[ipcam][lib-inside-exception] how capture internal exception when ip cam device not exits

[xlinx]

How capture internal exception when ip cam device does not exits when app-start or disconnect auto re-connect? I try to extends IpCamDevice class, but still can't catch the exception from lib inside.

com.github.sarxos.webcam.WebcamException: Cannot download image. Connect to xpad.local:8080 [xpad.local/192.168.51.220, xpad.local/fe80:0:0:0:8a4:3a69:851a:9bba%12] failed: Connection refused (Connection refused)
	at com.github.sarxos.webcam.ds.ipcam.IpCamDevice$PushImageReader.request(IpCamDevice.java:83)
	at com.github.sarxos.webcam.ds.ipcam.IpCamDevice$PushImageReader.run(IpCamDevice.java:94)
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to xpad.local:8080 [xpad.local/192.168.51.220, xpad.local/fe80:0:0:0:8a4:3a69:851a:9bba%12] failed: Connection refused (Connection refused)
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to xpad.local:8080 [xpad.local/192.168.51.220, xpad.local/fe80:0:0:0:8a4:3a69:851a:9bba%12] failed: Connection refused (Connection refused)

	at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:159)
	at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:359)
	at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381)
	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)
	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
	at com.github.sarxos.webcam.ds.ipcam.IpCamDevice.get(IpCamDevice.java:287)
	at com.github.sarxos.webcam.ds.ipcam.IpCamDevice.access$000(IpCamDevice.java:50)
	at com.github.sarxos.webcam.ds.ipcam.IpCamDevice$PushImageReader.request(IpCamDevice.java:81)
	... 1 more
Caused by: java.net.ConnectException: Connection refused (Connection refused)
Caused by: java.net.ConnectException: Connection refused (Connection refused)

	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:607)
	at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75)
	at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)

[xlinx]

HOW to capture those exceptions that happen from inside

`com.github.sarxos.webcam.WebcamException: Cannot download image. xpad.local: nodename nor servname provided, or not known at com.github.sarxos.webcam.ds.ipcam.IpCamDevice$PushImageReader.request(IpCamDevice.java:83) at com.github.sarxos.webcam.ds.ipcam.IpCamDevice$PushImageReader.run(IpCamDevice.java:94) Caused by: java.net.UnknownHostException: xpad.local: nodename nor servname provided, or not known at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:933) at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1519) at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:852) at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1509) at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1367) at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1301) at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112) at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) Caused by: java.net.UnknownHostException: xpad.local: nodename nor servname provided, or not known

at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) at com.github.sarxos.webcam.ds.ipcam.IpCamDevice.get(IpCamDevice.java:287) at com.github.sarxos.webcam.ds.ipcam.IpCamDevice.access$000(IpCamDevice.java:50) at com.github.sarxos.webcam.ds.ipcam.IpCamDevice$PushImageReader.request(IpCamDevice.java:81) ... 1 more`