Develop Reference

GLPK java java.lang.UnsatisfiedLinkError: Can't find dependent libraries

The dynamic link library for GLPK for Java could not be loaded.
Consider using
java -Djava.library.path=
The current value of system property java.library.path is:
\\MILP\lib\glpk-4.55\w64
Exception in thread "main" java.lang.UnsatisfiedLinkError:
\\MILP\lib\glpk-4.55\w64\glpk_4_55_java.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at org.gnu.glpk.GLPKJNI.<clinit>(GLPKJNI.java:24)
at org.gnu.glpk.GLPK.glp_version(GLPK.java:2259)
at TestMain.main(TestMain.java:7)
I have added the correct JAR file
I have given the correct native path for the library
Still the problem persists,
One doubt I have is that the \MILP\lib\glpk-4.55\w64\glpk_4_55_java.dll file is flawed. I checked it using dependencyWalker there it shows some warnings
Error: At least one module has an unresolved import due to a missing export function in an implicitly dependent module.
Error: Modules with different CPU types were found.
Any leads would be appreciated

I also faced same issue. I copied glpk_4_55.dll and glpk_4_55_java.dll to C:\Windows\System32 and Everything works fine for me.

You can add the C:\Program Files\GLPK\glpk-4.55\w64 folder to your PATH environment variable
or
copy the glpk_4_55.dll and glpk_4_55_java.dll to C:\Windows\System32 as suggested by Pradeepb

JNI UnsatisfiedLinkError dependent libraries

I have a JNI dll along with a jar file that I have created on a machine with eclipse.
I am trying to deploy this to another machine and cannot get past the exception
Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\CcmAccess\CcmJNIBase.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Meth
at java.lang.ClassLoader.loadLibrary1(Unknown Source)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.sig.ccm.CcmBase.<clinit>(CcmBase.java:8)
at ReadTimeDomain.setupSample(ReadTimeDomain.java:24)
at ReadTimeDomain.main(ReadTimeDomain.java:97)
I have another program that prints out the java.library.path and I have verified the dll that this dll depends on as well as this dll are in the java.library.path.
I have read posts where they should go in the current directory and that doesn't work.
I have read posts where they should go in the jre/bin and that gets the same result.
Any help would be appreciated.
Edit:
If I take everything out of the path and force the classpath to only have the jar file and "." I get the message
Exception in thread "main" java.lang.UnsatisfiedLinkError: no CcmJNIBase in java.library.path
When I add the location of this dll into the path C:\CcmAccess I get the full message:
Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\CcmAccess\CcmJNIBase.dll: Can't find dependent libraries
On the machine that this seems to work all I had to do was add the dependent dll to my classpath.

Double check your java.library.path value.
Make sure that you are using an absolute path.
Relative paths will make you think your java.library.path is correct, when actually it is actually incorrect.
If you are adding "." in your java.library.path, then you need to double check the "current working directory" when you execute your code.
If you need to use a relative path in your java.library.path, make sure that the path is relative from the "working directory" when you execute your code.

My java game runs in eclipse, but once exported it "can't find LWJGL" and won't run

I made a Java game in eclipse and when I run the executable .jar it starts up, and the loading screen starts, but then it stops and hangs. I ran it using the command line: "Java -jar filename.jar" and when the loading screen stops it displays an error. This is what the cmd shows:
E:\>Java -jar Speedrunner.jar
60Ticks, FPS:1447
60Ticks, FPS:1627
60Ticks, FPS:1380
Wed Mar 19 12:02:27 GMT 2014 INFO:Initialising sounds..
Exception in thread "Thread-2" java.lang.UnsatisfiedLinkError: no lwjgl in java.
library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at org.lwjgl.Sys$1.run(Sys.java:73)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)
at org.lwjgl.Sys.loadLibrary(Sys.java:95)
at org.lwjgl.Sys.<clinit>(Sys.java:112)
at org.lwjgl.openal.AL.<clinit>(AL.java:59)
at org.newdawn.slick.openal.SoundStore$1.run(SoundStore.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at org.newdawn.slick.openal.SoundStore.init(SoundStore.java:292)
at org.newdawn.slick.Sound.<init>(Sound.java:83)
at com.daves.first_Scroller.utils.AudioPlayer.addSound(AudioPlayer.java:29)
at com.daves.first_Scroller.utils.ResourceLoader.loadSounds(ResourceLoader.java:35)
at com.daves.first_Scroller.Game.load(Game.java:110)
at com.daves.first_Scroller.Game.tick(Game.java:160)
at com.daves.first_Scroller.Game.run(Game.java:228)
at java.lang.Thread.run(Unknown Source)
This is saying that LWJGL isn't in java.library.path I've gone to my game in the workspace and configured the build path to include all the libraries and to include them in the .jar when I export my game but I'm still getting the same problem. Does anyone know what I need to do to get this to work? (I looked in the .jar and LWJGL is there in the org file)

Export lwjgl library in your jar.
To do this, right click on the project, properties, java build path, order & export, check your library

Set the (native) library path in the command line:
Java -Djava.library.path=path/to/dir -jar filename.jar
Where dir:
[...] should contain the native part (*.dll files on windows, *.so on linux,
*.jnilib on mac, etc)
(Source)

You need to do two things: you need to include the LWJGL classes on your classpath (or in your jar), and you need to include the natives in your library path.
Exporting from eclipse doesn't automatically include your library path, which is why you're getting your error.
A utility like JarSplice or SvgExe can help with both of these things.

Lauch Eclipse SWT window application from command line error

First off. I am a newbie and green with respect to Java programming.
I created a Java Eclipse "SWT" "Application Window" on a Eclipse Kepler 4.3.1 (32-bit) running WindowBuilder and SWT (swt.jar). The design view is a composite.
The java application runs fine from Eclipse. I simply press the play button and presto.
Problem:
Issuing
java -cp . PkgNetAccelerator32.netAcceleratorApp
yields the following error message:
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/swt/widgets/Composite
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod(Unknown Source)
at sun.launcher.LauncherHelper.getMainMethod(Unknown Source)
at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.widgets.Composite
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 6 more
I was doing some research and several posts on other issues suggested that the cure is to create a manifest. I saw an article that said something like:
Select the src folder, right click and select export, then Java, then JAR file, specify Manifest.jar and a path on the folder, make sure the "Generate the manifest file" is selected, and press finish.
I created the manifest file and tried launching it with the following command line:
java -jar ../Manifest.jar -cp . PkgNetAccelerator32.netAcceleratorApp
That yielded the same error message above.
I saw another article that said that one should add in the swt.jar file, but that is taken care of by the manifest. No? Specifying "swt.jar" instead of the manifest that I created resulted in an error message:
no main manifest attribute, in ../swt.jar
That error message makes sense.
I am at a loss. How do I run the java application?
I am testing on my Windows 7 Professional 64-bit desktop, but I need to run on CENTOS too. That should be no problem, as I assume whatever the fix on Windows is, will work on CENTOS.
UPDATE:
I placed the two lib files in a /lib folder to match the answer given. I then issued the following command line and got the following error message.
C:\SoftDev\Projects\NetAccelerator\JavaWorkspace\NetAccelerator32>java -cp "bin/*;lib/*" PkgNetAccelerator32.netAcceleratorApp
Exception in thread "main" java.lang.UnsatisfiedLinkError: Cannot load 32-bit SWT libraries on 64-bit JVM
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.C.<clinit>(Unknown Source)
at org.eclipse.swt.widgets.Display.<clinit>(Unknown Source)
at PkgNetAccelerator32.netAcceleratorApp.open(netAcceleratorApp.java:43)
at PkgNetAccelerator32.netAcceleratorApp.main(netAcceleratorApp.java:33)
I found the following article, which produces a command line that works, just that is not reasonable for sending. I much rather use the answer.

Lets assume you have a eclipse project structure similar to this:
Workspace
-> Project
-> src (source code directory)
-> bin (compiled byte code directory as JAR)
-> lib (jar directory)
-> .classpath (eclipse file)
-> .project (eclipse file)
I am assuming that you are exporting the JAR as an executable JAR.
So in order to run a class in that exported JAR with another JAR from the lib directory (swt.jar) while your working directory is the Project directory you will need to execute:
java -cp "bin/*:lib/*" PkgNetAccelerator32.netAcceleratorApp
Using wildcards requires Java 6 or later
Please note: CENTOS requires : as a path separator. Windows uses a semi-colon.
This will add your classes and the swt classes onto the classpath and run your main class PkgNetAccelerator32.netAcceleratorApp
SWT 32bit vs 64bit
You will either need to use a 32bit JVM locally or continue to use a 64bit JVM and use the 64bit version of swt; see swt on windows 64 bit. I would suggest you match your version of your local JVM (32bit or 64bit) with the version that you will be running on the CENTOS machine. You will however need a different swt jar for CENTOS.

How to add CLIPC library in netbeans 7.0

CLIPC is a library for interprocess communication in Java.
I have downloaded it from https://sourceforge.net/project/platformdownload.php?group_id=255796
There were 3 files inside the downloaded zip file.
clipc.dll,
clipc.jar and
libclipc.so
Now if i try to add the extracted folder or the zip file to my project in the Netbeans libraries section, then Netbeans doesn't recognize the packages inside the CLIPC library.
On the other hand if I just add the CLIPC.jar file then Netbeans recognizes the code which I type.
But when I try to compile it I get the following exception
Exception in thread "main" java.lang.UnsatisfiedLinkError: no clipc in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1738)
at java.lang.Runtime.loadLibrary0(Runtime.java:823)
at java.lang.System.loadLibrary(System.java:1028)
at com.lts.ipc.IPCPackage.basicInitializePackage(Unknown Source)
at com.lts.ipc.IPCPackage.initializePackage(Unknown Source)
at com.lts.ipc.semaphore.SemaphoreNative.<clinit>(Unknown Source)
at com.lts.ipc.semaphore.Semaphore.connect(Unknown Source)
at com.lts.ipc.semaphore.Semaphore.<init>(Unknown Source)
at ipc.IPC.main(IPC.java:15)
Java Result: 1
This might be beacuse clipc.jar file must not have been mapped with the clipc.dll file.
So can anyone suggest me where should I place those clipc.dll and libclipc.so files ??

Found an answer to my own question
-Djava.library.path="c:\path\to\the\dir\that\contains\the\dll"
Place the above line in "Project -> Properties -> Run -> VM options" field.