Develop Reference

Trouble with JDK on Mac OS X

I have Mac OS X 10.13.6. Previously I had the official JDK 8 installed which used to work fine but recently I switched to the Homebrew version and also upgraded to JDK 10. This has suddenly broken my java setup. Now when I try to launch Webstorm I get the following error:
com.intellij.ide.plugins.PluginManager$StartupAbortedException: java.lang.reflect.InvocationTargetException
at com.intellij.ide.plugins.PluginManager.a(PluginManager.java:78)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.ide.plugins.PluginManager.a(PluginManager.java:75)
... 1 more
Caused by: java.lang.UnsatisfiedLinkError: /Applications/WebStorm.app/Contents/jdk/Contents/Home/jre/lib/libawt.dylib: dlopen(/Applications/WebStorm.app/Contents/jdk/Contents/Home/jre/lib/libawt.dylib, 1): Library not loaded: /System/Library/Frameworks/JavaVM.framework/Versions/A/Frameworks/JavaNativeFoundation.framework/Versions/A/JavaNativeFoundation
Referenced from: /Applications/WebStorm.app/Contents/jdk/Contents/Home/jre/lib/libawt.dylib
Reason: image not found
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1845)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at java.awt.Toolkit$3.run(Toolkit.java:1636)
at java.awt.Toolkit$3.run(Toolkit.java:1634)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.loadLibraries(Toolkit.java:1633)
at java.awt.Toolkit.<clinit>(Toolkit.java:1673)
at com.intellij.ui.AppUIUtil.updateFrameClass(AppUIUtil.java:155)
at com.intellij.idea.StartupUtil.prepareAndStart(StartupUtil.java:94)
at com.intellij.idea.MainImpl.a(MainImpl.java)
at com.intellij.idea.MainImpl.start(MainImpl.java:43)
... 6 more
The folder /System/Library/Frameworks/JavaVM.framework/Versions/A/Frameworks/JavaNativeFoundation.framework/Versions/A/ is not there and I can't find any instructions online on how to install it. I tried installing Oracle JDK 8 from the official binaries again but the installation fails with no details. I managed to install Oracle JDK 10 from the official binaries but the folder still isn't there. How can I fix this?
Thanks.

So I came across this post that lead me to the solution. I used Pacifist to extract JavaVM.framework from the High Sierra install dmg.

How to remove this Exception "Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopencv_objdetect in java.library.path"

I'm working on Face Recognition Project by using OpenCV 2.4.9, JavaCV 0.7,JAVA version 8 and Eclipse IDE... I am getting these Exceptions continuously.. Is there something wrong in the follwoing code? It's not my complette code...
Please Someone help me as soon as possible...
import com.googlecode.javacpp.Loader;
import com.googlecode.javacv.cpp.opencv_objdetect;
Loader.load(opencv_objdetect.class);
Exceptions:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopencv_objdetect 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:711)
at com.googlecode.javacpp.Loader.load(Loader.java:586)
at com.googlecode.javacpp.Loader.load(Loader.java:540)
at com.googlecode.javacv.cpp.opencv_objdetect.<clinit>(opencv_objdetect.java:91)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.googlecode.javacpp.Loader.load(Loader.java:561)
at FaceRecognizer.<init>(FaceRecognizer.java:56)
at FaceRecognizer.main(FaceRecognizer.java:112)
Caused by: java.lang.UnsatisfiedLinkError: C:\Users\XYX\AppData\Local\Temp\javacpp183187286948746\jniopencv_objdetect.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.load0(Unknown Source)
at java.lang.System.load(Unknown Source)
at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:700)
... 8 more

This page gives a description of how to get an OpenCV Java sample running. There should be two things that you need to do:
You need to call System.LoadLibrary specifying the OpenCV DLLs that it uses
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
Make sure the DLL in somewhere where it can be found by the JVM. There are a few ways if doing that. I don't use Eclipse but this seems to give a good explanation. Alternatively, a simple bodge just to get things working is to drop the DLL into the windows\system32 directory
Finally there may be an issue if you are running a 64 bit JVM but trying to use a 32 bit DLL. If you are still having trouble make sure you are using matching JVM and DLL.

It looks like one of the java libraries that you are using in your project is using jni calls that uses dll files. Do you have the library installed correctly? It looks like it is called opencv or something that is related to jniopencv_objdetect.dll

rJava and java web app integration error

Trying to call R from Java Program and we see the following error:
Please make sure that the JRI native library is in a directory listed in java.library.path.
java.lang.UnsatisfiedLinkError: D:\Apps\Analytics\statistics\R\sdk\library\rJava
\jri\x64\jri.dll: %1 is not a valid Win32 application
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1880)
at java.lang.Runtime.loadLibrary0(Runtime.java:849)
at java.lang.System.loadLibrary(System.java:1088)
at org.rosuda.JRI.Rengine.<clinit>(Rengine.java:19)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)

This and this answer helped me to solve same issue.
I used newer tool Dependencies and found that R.dll and jvm.dll was not found.
So I added R.dll to the path as is written in JRI FAQ

Trying to make java application (Executable Jar) that uses OpenCV portable. Getting unsatisfied link error

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

Error while launching my java application(swt) on Mac

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.