System.LoadLibrary() doesn't find Library - java

I have a library /home/me/myfolder/mylib.so
and when executing
System.out.println(System.getProperty("java.library.path"));
I get the /home/me/myfolder. But if I try to load it:
System.loadLibrary("mylib");
This error happens:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no mylib.so in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at MainClass.main(MainClass.java:11)
Already tried to use mylib.so instead. The library was created from Haskell Code.

On Linux/Unix, I believe it will look for lib<name>.so, so try renaming your library to /home/me/myfolder/libmylib.so, and loading it with System.loadLibrary("mylib");.

Related

java.lang.UnsatisfiedLinkError: no bridge2java in java.library.path

Can anyone write me how to deal with this error? I am running a project with eclipse (from 2012-2014) configured for Windows. I do it on a Mac but Parallels whit windows 11
What library to use and how to add it, if something else needs to be done ?
Exception in thread "main" java.lang.UnsatisfiedLinkError: no bridge2java 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.ibm.bridge2java.OleEnvironment.Initialize(OleEnvironment.java:10)
at tr.com.yurticikargo.kopsproject.client.YKEdsFrame.main(YKEdsFrame.java:41)

Exception in thread "main" java.lang.UnsatisfiedLinkError: no openalprjni in java.library.path

I'm trying to use Java bindings for the project https://github.com/openalpr/openalpr
When I try to launch the java application i got this exception
Exception in thread "main" java.lang.UnsatisfiedLinkError: no openalprjni in java.library.path
I try to load the library in this way:
System.loadLibrary("openalprjni");
The file named libopenalprjni.so it's in this dir
/Users/mario/Sviluppo/openalpr/src/bindings/java
so i'm trying, with eclipse, to load it with this configuration as a VM argument
-Djava.library.path=/Users/mario/Sviluppo/openalpr/src/bindings/java/ but nothing happens
What i'm doing wrong?
Include the openalpr.dll and the required all other dll files from the binaries to your JRE or JDK bin directory. Then try to compile and run your program.
Worked for me.
for me worked:
System.load("/usr/lib/libopenalprjni.so");

Exception in thread "main" java.lang.UnsatisfiedLinkError: no jep in java.library.path

I have 'libjep.so' file after downloading jep and I also had set the environmental variable LD_LIBRARY_PATH in ~./bashrc as shown below:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/python2.7/dist-packages/jep/libjep.so
as well as in runtime
System.load("/usr/local/lib/python2.7/dist-packages/jep/libjep.so");
But when I have the follwing line in my code,
Jep jep = new Jep();
It shows the below error:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no jep in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at jep.Jep$TopInterpreter$1.run(Jep.java:118)
at java.lang.Thread.run(Thread.java:745)
Thanks
You need to set the LD_LIBRARY_PATH to the directory containing your library, and not your library itself like this
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/python2.7/dist-packages/jep/
You can also try adding this argument to the java command when you start your java application so java can find the library
-Djava.library.path=/usr/local/lib/python2.7/dist-packages/jep/
The java.lang.UnsatisfiedLinkError occurs only when if the required library is not in the path or it is already loaded.
Couple of things you need to make sure is :
1) You're performing System.load(....) inside static block so that its executed only once.
2) Also, you can try removing extension.

Exception in thread "main" java.lang.UnsatisfiedLinkError: no libopencv_java247 in java.library.path

In oder to create a simple opencv java project I folled this tutorial step by step but
when I run the associated exemple I get the folowwing error :
Exception in thread "main" java.lang.UnsatisfiedLinkError: no libopencv_java247 in java.library.path
EDIT
I read all similar questions and I try those solutions
--
-Djava.library.path=/home/noura/Desktop/opencv/build/lib/
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/noura/Desktop/opencv/build/lib
but the problem is not solved
just I should write
System.loadLibrary("opencv_java247");
instead of
System.loadLibrary("libopencv_java247");

Exception in thread "AWT-EventQueue-0"

Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: no jpcap in java.library.path
is the error I keep getting, do I need to add a path to jcap? or change my configurations?
UnsatisfiedLinkError means that Java cannot find a native library. If you're on Windows, it's looking for jpcap.dll; if it's Linux or OS X, it's probably jpcap.so. You need to set the system property java.library.path to include the directory that contains the library.
For example, if you have jpcap.dll in a directory named C:\MyProject:
java -Djava.library.path=C:\MyProject com.mypackage.MyProgram

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