Question

Following error I got in my application. I can’t understand what is it and what is the solution ? Please guide me

   java.lang.UnsatisfiedLinkError: no otfxjni 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.digitalpersona.onetouch.jni.FeatureExtractionLibrary.<clinit>(FeatureExtractionLibrary.java:16)
        at com.digitalpersona.onetouch.jni.FeatureExtractor.<clinit>(FeatureExtractor.java:8)
        at com.digitalpersona.onetouch.processing._impl.DPFPFeatureExtractionFactoryImpl$FeatureExtractionImpl.<init>(DPFPFeatureExtractionFactoryImpl.java:32)
        at com.digitalpersona.onetouch.processing._impl.DPFPFeatureExtractionFactoryImpl.createFeatureExtraction(DPFPFeatureExtractionFactoryImpl.java:19)
        at VarifyServer.extractFeatures(VarifyServer.java:121)
        at VarifyServer.callClient(VarifyServer.java:71)
        at Bean.callServer(Bean.java:30)
        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.apache.el.parser.AstValue.invoke(AstValue.java:131)
        at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
        at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
        at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:88)
        at javax.faces.event.ActionEvent.processListener(ActionEvent.java:77)
        at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:743)
        at javax.faces.component.UICommand.broadcast(UICommand.java:368)
        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:447)
        at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)
        at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
        at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:17)
        at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:94)
        at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:54)
        at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:26)
        at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)
        at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:160)
        at com.icesoft.faces.webapp.http.servlet.SessionDispatcher$1.service(SessionDispatcher.java:38)
        at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19)
        at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:63)
        at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:55)
        at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:19)
        at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
        at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:91)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Unknown Source)

Answer 1

your com.digitalpersona.onetouch.jni.FeatureExtractionLibrary class is using JNI to call out to the otfxjni native library (.so or .dll extension). However that library is not in your library path.

You can manually set this path by adding the -Djava.library.path=<path to otfxjni file> argument to your runtime process.