Re: Is System Call can be invoked in the Servlet Container
If you are running under a security manager - you'll need to tweak your security policy to allow that class to make native calls. -Tim (The guy who never did that before) Ke Song wrote: John, Thanks a lot for your prompt help. The point that I wanted to find out is if there is restriction on invoking system call on Servlet container or other J2EE app server. My senario is : My servlet will load a native library via JNI, the native code has system calls. It seems that the system call is not working(it's working if I load it in a standalone java application). So i am wondering if there is restriction on invoking system calls in the servlet container. I searched specification doc on Servlet and J2EE, not able to find related topic. If anybody has any point, please share with me. Thanks, Ke - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Is System Call can be invoked in the Servlet Container
The JVM itself has native method system calls, so I highly doubt it.
John
On Mon, 14 Jul 2003 12:40:32 -0700, Ke Song <[EMAIL PROTECTED]> wrote:
John,
Thanks a lot for your prompt help. The point that I wanted to find out is
if there is restriction on invoking system call on Servlet container or
other J2EE app server. My senario is : My servlet will load a native
library via JNI, the native code has system calls. It seems that the
system call is not working(it's working if I load it in a standalone java
application). So i am wondering if there is restriction on invoking
system calls in the servlet container. I searched specification doc on
Servlet and J2EE, not able to find related topic. If anybody has any
point, please share with me.
Thanks,
Ke
-Original Message-
From: John Turner [mailto:[EMAIL PROTECTED]
Sent: Monday, July 14, 2003 12:14 PM
To: Tomcat Users List
Subject: Re: Is System Call can be invoked in the Servlet Container
String command = new String();
command = "put your system call here";
java.lang.Process process = java.lang.Runtime.getRuntime().exec(command);
process.waitFor();
if (process.exitValue() != 0)
{
throw new Exception("My System call did not work! Exit value = " +
process.exitValue() );
}
John
On Mon, 14 Jul 2003 12:15:46 -0700, Ke Song <[EMAIL PROTECTED]> wrote:
Hi,
Is System Call allowed in the Servlet Container? Please help.
Thanks.
Ke
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RE: Is System Call can be invoked in the Servlet Container
John,
Thanks a lot for your prompt help. The point that I wanted to find out is if there is
restriction on invoking system call on Servlet container or other J2EE app server. My
senario is : My servlet will load a native library via JNI, the native code has system
calls. It seems that the system call is not working(it's working if I load it in a
standalone java application). So i am wondering if there is restriction on invoking
system calls in the servlet container. I searched specification doc on Servlet and
J2EE, not able to find related topic. If anybody has any point, please share with me.
Thanks,
Ke
-Original Message-
From: John Turner [mailto:[EMAIL PROTECTED]
Sent: Monday, July 14, 2003 12:14 PM
To: Tomcat Users List
Subject: Re: Is System Call can be invoked in the Servlet Container
String command = new String();
command = "put your system call here";
java.lang.Process process = java.lang.Runtime.getRuntime().exec(command);
process.waitFor();
if (process.exitValue() != 0)
{
throw new Exception("My System call did not work! Exit value = " +
process.exitValue() );
}
John
On Mon, 14 Jul 2003 12:15:46 -0700, Ke Song <[EMAIL PROTECTED]> wrote:
> Hi,
> Is System Call allowed in the Servlet Container? Please help.
>
> Thanks.
> Ke
>
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
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Re: Is System Call can be invoked in the Servlet Container
String command = new String();
command = "put your system call here";
java.lang.Process process = java.lang.Runtime.getRuntime().exec(command);
process.waitFor();
if (process.exitValue() != 0)
{
throw new Exception("My System call did not work! Exit value = " +
process.exitValue() );
}
John
On Mon, 14 Jul 2003 12:15:46 -0700, Ke Song <[EMAIL PROTECTED]> wrote:
Hi,
Is System Call allowed in the Servlet Container? Please help.
Thanks.
Ke
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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