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Jaxon Reed
Jaxon Reed

No Jpcap In Java Library Path Ubuntu


When you load native library like .so on Linux or .dll on Windows using System.loadLibrary() it looks for those shared library in both PATH environment variable and java.libarary.path system property, if it doesn't find shared library it throws "Exception in thread "main" java.lang.UnsatisfiedLinkError: no in java.library.path". now trick is that in Windows it picks up dll form System32 folder and most of the time System32 exits in path so we don't usually come up with this problem. anyway if you are repeatedly getting this Error than you can try following step which may help you to resolve java.lang.UnsatisfiedLinkError in your java application.




no jpcap in java library path ubuntu


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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.


I am getting "java.lang.UnsatisfiedLinkError: no ocijdbc9 in java.library.path" and I have Oracle latest version installed on machine, Can you please help, what is wrong ? Why its not able to find suitable driver.


What does java.library.path means? is it a environment variable or a System property? Also, How to set java.library.path in Eclipse, Netbeans or IntelliJ IDE? I have an application, which uses native library, which is different in windows and Mac OSX, and I need to run that program in Eclipse, please help.


Hello everyone,I am facing same error in my project while loading the jni library.i am working with eclipse in linux and i have use the -Djava.library.path="$workspace_loc/SampleApp/resources:$env_var:PATH"path to load the library.As my jni library is in resources folder so the path is given.but it give the error...My project contains number of packages.whethr that affect the library path or not?please help me...Thanks in advance


Hello there, I am getting following error in my application, which uses Tibco RV for communication between different modules.java.lang.UnsatisfiedLinkError: Native library not found. Tried to load tibrvnative64 and tibrvnative at com.tibco.tibrv.Tibrv.loadNativeLibrary(Tibrv.java:392) at com.tibco.tibrv.Tibrv.(Tibrv.java:79) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:190) at com.tibco.tibrv.TibrvMsg.(TibrvMsg.java:25)Any idea how to fix this error?


I am getting following error "tibrvnative.dll: Can't find dependent libraries" while setting up Tibco RV in windows 8 machine. I have included tibco binaries in System path and also provided native library location inside my project in Eclipse, but still it's not able to find all dependency.Exception in thread "main" java.lang.UnsatisfiedLinkError: Native library not found. Tried to load tibrvnative64 and tibrvnative at com.tibco.tibrv.Tibrv.loadNativeLibrary(Tibrv.java:392) at com.tibco.tibrv.Tibrv.(Tibrv.java:79)Caused by: java.lang.UnsatisfiedLinkError: no tibrvnative 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.tibco.tibrv.Tibrv.loadNativeLibrary(Tibrv.java:389) ... 7 moreThat was before adding tibco installation bin directory in native library location in project settings in Eclipse, after that we are getting following error :Caused by: java.lang.UnsatisfiedLinkError: C:\tibco\tibrv\8.4\bin\tibrvnative.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.loadLibrary0(Unknown Source) at java.lang.System.loadLibrary(Unknown Source) at com.tibco.tibrv.Tibrv.loadNativeLibrary(Tibrv.java:389) ... 7 moreMy machine is Windows 8 64 bit and I am using Java 7 update 30 64 bit version.


@Anonymous, you can check following things to fix java.lang.UnsatisfiedLinkError: Native library not found1) Make sure you have tibco installation directory in your PATH environment variable e.g. TIBCO_HOME/bin, which contains all dll required e.g. tibrvnative.dll 2) Make sure you have relevant JAR file in classpath e.g. tibrvnative.jar3) Check if you have installed correct package, e.g. use tibco x86 installer for 32-bit systems, and tibco x64 installer for 64-bit systems.4) If you are running your Java program, which uses Tibco on Eclipse than add tibco/bin as native library location in project build settings, in Solaris or Linux you can specify LD_LIBRARY_PATH environment variable to include those path.Let me know if this helps


java.lang.UnsatisfiedLinkError: no ST3J 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 client.ST3.(ST3.java:151) at client.EncryptDecrypt.(EncryptDecrypt.java:49) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:119) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1073) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:824) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:135) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)Please help me!I already check java path.


This error also depends upon whether you are using System.load() or System.loadLibrary() method, because in case of load(), you give absolute path of native libraries while in case of loadLibrary() Java uses variable "java.library.path" to find native libraries.


java.lang.UnsatisfiedLinkError: no iDRMSGEBridgeDll in java.library.path at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1886) [na:1.7.0_79] at java.lang.Runtime.loadLibrary0(Runtime.java:849) [na:1.7.0_79] at java.lang.System.loadLibrary(System.java:1088) [na:1.7.0_79] at com.birlasoft.ci.iDRMSGEBridgeDll.callOcr(iDRMSGEBridgeDll.java:81)I Checked the Environment variable. and its ok as well.


Hello Kasper292,Please check if you have jnetpcap.dll in your java.library.pathAlso make sure you have winpcap installed, that will also cause this type of error even though jnetpcap.dll is found, but one of its dependencies is not.


  • path, click on Add External jars and provide the path to jnetpcap.jar.Write a program and run.

  • For Linux: (x64)Prefer Ubuntu 14.04 or 16, .04 (Stable release). It contains java as default with OS installation.

  • Install eclipse-full which will automatically install the latest supported java if it is not found. (from the command line or from software centre)

  • Install g++ and libpcap-dev (from the command line as it does not comes in the software center if itnot an updated one).

  • Download stable release of jNetPcap (for 64 bit Linux) from

  • Extract .rar file.

  • After extraction, copy libjnetpcap.so and libjnetpcap-pcap100.so in /usr/lib/ (as sudo).

  • Now open Eclipse, create the project. right click on the project, go to properties, go to java buildpath, click on Add External jars and provide the path to jnetpcap.jar.

  • Write a program and run.

What are pcap files?


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