NPE in IPCameraFrameGrabber Android

The problem is a null pointer exception being thrown in the IPCameraFrameGrabber class when no header fields are found. The problem is the following code on line 60 and 61.

this.headerfields = this.connection.getHeaderFields();
if(this.headerfields.containsKey("Content-Type"))

getHeaderFields returns null for me, then obviously the if statement causes a NPE. I'm not sure what the header fields are needed for, but adding a null check for headerfields in the if statement may fix it.

Here is the stack trace, it says the exception happened on line 80, but when I click it, it takes me to line 60 in the IPCameraFrameGrabber class.

07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ java.lang.NullPointerException
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at org.bytedeco.javacv.IPCameraFrameGrabber.start(IPCameraFrameGrabber.java:80)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at com.example.javacv_test3.MyActivity.onCreate(MyActivity.java:66)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.Activity.performCreate(Activity.java:5231)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2169)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2264)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.ActivityThread.access$800(ActivityThread.java:144)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.os.Handler.dispatchMessage(Handler.java:102)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.os.Looper.loop(Looper.java:136)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at android.app.ActivityThread.main(ActivityThread.java:5139)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at java.lang.reflect.Method.invokeNative(Native Method)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:515)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
07-07 12:51:02.300  22769-22769/com.example.javacv_test3 W/System.err﹕ at dalvik.system.NativeStart.main(Native Method)

Please could you confirm this bug, thank you.

My code below for reference

try
{
    IPCameraFrameGrabber ipGrabber = new IPCameraFrameGrabber("my_ip_camera_url"); // url works with VLC
    ipGrabber.start(); // npe here
    // more code
}
catch(NullPointerException npe)
{
    // :(
}

bytedeco / javacv

NPE in IPCameraFrameGrabber Android #172