Re: inheriting a main method
Toffstier wrote:
On 15 Sep., 03:32, "Mike Schilling" <mscottschill...@hotmail.com>
wrote:
Arne Vajh?j wrote:
If we can assume that Java version >= 1.5, main thread has
thread id 1 and max. stack depth is 1000:
StackTraceElement[] ste =
ManagementFactory.getThreadMXBean().getThreadInfo(1,
1000).getStackTrace(); String clznam =
ste[ste.length-1].getClassName();
Is that really going to give you the class mentioned in the
command
line rather than the class which defines the static main()
method?
You are correct. It returns the parent class where main is
defined.
Right. My strong impression is that trying to figure out which
subclass was mentioned in the command line is simply hopeless (or
at
best extremely non-portable) and that, accordingly, the OP should
figure out some other way of doing things. Fortunately, there are
dozens of them.
public static String getMainClassName()
{
for(final Map.Entry<String, String> entry :
System.getenv().entrySet ())
{
if(entry.getKey().startsWith("JAVA_MAIN_CLASS"))
return entry.getValue();
}
throw new IllegalStateException("Cannot determine main class.");
}
How is JAVA_MAIN_CLASS getting set? It's not something the JVM does
automagically.
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