Mhm, this looks like a part of Java 1.3 is missing. The so called collection framework, which is an API containing nice Objects like the Arraylist. If you want to be on the safe side try downloading the Java SDK 1.3 from sun.

Well the thing is... I'm an idiot I have no clue either where to get this SDK/what to do with it once I have downloaded it.

(BTW, I'm on a Mac. OS 8.6, if that matters)

You need MRJ 2.2 or later if your on os 8.6, plus the swingal.jar.
Try downloading MacPhex 0.4.2 from the <a href="http://macxster.n3.net"> macXster</a> website.

Amazing coincidence. Same day, same problem. Down to the container.Process.event. I'm on MacOS 9.1 with MRJ 2.2.3. Freaky.

Exception occurred during event dispatching:
java.lang.NoClassDefFoundError: java/util/ArrayList
at phex.download.DownloadFile.<init>(DownloadFile.jav a:57)
at phex.download.DownloadManager.addFileToDownload(Co mpiled Code)
at phex.MainFrame.download(Compiled Code)
at phex.MainFrame$MouseHandler.mouseClicked(MainFrame .java:3372)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEvent Multicaster.java)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEvent Multicaster.java)
at java.awt.Component.processMouseEvent(Compiled Code)
at java.awt.Component.processEvent(Compiled Code)
at java.awt.Container.processEvent(Compiled Code)
at java.awt.Component.dispatchEventImpl(Compiled Code)
at java.awt.Container.dispatchEventImpl(Compiled Code)
at java.awt.Component.dispatchEvent(Compiled Code)
at java.awt.LightweightDispatcher.retargetMouseEvent( Compiled Code)
at java.awt.LightweightDispatcher.processMouseEvent(C ompiled Code)
at java.awt.LightweightDispatcher.dispatchEvent(Compi led Code)
at java.awt.Container.dispatchEventImpl(Compiled Code)
at java.awt.Window.dispatchEventImpl(Compiled Code)
at java.awt.Component.dispatchEvent(Compiled Code)
at java.awt.EventDispatchThread.run(EventDispatchThre ad.java)

This happens whenever I try to download anything, from any server. I dowloaded swing.jar and installed it with the Applescript. Other than this one flaw, I really like Phex, keep up the good work