java.lang.NullPointerException: This exception has no message.
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java.lang.NullPointerException:
at java.io.FileInputStream.
(FileInputStream.java:122) at java.net.SocketInputStream.
(SocketInputStream.java:46) at java.net.PlainSocketImpl.getInputStream(PlainSocketImpl.java:420)
at java.net.Socket$1.run(Socket.java:330)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.Socket.getInputStream(Socket.java:328)