Can I compile a CN1 library project as a 'normal' JAR?

[sidiabale]

Hi,

1. Is it possible to create a regular JAR file from a CN1 library project such that I can use this jar in an unrelated Java project?
2. If so, what steps must I follow?
3. Would there be any limitations/constraints introduced to Java project by using this jar?

 

Thanks

 

[Shai Almog]

Hi,
if you use native interfaces those would not be available.
Sure just add another target to the build.xml that packages a jar, the build.xml does most of the work of building the cn1lib and building a jar is part of that process.

[sidiabale]

Hi,

I don't use native interfaces. I was able to build the jar based on your suggestion. When I try using it in a Java Project, I get the following error upon attempting to make a network request:

java.lang.IllegalStateException: This method should not be invoked by external code!

[Network Thread] 0:0:0,83 - java.lang.IllegalStateException: This method should not be invoked by external code!

   at com.codename1.ui.util.EventDispatcher$CallbackClass.run(EventDispatcher.java:84)

   at com.codename1.ui.Display.callSerially(Display.java:714)

   at com.codename1.ui.util.EventDispatcher.fireActionEvent(EventDispatcher.java:365)

   at com.codename1.io.NetworkManager$NetworkThread.run(NetworkManager.java:287)

   at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:176)

Exception in thread "Network Thread" java.lang.NullPointerException

   at com.codename1.ui.Display.getResourceAsStream(Display.java:2431)

   at com.codename1.impl.CodenameOneThread.getStack(CodenameOneThread.java:140)

   at com.codename1.impl.CodenameOneThread.handleException(CodenameOneThread.java:187)

   at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:179)

Is this something that can easily be tackled?

[Shai Almog]

Hi,
I assumed your app uses plain Java code without relying on things such as networking which are obviously Codename One specific.
You can use the JavaSE port of Codename One but that means you will need to add that into your unrelated project.

[sidiabale]

Hi,

It worked; thanks!

PS: I also needed to apply the tricks mentioned here. It's a bit awkward though that I must include a dependency on UI components even if I'm making a non-UI Java application but that's not in anyway a show stopper.