when i start the batclient i get an error saying i dont have the right java version. i have mac os 10.4.11 with the latest apple java version (version 7). here is the error i get:

Java Web Start - Launch File Error
Unable to launch Batclient

details:

An error occurred while launching/running the application.

Title: Batclient
Vendor: Balanced Alternative Techniques ry
Category: Launch File Error

Unsupported JNLP version in launch file: 1.6+. Only versions 1.0 and 1.5 are supported with this version. Please contact the application vendor to report this problem.

I have basically the same setup and the same problem. Here is the exception information:

JNLPException[category: Launch File Error : Exception: null : LaunchDesc:
<jnlp spec="1.6+" codebase="http://www.bat.org/batclient/" href="http://www.bat.org/batclient/batclient.jnlp">
<information>
<title>Batclient</title>
<vendor>Balanced Alternative Techniques ry</vendor>
<homepage href="http://www.bat.org/batclient/docs/help.html"/>
<description>Batclient</description>
<description kind="short">A graphical user interface for BatMUD.</description>
<icon href="http://www.bat.org/batclient/images/icon.gif" kind="default"/>
<shortcut online="true">
<menu submenu="BatMUD"/>
</shortcut>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se java-vm-args="-Xmx128m" version="1.6+"/>
<jar href="http://www.bat.org/batclient/lib/bat_client.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/bat_resources.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/bat_interfaces.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/bat_html.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/jdom.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/bsh-2.0b4.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/swingx.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/swingx-bean.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/swingx-ws-2008_08_03.jar" download="eager" main="false"/>
<jar href="http://www.bat.org/batclient/lib/swing-worker.jar" download="eager" main="false"/>
</resources>
<application-desc main-class="com.mythicscape.batclient.Main"/>
</jnlp> ]
at com.sun.javaws.Launcher.handleLaunchFile(Launcher.java:193)
at com.sun.javaws.Launcher.run(Launcher.java:165)
at java.lang.Thread.run(Thread.java:613)

Try deleting the batclient folder and downloading the client again (move scripts etc to safe location first though). To me it sounds like you have an old version of batclient and for some reason it won't update itself.

i got it working on another computer running the lastest version of mac os X. now im having a problem of saving all my action buttons and the layout of the ui. i saved the first time but now i have to reorganize the windows and make all my action buttons all over again. it becomes very tedious after a while. how do i save the ui and buttons???

I also have the exact same problem. I'd like to try Torc's suggestion but I'm afraid I don't understand. When I try to download the client, it gives me a 1.2kb file named "batclient.jnlp" and nothing else. I run that and I get the error. I tried looking for any created folders but there are none. :(

This is the Java launch (Java Web Start) file (.jnlp) for actually downloading the Batclient.

Your Java Runtime Environment (JRE) should recognize it from your browser and start the download by processing the file accordingly.

For some reason, it seems your Java doesn't "get started". Try to get Java to manually run that file. (You can also view it, it's plaintext.)

Also, if you're a MAC OSX user check http://developer.apple.com/java/ and http://developer.apple.com/Java/download/ for any upgrades.

The newest version of Batclient requires Java 1.6.0 (or Java 6).

That said, there's an older UNSUPPORTED version available at http://www.bat.org/batclient/v1.71-depreca...client-old.jnlp -- which should work with Java 1.5.0 versions.

Thanks for the reply Amarth, as well as the help in-game. Like I said to you earlier, Java 1.6.0 isn't yet available for OSX 10.4 Tiger. Having said that, I found this unofficial OSX port of Java 6 here:

http://landonf.bikemonkey.org/static/soylatte/

I downloaded the binary but haven't been able to make it work although I'm pretty sure I'm doing something wrong. If someone savvy could check it out, they might be able to make it work. In the meantime, I'll be using the old version of the client.

A few notes about Java and mac. Java 1.6 requires OS 10.5+, but it also requires an Intel mac. If you meet those two requirements, you can go to the apple link Amarth provided previously and bat client should work fine.

If you have 10.4, you can try the SoyLatte thing mentioned, though it's relatively complex.

If you have a PowerPC (G3, G4, etc.) you're out of luck. This is the boat I'm in and I'm still looking for a solution. If I figure something out I'll let you know. In the mean time, I'm glad we have the old, even if unsupported, version to use!

-Nu