[JDEV] peculiar Connection problem !

[Mike Prince]

Another note is that you cannot (in my experience) simply set the Java
compiler flags to target 1.1, you actually have to use the Java 1.1
compiler.  When I tried compiling using the 1.2 compiler, the bytecode
would not run on my browser (IE).

Be sure you understand your audience.  I made the decision to support
all older browsers and back ported all my Java libraries.  This way
users don't have to install anything :)

Thanks,

Mike

> -----Original Message-----
> From: jdev-admin at jabber.org [mailto:jdev-admin at jabber.org] On 
> Behalf Of Dov B Katz
> Sent: Friday, July 11, 2003 6:04 AM
> To: jdev at jabber.org
> Subject: Re: [JDEV] peculiar Connection problem !
> 
> 
> The jabber server needs to run on the same hostname that the 
> webserver is running on.  However, if you sign your 
> applet/jar it can connect wherever it wants, I believe. -Dov
> 
> Satish Plakote wrote:
> 
> > hi
> > I got rid of the problem by upgradding the jdk to 1.4.
> > Now i am  stuck in the security issue related to applets. 
> Mike can u 
> > tell me how did u give ur applet permission to connect to 
> > jabberserver. My applet is being served by apache server.
> >
> > Thnkx
> > Satish
> >
> > -----Original Message-----
> > From: jdev-admin at jabber.org 
> [mailto:jdev-admin at jabber.org]On Behalf Of 
> > Dov B Katz
> > Sent: Friday, July 11, 2003 3:30 PM
> > To: jdev at jabber.org; jdev at jabber.org
> > Subject: RE: [JDEV] peculiar Connection problem !
> >
> > Mike/Satish
> >
> > While the applet problem of security is indeed tied to 
> which server is 
> > used, the fundamental problem Satish is describing is due 
> to having a 
> > version of JVM which is too low to run with his particular 
> applet....
> >
> > The setKeepAlive method of java.net.Socket is only available in JRE 
> > 1.3 and higher... See the javadoc for Socket there... I'm sure he's 
> > using the standard browser install of either Sun JRE 1.1.8, or 
> > Microsoft JVM which is also <1.2 compatible.
> >
> > What you need to do is either:
> >
> > compile your applet with the target compatibility version set to 
> > 1.1.8, and see where the errors are and fix them,
> >
> > or upgrade your browser's java plugin to use Sun's JRE 1.3 
> or higher. 
> > (This may be nothing more than changing some settings, if 
> you have JVM 
> > installed already on the target machine)
> >
> > Then it is very possible that a security exception like the one 
> > described by Mike might occur. But currently, that code is never 
> > reached because the socket can't even be created to connect to 
> > anywhere.
> >
> > -Dov
> >
> > "Mike Prince" <mike at mikeprince.com> wrote:
> > >
> > >Solve the root problem; Applets can make connections back to the 
> > >server where they came from.  Just make sure that Jabber is on the 
> > >same machine, or your load balancer/firewall makes it look 
> like both 
> > >are on the same machine.
> > >
> > >I know this works because I use Jabber applet clients on 
> my website 
> > >:)
> > >
> > >Hope that helps,
> > >
> > >Mike
> > >
> > >> -----Original Message-----
> > >> From: jdev-admin at jabber.org [mailto:jdev-admin at jabber.org] On 
> > >> Behalf Of Satish Plakote
> > >> Sent: Thursday, July 10, 2003 3:42 AM
> > >> To: jdev at jabber.org
> > >> Subject: [JDEV] peculiar Connection problem !
> > >>
> > >>
> > >>
> > >>
> > >> hi
> > >> I have hit upon a problem while making a connection to a jabber 
> > >> server.. I am trying to  establish a connection to a 
> jabber server 
> > >> thro a servlet on my tomcat engine.I am doing this coz of 
> > >> restriction placed by jvm on applets to make a connection. I get 
> > >> this exception thrown when i try to make a connection.
> > >>
> > >> java.lang.NoSuchMethodError: java.net.Socket: method 
> > >> setKeepAlive(Z)V not found
> > >>         at
> > >> com.echomine.net.SocketConnector$_1.run(SocketConnector.java:280)
> > >>         at java.lang.Thread.run(Thread.java:479)
> > >>
> > >> can anyone give me tips to handle this ?
> > >> Thnkx
> > >> Satish
> > >>
> > >> _______________________________________________
> > >> jdev mailing list
> > >> jdev at jabber.org
> > >> http://mailman.jabber.org/listinfo/jdev
> > >>
> > >
> > >
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