On Tue, Dec 2, 2008 at 10:24 AM, Rich Hickey <[EMAIL PROTECTED]> wrote:
>
> Proxy generation was the last runtime code-gen/classloader
> requirement. So the path is clear for building Clojure apps without
> runtime codegen, for delivery in those environments that preclude it
> (e.g. Android, unsigned applets). Looking forward to feedback from
> people trying to reach those targets.
You asked for it. :-)
Here's a minimal applet .clj:
(ns net.n01se.Tree
(:gen-class
:extends java.applet.Applet))
Since it's missing a main fn, I would expect an exception like the this:
java.lang.UnsupportedOperationException: net.n01se.Tree/-main not
defined (NO_SOURCE_FILE:0)
Using svn 1136 I can compile and get the above exception from a normal
Clojure REPL, but if I try to use it as an applet:
$ appletviewer test.html
java.lang.ExceptionInInitializerError
at clojure.lang.Namespace.<init>(Namespace.java:31)
at clojure.lang.Namespace.findOrCreate(Namespace.java:116)
at clojure.lang.Var.internPrivate(Var.java:95)
at net.n01se.Tree.<clinit>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at java.lang.Class.newInstance0(Class.java:372)
at java.lang.Class.newInstance(Class.java:325)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:798)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:727)
at sun.applet.AppletPanel.run(AppletPanel.java:380)
at java.lang.Thread.run(Thread.java:636)
Caused by: java.security.AccessControlException: access denied
(java.lang.RuntimePermission createClassLoader)
at
java.security.AccessControlContext.checkPermission(AccessControlContext.java:342)
at
java.security.AccessController.checkPermission(AccessController.java:553)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at
java.lang.SecurityManager.checkCreateClassLoader(SecurityManager.java:611)
at java.lang.ClassLoader.<init>(ClassLoader.java:218)
at java.security.SecureClassLoader.<init>(SecureClassLoader.java:71)
at java.net.URLClassLoader.<init>(URLClassLoader.java:99)
at clojure.lang.DynamicClassLoader.<init>(DynamicClassLoader.java:30)
at clojure.lang.RT.<clinit>(RT.java:243)
... 14 more
You can see it found my class okay, but it looks like there may be
some dynamic classloader stuff still going on?
--Chouser
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