
import com.example.util.Hello;then the JAR must contain
com/example/util/Hello.classand I must invoke the compiler and interpreter with an -classpath argument that is the full path to the JAR file
-classpath ext/com/example/util.jarThe code is here:
http://holgerdanske.com/users/dpchrist/java/examples/jar-20130525-1301.tar.gz
Here is a console session that demonstrates building and running the code two ways:
1. Compiling the utility class into bytecode, compiling the application class against the utility bytecode, and running the application bytecode against the utility bytecode.
2. Putting the (previously compiled) utility bytecode into a JAR and running the application bytecode against the JAR. (Note that recompiling the application against the JAR was unnecessary.)
(If you don't know Make, understand that the working directory is reset to the initial working directory prior to each and every command issued by Make):
2013-05-25 14:02:47 dpchrist@desktop ~/sandbox/java/jar
$ cat apps/com/example/hello/Console.java
package com.example.hello;
import com.example.util.Hello;
public class Console {
    public static void main(String [] args) {
     Hello.hello("world!");
2013-05-25 14:02:55 dpchrist@desktop ~/sandbox/java/jar
$ cat libs/com/example/util/Hello.java
package com.example.util;
public class Hello {
    public static void hello(String arg) {
     System.out.println("hello, " + arg);
2013-05-25 14:03:03 dpchrist@desktop ~/sandbox/java/jar
$ make
rm -rf bin ext obj
mkdir obj
cd libs; javac -d ../obj com/example/util/Hello.java
mkdir bin
cd apps; javac -d ../bin -cp ../obj com/example/hello/Console.java
cd bin; java -cp .:../obj com.example.hello.Console
hello, world!
mkdir -p ext/com/example
cd obj; jar cvf ../ext/com/example/util.jar com/example/util/Hello.class
added manifest
adding: com/example/util/Hello.class(in = 566) (out= 357)(deflated 36%)
cd bin; java -cp .:../ext/com/example/util.jar com.example.hello.Console
hello, world!
2013-05-25 14:03:11 dpchrist@desktop ~/sandbox/java/jar
$ tree -I CVS .
|-- Makefile
|-- apps
|   `-- com
|       `-- example
|           `-- hello
|               `-- Console.java
|-- bin
|   `-- com
|       `-- example
|           `-- hello
|               `-- Console.class
|-- ext
|   `-- com
|       `-- example
|           `-- util.jar
|-- libs
|   `-- com
|       `-- example
|           `-- util
|               `-- Hello.java
`-- obj
    `-- com
        `-- example
            `-- util
                `-- Hello.class
19 directories, 6 filesHTH,
David

Is there anyone using Java Methods interface of IREP in his application

Hello everyone,
Are you using Java Methods interface of IREP in your application?
Nowadays I am trying to using Java Methods in my application. But I'm puzzled how to get the interface jar files that the Java Methods would import. It seems that Oracle doesn't provide such interface jar files for all Java Methods shipped in IREP. How do you do with this?
If you have some experience about using Java Methods in application, hope to hear your voice. Thanks in advance.

Hi friend,
Thanks for you update.
I'm referring to Java Methods that can be called directly by applications not Java Service Interface. These are two different kinds of IREP interfaces. In Oracle Integration Repository User's Guide, there aren't much guidance about how to use Java Methods.
I appreciate you can help me further.

Jar files opening with RAR, WHA????????

Ok, I was trying to Hic get a great java3d platform game (brutal file manager) to load.
I tried again, exept now, the jars open with winrar!
I found my main class problem, I extracted all the files with the class, but it does me no good because I CANT EXECUTE IT!
How can I execute these again?

So you apparently changed Window's file associations to have java.exe open .jar files? Right?
How are you trying to start the game - what is the command you use? Do the game instructions tell you how to start it?
The error message "Cannot find the main class, program will now exit..." means that the jar is not intended to be an executable jar and is without a main class file. It could be caused by a mis-configuration of the game, also. . .
More definite information iis needed.

Can I increase heap memory without specify any class or jar file??

Hi,
I tried to increase my heap memory in this way :
java -Xms256m -Xmx256m
but I got an error ... it's seem that I must specify a class java or a .jar file ...
This is the error :
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
where options include:
-client to select the "client" VM
-server to select the "server" VM
-hotspot is a synonym for the "client" VM [deprecated]
The default VM is client.
-cp <class search path of directories and zip/jar files>
-classpath <class search path of directories and zip/jar files>
A ; separated list of directories, JAR archives,
and ZIP archives to search for class files.
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version print product version and exit
-version:<value>
require the specified version to run
-showversion print product version and continue
-jre-restrict-search | -jre-no-restrict-search
include/exclude user private JREs in the version search
-? -help print this help message
-X print help on non-standard options
-ea[:<packagename>...|:<classname>]
-enableassertions[:<packagename>...|:<classname>]
enable assertions
-da[:<packagename>...|:<classname>]
-disableassertions[:<packagename>...|:<classname>]
disable assertions
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions
-agentlib:<libname>[=<options>]
load native agent library <libname>, e.g. -agentlib:hprof
see also, -agentlib:jdwp=help and -agentlib:hprof=help
-agentpath:<pathname>[=<options>]
load native agent library by full pathname
-javaagent:<jarpath>[=<options>]
load Java programming language agent, see java.lang.instrument
-splash:<imagepath>
show splash screen with specified image
can I increase heap memory without specify any class or jar file??
thx

chiara wrote:
Hi,
I tried to increase my heap memory in this way :
java -Xms256m -Xmx256m
but I got an error ... it's seem that I must specify a class java or a .jar file ...
This is the error :
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
can I increase heap memory without specify any class or jar file??The job of java.exe is to execute java bytecode.
What is it supposed to do with your request to use 256m of memory for heap
when you are not giving it a class or a jar to run?

JAVA invocation interface (jar files) BouncyCastle

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