My solution is now a 150K java application that resides in the same
directory as the larger bundled application (3MB) and calls
Runtime.exec() as originally suggested. The NSJavaVirtualMachine bug
went away when I changed the NSJavaNeeded key to "NO" as suggested
below. To get my app to run in its client mode, the String[] to pass to
exec() only needs to be the full path name at runtime (see below) to
the JavaApplicationStub and the option "-client" as in:
public void run_client_app() {
// NOTE: Need to change Info.plist NSJavaNeeded property to "NO"
(XCode bug)
// array of Strings with path to JavaApplicationStub and -client option
String cmdarray[] = new String[]{scriptpath, "-client"};
Process proc = null;
try {
proc = Runtime.getRuntime().exec(cmdarray);
proc.waitFor();
//System.out.println("Process exit code: " + proc.exitValue());
} catch (IOException e) {
JOptionPane.showMessageDialog(null,
"Could not find or open the
client (1).",
"IO Error",
JOptionPane.ERROR_MESSAGE);
} catch (InterruptedException e) {
JOptionPane.showMessageDialog(null,
"Could not find or open the
client (2).",
"Interrupted Error",
JOptionPane.ERROR_MESSAGE);
}
System.exit(0);
}
Thanks to all who helped. You code!
A/Prof David Darby
Em email@hidden
On 06/10/2004, at 6:25 AM, Greg Guerin wrote:
Doug Zwick <email@hidden> wrote:
-[NSJavaVirtualMachine initWithClassPath:] cannot instantiate a Java
virtual machine
my java app quits "unexpectedly" and yet Safari opens anyway!
I suspect something is fundamentally messed up in your
XCode project. Try building and running a simple test
case from the command line using javac and java, like
this code put into file ExecTest.java:
I think the problem is an NSJavaNeeded key being set to YES in the
Info.plist. Change the setting to NO and the error message should go
away.
Or remove the key entirely, though that might cause Xcode to helpfully
add
it back, again set to YES.
If that's the problem, it's a long-standing problem in Xcode, and even
in
PB, as I vaguely recall. Some templates are wrong, so please be sure
to
file a bug-report.
-- GG
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