Create android native feature using Bayeux Protocol - java

I am trying to create an Android project and get the Bayeux Java Client library
working for it. I have the cometd library imported in my eclipse and I also added
the projects to the build path of my project.
My project builds fine, but on execution, I keep getting the NoClassDefFound error.
I am not sure, how to set my project up.
Are there any examples that I can refer to?
Any help is greatly appreciated.
Thanks,

I do the same thing and musst add some Other third party libraries. Check the NoClassDef Exception which class is needed and wasn't found. I Google the required class and add it to my libs folder. If i remember right it were some jetty client libs (3 or 4).

Related

Communication between Play! project and Java project

Good morning to all.
I have two projects, one as Java Project, and other made with Play!.
Both projects are in Eclipse IDE.
I need to consume a method in Play! project from Java Project.
How can I do that?
Thanks for helping.
I've never used the Play Framework myself, but what you usually do is put the JAR-file you like to use the method from in the "lib" folder in your play project and tell your IDE to add the lib to your java classpath. I'm guessing you're using an IDE to develop your app (would be great if you could mention it in this case).
That should be enough to access the method from the java project and compile your code. I'm not sure if you need to configure the play project to access the lib at runtime.
For more specific help you need to provide more info what you actually want to do and what tools you're using.

Android Project with ActionBarSherlock doesn't get built

I implemented the current version of ActionBarSherlock to my Android Project.
Everything works fine and I don't get any errors.
But when I try to debug or export my project I don't get an .apk-file out of my project. Just a .jar-file with the name of my project.
I've read about some problems the SDK had with building projects that contain external libraries but this was at SDK version 14 and so I hope, this bug is fixed...
So there might be another cause for this problem.
Does anybody know a possible solution?
You cannot get *.jar file as the result of building Android project. This seems very strange to me. There must be something wrong with your project settings (if you changed them), or the project you build is of the wrong type (i.e. it is Java Application instead of Android Application).
You didn't mention which IDE do you use, but I assume you use Eclipse.
Make sure you have installed Android SDK and Eclipse ADT correctly (just in case).
Next thing to try is to create a new Android Application project from existing sources (there should be such option during the process of creation).

Java - Unbounded classpath container Websphere V6 JRE

I am new to JAVA world; have worked on JSP only for few months. I have recieved code of a very large project and I am getting these two errors:
Unbound classpath container: 'JRE System Library [WebSphere v6 JRE]'
The project cannot be built until build path errors are resolved
I am not sure what do I need to download to compile this project successfully from IBM website - complete RAD or WAS.
My only task is to understand this project implementation. I won't be developing anything. Please suggest a tool to understand the code. I have downloaded nwire (never used before) but need successful compilation to use.
To fix this problem, remove the bad JRE and add one from your environment.
Use this panel:

java.lang.NoClassDefFoundError: how do I fix this error?

I am developing an Android application which makes use of the Osmdroid maps api. I have added the library as an external jar in my build path and I do not get any errors during compile time. However, upon device deployment I get the following error:
03-27 16:18:50.986: E/AndroidRuntime(3306): java.lang.NoClassDefFoundError: org.osmdroid.util.GeoPoint
I have done some googgling and it is still a mystery to me.
Here is my IDE configuration.
Eclipse: Indigo Release version 2
Java SDK: 1.6.0_31
Android SDK: 17
You need to go into Build Path/Order and Export, and check the libs as of SDK 17. Then clean your project.
I doubt about you and your project. From my viewpoint, I see you have a good design. But why are you working with Build Path / Order and Export? Honestly I've never gone to that tab from the first day I worked with Eclipse.
To import jar files as libraries, use tab Libraries -> add external Jars.
And I'm sorry I don't know about game programming, this is just a suggestion: make sure your engine fits what Android supports. For example Android doesn't support javax.imageio. If not, the app can be compiled with external jars, but can be crashed in runtime.

Error when building apk - "Multiple dex files define Lcom/google/ads/Ad"

I've been tearing my hair out over this one, for the past 3 hours I've been trying to fix it but have been unable to. I've created an android app and I'm ready to put it on the android market but I get this error when trying to export to an apk.
Unable to execute dex: Multiple dex files define Lcom/google/ads/Ad;
I've read a bunch on the problem and tried quite a few solutions but nothing has seemed to help. I've cleaned and rebuilt, I've delete the bin folder, I've made sure that the bin folder is excluded build path. Nothing's worked. If anyone could help me I would really appreciate it.
Untick the admob jar file in the "order and export" part of the "configure build path".
On another post with a problem similar to yours the only thing mentioned that you have not already considered was updating Eclipse. I don't know how or what order that you have done these "fixes" but another poster mentioned that all at once he deleted the bin directory for his project, cleaned and rebuilt the project and restarted Eclipse. After that the error disappeared.
Good Luck- Lijap
For me the error was due to 2 different versions of AdMob SDK being included accidentally.
Removing one of them fixed it.
As other have noted, this problem should be due to multiple versions of Goodle's ad SDK classes being included in the app build. What I haven't seen yet is a note that the most recent Google Play Service lib includes classes that (at least) share the same names as some in the admob sdk-- for example, I came upon this error because I was trying to build with both admob sdk v.4.0.4 and the google-play-services_lib project as a referenced project; the latter contains google-play-services.jar which contains the package com.google.ads and many of the same classes as the admob sdk. Thus it appears that the google play services lib and the admob sdk cannot both be used in a given app. My solution was to remove the admob sdk entirely from the build.
I had the same or a similar problem. My problem was that my application imported a library which used a different version of AdMob SDK.
Details of my problem:
Library used AdMob SDK 6.3.0
Application used AdMob SDK 6.1.0
Fixed it by including the same version.
For me, I just have to take out the libs folder which contains android-support-v4.jar from build path and it worked.

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