When I Open My Server I'm The Only One Who Can Join In
In The Console It Writes :

java.io.IOException: The handle is invalid
at java.io.FileInputStream.readBytes(Native Method) ~[?:1.7.0_45]
at java.io.FileInputStream.read(Unknown Source) ~[?:1.7.0_45]
at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_45]
at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_45]
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) ~[?:1.7.0_45]
at sun.nio.cs.StreamDecoder.implRead(Unknown Source) ~[?:1.7.0_45]
at sun.nio.cs.StreamDecoder.read(Unknown Source) ~[?:1.7.0_45]
at java.io.InputStreamReader.read(Unknown Source) ~[?:1.7.0_45]
at java.io.BufferedReader.fill(Unknown Source) ~[?:1.7.0_45]
at java.io.BufferedReader.readLine(Unknown Source) ~[?:1.7.0_45]
at java.io.BufferedReader.readLine(Unknown Source) ~[?:1.7.0_45]
at lk.run(SourceFile:78) [minecraft_server.1.7.1.jar:?]

when my friends trying to log in it tells him this:

java.et.ConnectException: Connection timed out: no further information: /(I Had Hidden My Ip But There Is An Ip Here):25565