I have an SWT application that I've developed on OSX, so it contains the Mac version of the SWT libraries.
Now I need to run this application on a Windows machine. I export the application to a .jar file, but when I attempt to execute the jar in Windows, I get:
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa
der.java:58)
Caused by: java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-cocoa-4236 in java.library.path
no swt-cocoa in java.library.path
Can't load library: \\psf\Home\.swt\lib\win32\x86\swt-cocoa-4236.dll
Can't load library: \\psf\Home\.swt\lib\win32\x86\swt-cocoa.dll
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 display.StoragePickupDisplay.open(StoragePickupDisplay.java:70)
at display.StoragePickupDisplay.main(StoragePickupDisplay.java:58)
... 5 more
I have added the Windows version of SWT libraries but that didn't make a difference. I need the Mac libraries to be in there for continued development. How can I get around this?
You have to add the correct SWT.jar to the classpath. You can download them here.
If you are deploying for Windows, you will have to bundle the swt jar for Windows (either 32bit or 64bit depending on the system).
If you want to create an application that runs on all platforms, have a look at this post:
Create cross platform Java SWT Application
Related
I'm getting an error where my maven build works fine (using mvn install: the produced executable runs in Windows), but when I try to run main directly from IntelliJ, it is looking for SWT's GTK dlls, which is of course not correct:
Exception in thread "main" java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-gtk-4528 in java.library.path
no swt-gtk in java.library.path
Can't load library: C:\Users\brandon\.swt\lib\win32\x86_64\swt-gtk-4528.dll
Can't load library: C:\Users\brandon\.swt\lib\win32\x86_64\swt-gtk.dll
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.internal.Converter.wcsToMbcs(Unknown Source)
at org.eclipse.swt.internal.Converter.wcsToMbcs(Unknown Source)
at org.eclipse.swt.widgets.Display.<clinit>(Unknown Source)
at edu.cornell.ansci.dairy.econ.ui.MainWindow$.main(MainWindow.scala:175)
at edu.cornell.ansci.dairy.econ.ui.MainWindow.main(MainWindow.scala)
In fact the actual file contents of the directory look correct, but this is not what is being looked for:
brandon#DESKTOP-MU8LD7O:/mnt/c/Users/brandon/.swt/lib/win32/x86_64$ ls
swt-gdip-win32-4528.dll swt-win32-4528.dll
Here is an image of the run configuration in Intellij (Default JDK is Zulu - maybe I should try to install another?):
I have made a application to grab video from a webcam and detect motion using OpenCV and JavaCV. I am trying to export as an executable jar using eclipse. The program runs fine in eclipse as does the exe jar on the computer I coded the program on.
What I am trying to accomplish is to make the exe Jar run on computers that don't have OpenCV installed. Basically what I would consider a portable application. When I run the exe jar on a different computer that has nothing installed other than the JRE I get unsatisfied link errors seen below.
Exception in thread "Video Thread" java.lang.UnsatisfiedLinkError: C:\Users\JohnD\AppData\Local\Temp\javacpp91062429652918\jniopencv_core.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
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.load0(Unknown Source)
at java.lang.System.load(Unknown Source)
at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:566)
at com.googlecode.javacpp.Loader.load(Loader.java:489)
at com.googlecode.javacpp.Loader.load(Loader.java:431)
at com.googlecode.javacv.cpp.opencv_core.<clinit>(opencv_core.java:136)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.googlecode.javacpp.Loader.load(Loader.java:453)
at com.googlecode.javacv.cpp.opencv_imgproc.<clinit>(opencv_imgproc.java:97)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.googlecode.javacpp.Loader.load(Loader.java:453)
at com.googlecode.javacv.cpp.opencv_highgui.<clinit>(opencv_highgui.java:85)
at com.googlecode.javacv.OpenCVFrameGrabber.start(OpenCVFrameGrabber.java:174)
at VideoPanel.run(VideoPanel.java:163)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsatisfiedLinkError: no opencv_core244 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 com.googlecode.javacpp.Loader.loadLibrary(Loader.java:593)
at com.googlecode.javacpp.Loader.load(Loader.java:481)
... 13 more
I have looked for a solution to what I am doing wrong. Most of the topics I have come across with unsatisfied link errors like the ones I am receiving have been trying to get it to run the first time through within there IDE, which is not the case here. I would think my dependencies are correct in the libraries in the build path since I can get it to run perfectly when I am on the computer that has everything installed but I still believe I am doing something wrong with the build.
Again I am trying to make it so the Jar can run on computers where OpenCV/JavaCV is not installed. Any help would be greatly appreciated.
If opencv is not installed in the target machine, than you need to deliver the necessary opencv's dll file and set the corresponding library path, opencv is a precondition of javacv
for example:
jar yourapp.jar -Djava.library.path="/path/to/OpenCV/library"
also check this answer
I am developing a java application on windows 7 (32 bit) machine. I used SWT in my application and run it by Java Web Start. It is working fine on windows 7 but when I try to run it on MAC OSX 10.6.8 it is unable to launch my application. I have added "swt-3.7M5-win32-win32-x86.jar" in my library.
I added the following line in my jnlp file to run it on 32 bit JVM:
<j2se version="1.6+" java-vm-args="-d32" href="http://java.sun.com/products/autodl/j2se"/>
but still it is not working.
It is throwing the following error:
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.javaws.Launcher.executeApplication(Launcher.java:1914)
at com.sun.javaws.Launcher.executeMainClass(Launcher.java:1847)
at com.sun.javaws.Launcher.doLaunchApp(Launcher.java:1609)
at com.sun.javaws.Launcher.run(Launcher.java:138)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-win32-3721 in java.library.path
no swt-win32 in java.library.path
Can't load library: /Users/Rajivj/.swt/lib/macosx/x86/libswt-win32-3721.jnilib
Can't load library: /Users/Rajivj/.swt/lib/macosx/x86/libswt-win32.jnilib
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 java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.eclipse.swt.graphics.Device.<clinit>(Unknown Source)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface$InProcess.initialize(SWTNativeInterface.java:559)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface$InProcess.access$2(SWTNativeInterface.java:558)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface.initialize_(SWTNativeInterface.java:238)
at chrriis.dj.nativeswing.swtimpl.NativeInterface.initialize(NativeInterface.java:71)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface.open_(SWTNativeInterface.java:316)
at chrriis.dj.nativeswing.swtimpl.NativeInterface.open(NativeInterface.java:100)
at rtlmatrixcloud.Main.main(Main.java:32)
... 9 more
Can anyone tell me How do I solve this problem?
Any help would be appreciated.
Thanks
Sonal
This is the root problem:
Caused by: java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-win32-3721 in java.library.path
no swt-win32 in java.library.path
Can't load library: /Users/Rajivj/.swt/lib/macosx/x86/libswt-win32-3721.jnilib
Can't load library: /Users/Rajivj/.swt/lib/macosx/x86/libswt-win32.jnilib
First check that these lib files are there. I believe they are because it says "UnsatisfiedLinkError" and does not complain that file is not found. In this case check your SWT installation. It seems these libraries do not match your JVM. Typically such exception is thrown when for example 32 bit JVM tries to invoke 64 bit library or vice versa.
I cannot find on the Internet where SWT tries to write the dll files. I have a computer where the jar does not run only because SWT cannot write DLLs.
UPDATE 1
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.javaws.Launcher.executeApplication(Unknown Source)
at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-win32-3738 in java.library.path
no swt-win32 in java.library.path
Can't load library: \\ubz01fst\Students\User2010\Com\xxx\swt-win32-3738.dll
Can't load library: \\ubz01fst\Students\User2010\Com\xxx\swt-win32.dll
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 install.Main.main(Main.java:162)
I find out the answer myself.
Since SWT 3.3 you don't have to include the native (DLL) library anymore, because they are in the jar itself and they are unpacked as soon as the SWT library is called.
The DLL files are unpacked from the jar and placed in the ".swt" folder under your "System.getProperty("user.home")".
In my case the problem was that System.getProperty("user.home") is set to "\ubz01fst\Students\User2010\Com\xxx" which is a UNC path and that is not writable ( this often happen in companies or organizations computers ).
I donno for which reason the System.getProperty("user.home") in computers is taken from the environment variable "HOMESHARE" of Windows
The solution consists in changing the System.getProperty("user.home") with a writable path, for example:
System.setProperty("user.home", System.getenv("USERPROFILE"));
before calling any SWT code.
Ok, I found the solution. The problem was about the dll generation. I was using 3.7m5 version, I downloaded a previous version (3.7) and the application ran properly.
Regards.
I have an application that uses JNI for some native functions that are in a DLL. The application runs correctly on windows XP, however when I run the program on Window 2000, I receive the following:
java.lang.UnsatisfiedLinkError: C:\Program Files\Compunetix\stixDlls\CMSCI Dll.d
ll: The specified procedure could not be found
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.load0(Unknown Source)
at java.lang.System.load(Unknown Source)
at com.compunetix.vsd.stix.main.Main.main(Main.java:165)
Any ideas?
Thanks
it might be that the dll uses another dll that is not available in that second machine. Use Dependency walker/ to find exactly what dll is missing.