Java and Android both also contain a large number of packages not in common.

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See this subthread, Which are the 37 APIs? and my Correction subpost. The accused APIs all have filenames beginning with java or javax, and in the current Android SDK there are 53 like this, pretty close to the 51 APIs that Oracle initially accused.

For example java.math is certainly needed for interoperability and was originally in Oracle's list of accused APIs. But Oracle removed it in revising the complaint, along with ten APIs related to concurrency and XML, if I remember correctly.

Apache Harmony 5 provided 129 packages with names beginning java or javax, along with some additional packages beginning with org (many of which seem to be used by Android).

It might well be argued that Google's subset of APIs eliminated some core Java APIs (like AWT) that were not essential having been improved upon by alternatives (like SWING).

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"Prolog is an efficient programming language because it is a very stupid theorem prover." -- Richard O'Keefe

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