Determine if only one instance is running: Difference between revisions

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m (→‎{{header|Perl 6}}: order of arguments has changed)
(Found incorrectness.)
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=={{header|Java}}==
=={{header|Java}}==
{{incorrect|Java|Doesn't compile.}}
<lang java>import java.io.IOExeception;
<lang java>import java.io.IOExeception;
import java.net.InetAddress;
import java.net.InetAddress;