Java method Runtime.getRuntime().exec fails on HP-UNIX to start netscape.

[Jakir]

Hi

Can any one help me in finding what could be wrong in the following
sample. Its not able to open Netscape on HP-UNIX.

I am new to java programming.

class javaHello {
public static void main(String[] args) {
System.out.println("Hello World.\n");
try
{
Runtime.getRuntime().exec("netscape");
}
catch(Exception e)
{
System.out.println("Failed to execute.\n");
}
}
}


Thanks & Regards
Jakir

 

[Liz]

Hi

Can any one help me in finding what could be wrong in the following
sample. Its not able to open Netscape on HP-UNIX.

I am new to java programming.

class javaHello {
public static void main(String[] args) {
System.out.println("Hello World.\n");
try
{
Runtime.getRuntime().exec("netscape");
}
catch(Exception e)
{
System.out.println("Failed to execute.\n");
}
}
}


Thanks & Regards
Jakir

I cut and pasted your program, compiled it, and ran it.
I don't have netscape so I changed "netscape" to "notepad.exe"
and it worked fine. Perhaps you need "netscape.exe" or maybe
netscape.exe is not in your path.

 

[Jakir]

Thanks for the responses.

The command "which netscape" returns "/usr/local/bin" and I had given
that path
but still it dosen't work. Also I don't get any error message. The
output hello is seen and then nothing happens.

Regards
Jakir

You need the explicit path to the executable. Runtime.exec() does
not see the path.

Looks to me like the PATH _is_ searched:

[foo]$ strace -f java Exec mozilla 2>&1 | grep mozilla

stat64("/home/gordon/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/X11/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/X11R6/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/pgm/j2sdk/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/pgm/mozilla-1.7.1/bin/mozilla",
{st_mode=S_IFREG|0755, st_size=4253, ...}) = 0
execve("/usr/local/pgm/mozilla-1.7.1/bin/mozilla",...) = 0

Maybe Jakir's problem is that netscape simply isn't _in_ his PATH.

/gordon

 

[Jakir]

Same sample works on Unix-Solaris...but it fails on HP-Unix(I am
working on version B.11.11).

Regards
Jakir

Thanks for the responses.

The command "which netscape" returns "/usr/local/bin" and I had given
that path
but still it dosen't work. Also I don't get any error message. The
output hello is seen and then nothing happens.

Regards
Jakir

(e-mail address removed) (Jakir) writes:
Runtime.getRuntime().exec("netscape");

You need the explicit path to the executable. Runtime.exec() does
not see the path.

Looks to me like the PATH _is_ searched:

[foo]$ strace -f java Exec mozilla 2>&1 | grep mozilla

stat64("/home/gordon/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/X11/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/X11R6/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/pgm/j2sdk/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/pgm/mozilla-1.7.1/bin/mozilla",
{st_mode=S_IFREG|0755, st_size=4253, ...}) = 0
execve("/usr/local/pgm/mozilla-1.7.1/bin/mozilla",...) = 0

Maybe Jakir's problem is that netscape simply isn't _in_ his PATH.

/gordon

 

[Jakir]

Hello

I was finally able to launch Netscape from Java application. Problem
was with the environment variable set by Java. After setting
XFILESEARCHPATH variable to "" I was able to start netscape through
Java application.

Thanks
Jakir

Same sample works on Unix-Solaris...but it fails on HP-Unix(I am
working on version B.11.11).

Regards
Jakir

Thanks for the responses.

The command "which netscape" returns "/usr/local/bin" and I had given
that path
but still it dosen't work. Also I don't get any error message. The
output hello is seen and then nothing happens.

Regards
Jakir

On 13 Aug 2004 08:10:07 +0200, Tor Iver Wilhelmsen wrote:
(e-mail address removed) (Jakir) writes:
Runtime.getRuntime().exec("netscape");

You need the explicit path to the executable. Runtime.exec() does
not see the path.

Looks to me like the PATH _is_ searched:

[foo]$ strace -f java Exec mozilla 2>&1 | grep mozilla

stat64("/home/gordon/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/sbin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/X11/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/X11R6/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/pgm/j2sdk/bin/mozilla", 0x61d4149c) = -1 ENOENT
stat64("/usr/local/pgm/mozilla-1.7.1/bin/mozilla",
{st_mode=S_IFREG|0755, st_size=4253, ...}) = 0
execve("/usr/local/pgm/mozilla-1.7.1/bin/mozilla",...) = 0

Maybe Jakir's problem is that netscape simply isn't _in_ his PATH.

/gordon