Re: Incorrect cast hides full stack trace

Oh wow.  Yes, you're correct.  Massive air swing by me.  lol.  Thanks.

On Monday, 4 May 2026 at 5:04:40 pm UTC+10 Frank wrote:

Click on the arrow before 'Uncaught exception' in the console?
This should expand the exception?

Op maandag 4 mei 2026 om 07:27:00 UTC+2 schreef Craig Mitchell:

To reproduce:

1. Create a sample project.  Eg:  https://github.com/NaluKit/gwt-maven-springboot-archetype

2. Add a silly cast:   Integer notAnInt = (Integer)(Object)"hi";

3. Run super dev mode.

4. Visit your page.

5. It will crash on the cast, view the console.  It looks like this:

No mention of where your silly cast is.

However if you right click and "Copy console".  You get the following that does have where your silly cast is (highlighted in yellow):

Throwable.java:114 Uncaught Error: java.lang.ClassCastException
    at WPd_g$.Dz_g$ [as createError_0_g$] (Throwable.java:114:1)
    at WPd_g$.Oz_g$ [as initializeBackingError_0_g$] (Throwable.java:106:1)
    at WPd_g$.wz_g$ (Throwable.java:66:1)
    at WPd_g$.cA_g$ (Exception.java:29:1)
    at WPd_g$.kA_g$ (RuntimeException.java:29:1)
    at new WPd_g$ (ClassCastException.java:27:1)
    at dlf_g$ (InternalPreconditions.java:155:1)
    at qlf_g$ (InternalPreconditions.java:139:1)
    at plf_g$ (InternalPreconditions.java:134:1)
    at Lxc_g$ (Cast.java:74:1)
Dz_g$ @ Throwable.java:114
Oz_g$ @ Throwable.java:106
wz_g$ @ Throwable.java:66
cA_g$ @ Exception.java:29
kA_g$ @ RuntimeException.java:29
WPd_g$ @ ClassCastException.java:27
(anonymous) @ InternalPreconditions.java:155
(anonymous) @ InternalPreconditions.java:139
plf_g$ @ InternalPreconditions.java:134
Lxc_g$ @ Cast.java:74
amf_g$ @ App.java:43
OAc_g$ @ test_00046App__EntryMethodHolder.java:3
(anonymous) @ ModuleUtils.java:44
wI_g$ @ Impl.java:293
(anonymous) @ Impl.java:352
(anonymous) @ Impl.java:72
initializeModules_0_g$ @ ModuleUtils.java:55
(anonymous) @ GreetingService_TypeSerializer.java:10
PendingScript
h @ test.nocache.js:8
(anonymous) @ test.nocache.js:9
g @ test.nocache.js:6
w @ test.nocache.js:9
test @ test.nocache.js:17
(anonymous) @ test.nocache.js:18
PendingScript
Recompiler.loadApp @ test:348
(anonymous) @ test:568
(anonymous) @ test:286
__globals.callbacks.<computed> @ test:300
(anonymous) @ test?user.agent=safari&_callback=__gwt_sdm_globals.callbacks.c1777871930876:1
PendingScript
Recompiler.__injectScriptTag @ test:311
Recompiler.__jsonp @ test:304
Recompiler.compile @ test:284
Main.compile @ test:562
executeMain @ test:594
(anonymous) @ test:599
(anonymous) @ test:608
PendingScript
injectScriptTag @ test.nocache.js:52

Any idea why it doesn't show in the normal console?

--
You received this message because you are subscribed to the Google Groups "GWT Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/google-web-toolkit/a2804209-b316-4ed8-9bc3-e1c27255e97cn%40googlegroups.com.