Error in applet in the navigator with fingerprint reader

First thank you very much for your time, I have a problem with the development of an applet to control users via fingerprint, as developed in eclipse using the DigitalPersona SDK, the problem is when I run it from a web page browser,

Exception in thread "AWT-EventQueue-2" java.lang.RuntimeException: com.digitalpersona.onetouch.jni.JniException
 at com.digitalpersona.onetouch.capture._impl.DPFPCaptureFactoryImpl$CaptureImpl.startCapture(DPFPCaptureFactoryImpl.java:187)
 at CDesVerifinger.formComponentShown(CDesVerifinger.java:76)
 at CDesVerifinger.access$1(CDesVerifinger.java:73)
 at CDesVerifinger$1.componentShown(CDesVerifinger.java:64)
 at java.awt.Component.processComponentEvent(Unknown Source)
 at java.awt.Component.processEvent(Unknown Source)
 at java.awt.Container.processEvent(Unknown Source)
 at java.awt.Component.dispatchEventImpl(Unknown Source)
 at java.awt.Container.dispatchEventImpl(Unknown Source)
 at java.awt.Component.dispatchEvent(Unknown Source)
 at java.awt.EventQueue.dispatchEvent(Unknown Source)
 at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
 at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
 at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
 at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
 at java.awt.EventDispatchThread.run(Unknown Source)

    Caused by: com.digitalpersona.onetouch.jni.JniException
 at com.digitalpersona.onetouch.jni.AcquisitionLibrary.getInstance(AcquisitionLibrary.java:50)
 at com.digitalpersona.onetouch.jni.Acquisition.<init>(Acquisition.java:45)
 at com.di开发者_开发技巧gitalpersona.onetouch.capture._impl.DPFPCaptureFactoryImpl$CaptureImpl.startCapture(DPFPCaptureFactoryImpl.java:104)
 ... 16 more

Thank you very much for any help

good day

You need to add the dptojni.jar to the library of your project, it is in c:/programs files/digital persona/bin/java. Or you can get the class jniException and add it to your project.

Having the same problem, here is someone telling that is necessary put

capturer.setPriority(DPFPCapturePriority.CAPTURE_PRIORITY_LOW);

after calling createCapture to solve it. I will try this answer now.

You have to sign the jar files. That's what I did, and now it's working.

Make sure you have instatiated the DPFPCapture object before calling the setCapturePriority method and also make sure you stop capture after you have finished using the capture object