If camera isn't connected, GRIP GUI pop-up spams the environment with UnknownHostException

[ryannazaretian]

If the wrong address is input or the camera isn't connected, GRIP will throw the UnknownHostException over and over again. Clicking cancel will close the exception, but GRIP will pop the exception back up immediately.

Thread[IP Camera raspberrpi.local Service,5,main] threw an exception

Stack Trace:

java.lang.RuntimeException: edu.wpi.grip.core.sources.GrabberService$GrabberServiceException: [IP Camera raspberrpi.local] Failed to start
    at com.google.common.base.Throwables.propagate(Throwables.java:160)
    at com.google.common.util.concurrent.AbstractExecutionThreadService$1$2.run(AbstractExecutionThreadService.java:77)
    at com.google.common.util.concurrent.Callables$3.run(Callables.java:95)
    at java.lang.Thread.run(Thread.java:745)
Caused by: edu.wpi.grip.core.sources.GrabberService$GrabberServiceException: [IP Camera raspberrpi.local] Failed to start
    at edu.wpi.grip.core.sources.GrabberService.startUp(GrabberService.java:51)
    at com.google.common.util.concurrent.AbstractExecutionThreadService$1$2.run(AbstractExecutionThreadService.java:55)
    ... 2 more
Caused by: org.bytedeco.javacv.FrameGrabber$Exception: raspberrpi.local
    at edu.wpi.grip.core.sources.IPCameraFrameGrabber.start(IPCameraFrameGrabber.java:99)
    at edu.wpi.grip.core.sources.GrabberService.startUp(GrabberService.java:49)
    ... 3 more
Caused by: java.net.UnknownHostException: raspberrpi.local
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
    at sun.net.www.http.HttpClient.New(HttpClient.java:308)
    at sun.net.www.http.HttpClient.New(HttpClient.java:326)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1169)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1105)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:999)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:933)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
    at edu.wpi.grip.core.sources.IPCameraFrameGrabber.start(IPCameraFrameGrabber.java:96)
    ... 4 more

System Info:

Property Name	Property
GRIP Version	1.3.0-rc1-9-g48dd139
java.version	1.8.0_66
javafx.version	8.0.66
os.name	Windows 10
os.version	10.0
os.arch	amd64

[ryannazaretian]

Also, there is a substantial memory leak when the camera isn't found.

[JLLeitschuh]

Oh.... Well then, thats not what I expected to happen.
Thanks for opening this.

[JLLeitschuh]

Uhhhhhh.... Well... That exception shouldn't be there.
We are running guava 19 which doesn't have that code anymore.
I have no idea why, but apparently windows is using an older version of guava.

[JLLeitschuh]

Are you building/running from source?

[ryannazaretian]

Installed through the release installer.

[AustinShalit]

The newest release (1.5.0 solves this build issue)