appVersion is just a string, appData is a weak reference but nothing is null, as I said the app works outside of the iOS simulator. I think that it does not like weak references. What could be the cause of the NPE? Maybe those pointers? Maybe the weak reference is not created at all in the translated code (build bug)? Regards Il giorno lunedì 3 maggio 2021 alle 13:27:51 UTC+2 Steve Hannah ha scritto:
> When running with the debugger (in Xcode) it will stop on these error. > When running normally, it "catches" them and proceeds. > > ((AppData)appData.get()).appVersion > > That doesn't look safe. You say appData is a weak reference? Then get() > may return null? Then the .appVersion will be an NPE, which is essentially > what you're seeing. > > On Sun, May 2, 2021 at 11:27 PM 'P5music' via CodenameOne Discussions < > [email protected]> wrote: > >> >> I compiled my app with maven and generated the iOS Xcode project. >> When I run it into the iOS simulator (iPad 8th gen) I get this early >> error: >> Thread 4: EXC_BAD_ACCESS (code=1, address=0x30) >> at this instruction >> return (*(struct >> obj__com_myapp_app_AppData*)__cn1T).com_myapp_app_AppData_appVersion; >> Where only the .com_myapp_app_AppData_appVersion part is in red. The iOS >> build code is below. >> >> It happens at >> ((AppData)appData.get()).appVersion >> Inside AppJSONData class, that has a weak reference to the AppData >> instance. >> That seems to be a CodenameOne internal problem, not of my app, because >> it does not happen either on the simulator, or on Android, or a real iOS >> device (32bit). >> Am I right? >> What’s happening. How can it be avoided? Should weak references be >> avoided? I think this one can be removed because it has the same app >> lifetime, but there are also others that are dynamic. >> Also it can be something that is wrong in the CN1 maven system to be >> fixed. >> Thanks in advance >> >> #include "com_myapp_app_AppData.h" >> #include "com_myapp_app_AppData.h" >> #include "com_myapp_app_AppJSONData.h" >> #include "java_io_IOException.h" >> #include "java_lang_NullPointerException.h" >> #include "java_lang_String.h" >> #include "java_lang_ref_WeakReference.h" >> const struct clazz *base_interfaces_for_com_myapp_app_AppData[] = {}; >> struct clazz class__com_myapp_app_AppData = { >> DEBUG_GC_INIT &class__java_lang_Class, 999999, 0, 0, 0, 0, >> &__FINALIZER_com_myapp_app_AppData ,0 , &__GC_MARK_com_myapp_app_AppData, >> 0, cn1_class_id_com_myapp_app_AppData, "com.myapp.app.AppData", 0, 0, 0, >> JAVA_FALSE, &class__java_lang_Object, >> base_interfaces_for_com_myapp_app_AppData, 0, 0, 0 >> , 0, 0, 0, 0, 0, 0}; >> >> JAVA_OBJECT get_field_com_myapp_app_AppData_appVersion(JAVA_OBJECT >> __cn1T) { >> return (*(struct >> obj__com_myapp_app_AppData*)__cn1T).com_myapp_app_AppData_appVersion; >> } >> >> -- >> You received this message because you are subscribed to the Google Groups >> "CodenameOne Discussions" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/codenameone-discussions/c0d25bdf-85a4-4253-ade1-fcaed6c484dbn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/codenameone-discussions/c0d25bdf-85a4-4253-ade1-fcaed6c484dbn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > Steve Hannah > Software Developer > Codename One > http://www.codenameone.com > -- You received this message because you are subscribed to the Google Groups "CodenameOne Discussions" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/codenameone-discussions/0a3f4bbd-c6a1-49e9-90d5-738f88666ea4n%40googlegroups.com.
