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Top Forums Programming Runtime.getSystem.exec() function waits for child Post 302211574 by ramen_noodle on Thursday 3rd of July 2008 08:07:44 PM
Old 07-03-2008
This '.' delimited function naming stuff is a pita. Java is a hog imho. The answer is to use whatever analog to waitpid with wnohang as an option is available.
 

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jstack(1)						      General Commands Manual							 jstack(1)

NAME
jstack - stack trace SYNOPSIS
jstack [ option ] pid jstack [ option ] executable core jstack [ option ] [server-id@]remote-hostname-or-IP DESCRIPTION
jstack prints Java stack traces of Java threads for a given Java process or core file or a remote debug server. For each Java frame, the full class name, method name, 'bci' (byte code index) and line number, if available, are printed. With the -m option, jstack prints both Java and native frames of all threads along with the 'pc' (program counter). For each native frame, the closest native symbol to 'pc', if available, is printed. C++ mangled names are not demangled. To demangle C++ names, the output of this command may be piped to c++filt. NOTE - This utility is unsupported and may or may not be available in future versions of the J2SE SDK. jstack is not currently available on Windows platforms or on the Linux Itanium platform. PARAMETERS
Options are mutually exclusive. Option, if used, should follow immediately after the command name. pid process id for which the stacktrace is to be printed. The process must be a Java process. To get a list of Java processes running on a machine, jps may be used. executable Java executable from which the core dump was produced. core core file for which the stack trace is to be printed. remote-hostname-or-IP remote debug server's (see jsadebugd) hostname or IP address. server-id optional unique id, if multiple debug servers are running on the same remote host. OPTIONS
-m prints mixed mode (both Java and native C/C++ frames) stack trace. -h Prints a help message. -help Prints a help message. SEE ALSO
pstack(1) c++filt(1) jps(1) jsadebugd(1) KNOWN BUGS
Mixed mode stack trace, the -m option, does not work with the remote debug server. 13 June 2004 jstack(1)
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