Attempted to fix androids "ill-advised or mistaken usage of a core class" went bad

Question

After trying to fix this on my own from what I have seen around the net I cannot still figure out what this means:

[2013-08-15 23:58:27 - StudioTab] Dx 
trouble processing "javax/xml/namespace/QName.class":

Ill-advised or mistaken usage of a core class (java.* or javax.*)
when not building a core library.

This is often due to inadvertently including a core library file
in your application's project, when using an IDE (such as
Eclipse). If you are sure you're not intentionally defining a
core class, then this is the most likely explanation of what's
going on.

However, you might actually be trying to define a class in a core
namespace, the source of which you may have taken, for example,
from a non-Android virtual machine project. This will most
assuredly not work. At a minimum, it jeopardizes the
compatibility of your app with future versions of the platform.
It is also often of questionable legality.

If you really intend to build a core library -- which is only
appropriate as part of creating a full virtual machine
distribution, as opposed to compiling an application -- then use
the "--core-library" option to suppress this error message.

If you go ahead and use "--core-library" but are in fact
building an application, then be forewarned that your application
will still fail to build or run, at some point. Please be
prepared for angry customers who find, for example, that your
application ceases to function once they upgrade their operating
system. You will be to blame for this problem.

If you are legitimately using some code that happens to be in a
core package, then the easiest safe alternative you have is to
repackage that code. That is, move the classes in question into
your own package namespace. This means that they will never be in
conflict with core system classes. JarJar is a tool that may help
you in this endeavor. If you find that you cannot do this, then
that is an indication that the path you are on will ultimately
lead to pain, suffering, grief, and lamentation.

[2013-08-15 23:58:27 - StudioTab] Dx 1 error; aborting
[2013-08-15 23:58:27 - StudioTab] Conversion to Dalvik format failed with error 1

I have no idea what this is really telling me or where to start look. Am I recursively including a library somehow? My build path under order and export are as thus:

Google APIs [Android 3.0]
Android Dependencies
   annotations.jar
Android Private Libraries
    A ton of jars for various functionality i need: CSV writing, talking to the           google calendar somehow...etc...etc.  They are jars I found on the net, not ripped from another project but found to solve problems i.e. how to access google calendar from the device and read/write to it etc...  is this where my problem lies? I can provide a complete list of the jars I am using here.
android-support-v4.jar  

I added that one as an external jar myself. I forget what it needs it for but if I remove it it cannot use somethings weird stuff like FragmentActivity and that.

So where do I even begin to look so I can pick this project back up again...get it compiling and running on an emulator.

LIBS folder is as thus: Volume in drive D is LargeWorkDisk Volume Serial Number is 206C-D951

     Directory of D:\Programming\StudioTab\libs

    08/16/2013  12:39 AM    <DIR>          .
    08/16/2013  12:39 AM    <DIR>          ..
    08/15/2013  09:45 PM         1,700,072 android-1.5_r4-sources.jar
    08/15/2013  09:45 PM         2,136,034 android-1.5_r4.jar
    08/15/2013  09:45 PM            55,191 commons-codec-1.3-sources.jar
    08/15/2013  09:45 PM            46,725 commons-codec-1.3.jar
    08/15/2013  09:45 PM            74,976 commons-logging-1.1.1-sources.jar
    08/15/2013  09:45 PM            60,686 commons-logging-1.1.1.jar
    08/15/2013  09:45 PM            53,983 google-api-client-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM            44,653 google-api-client-1.5.0-beta.jar
    08/15/2013  09:45 PM            13,356 google-api-client-extensions-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM            15,276 google-api-client-extensions-1.5.0-beta.jar
    08/15/2013  09:45 PM             3,459 google-api-client-extensions-android2-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM             4,556 google-api-client-extensions-android2-1.5.0-beta.jar
    08/15/2013  09:45 PM           309,295 google-collections-1.0-sources.jar
    08/15/2013  09:45 PM           639,592 google-collections-1.0.jar
    08/15/2013  09:45 PM           188,771 google-http-client-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM           196,915 google-http-client-1.5.0-beta.jar
    08/15/2013  09:45 PM             6,433 google-http-client-extensions-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM             7,807 google-http-client-extensions-1.5.0-beta.jar
    08/15/2013  09:45 PM             3,021 google-http-client-extensions-android2-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM             3,854 google-http-client-extensions-android2-1.5.0-beta.jar
    08/15/2013  09:45 PM             6,638 google-http-client-extensions-android3-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM            10,418 google-http-client-extensions-android3-1.5.0-beta.jar
    08/15/2013  09:45 PM            35,765 google-oauth-client-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM            34,394 google-oauth-client-1.5.0-beta.jar
    08/15/2013  09:45 PM            38,030 google-oauth-client-extensions-1.5.0-beta-sources.jar
    08/15/2013  09:45 PM            48,289 google-oauth-client-extensions-1.5.0-beta.jar
    08/15/2013  09:45 PM           140,057 gson-1.6-sources.jar
    08/15/2013  09:45 PM           164,984 gson-1.6.jar
    08/15/2013  09:45 PM           640,031 guava-r09-sources.jar
    08/15/2013  09:45 PM         1,143,921 guava-r09.jar
    08/15/2013  09:45 PM           390,195 httpclient-4.0.3-sources.jar
    08/15/2013  09:45 PM           292,893 httpclient-4.0.3.jar
    08/15/2013  09:45 PM           291,844 httpcore-4.0.1-sources.jar
    08/15/2013  09:45 PM           172,888 httpcore-4.0.1.jar
    08/15/2013  09:45 PM           200,880 jackson-core-asl-1.6.7-sources.jar
    08/15/2013  09:45 PM           201,086 jackson-core-asl-1.6.7.jar
    08/15/2013  09:45 PM           283,945 jdo2-api-2.3-eb-sources.jar
    08/15/2013  09:45 PM           192,820 jdo2-api-2.3-eb.jar
    08/15/2013  09:45 PM           476,722 joda-time-1.6-sources.jar
    08/15/2013  09:45 PM           534,827 joda-time-1.6.jar
    08/15/2013  09:45 PM            39,665 jsontoken-1.0-sources.jar
    08/15/2013  09:45 PM            37,877 jsontoken-1.0.jar
    08/15/2013  09:45 PM            33,015 jsr305-1.3.9.jar
    08/15/2013  09:45 PM           147,086 junit-4.8.2-sources.jar
    08/15/2013  09:45 PM           237,344 junit-4.8.2.jar
    08/16/2013  12:39 AM                 0 libsdir.txt
    08/15/2013  09:45 PM            11,358 LICENSE
    08/15/2013  09:45 PM            14,146 opencsv-2.3.jar
    08/15/2013  09:45 PM            12,986 opengl-api-gl1.1-android-2.1_r1-sources.jar
    08/15/2013  09:45 PM            18,492 opengl-api-gl1.1-android-2.1_r1.jar
    08/15/2013  09:45 PM           125,968 ormlite-android-4.24-javadoc.jar
    08/15/2013  09:45 PM            22,285 ormlite-android-4.24-sources.jar
    08/15/2013  09:45 PM            32,707 ormlite-android-4.24.jar
    08/15/2013  09:45 PM           216,486 ormlite-core-4.24.jar
    08/15/2013  09:45 PM           140,718 protobuf-java-2.2.0-sources.jar
    08/15/2013  09:45 PM           320,306 protobuf-java-2.2.0.jar
    08/15/2013  09:45 PM               501 readme.html
    08/15/2013  09:45 PM           158,114 servlet-api-2.5-sources.jar
    08/15/2013  09:45 PM           105,112 servlet-api-2.5.jar
    08/15/2013  09:45 PM            25,014 transaction-api-1.1-sources.jar
    08/15/2013  09:45 PM            15,071 transaction-api-1.1.jar
    08/15/2013  09:45 PM           124,724 xmlParserAPIs-2.6.2.jar
    08/15/2013  09:45 PM           128,334 xpp3-1.1.4c-sources.jar
    08/15/2013  09:45 PM           120,069 xpp3-1.1.4c.jar
                  64 File(s)     12,952,660 bytes
                   2 Dir(s)  2,057,125,945,344 bytes free

Answer 1

Dalvik JVM does not support the entire API of Oracle JDK. I think javax.* packages aren't available to Android. For example there's no AWT or Swing or Graphics2D of Java on Android.

From the error, it looks like you app is using this Class: http://docs.oracle.com/javase/7/docs/api/javax/xml/namespace/QName.html

This shouldn't happen If you set up your IDE to use Android SDK instead of JDK.

Answer 2

If you are using Maven to build then make sure that your dependency on the android SDK has scope of provided, otherwise you will get this message as DEX tries to include all the classes in the android.jar.

Ie

  <dependency>
      <groupId>android</groupId>
      <artifactId>android</artifactId>
      <version>4.4.2_r3</version>
      <scope>provided</scope>
  </dependency>