Understanding the com.sun.* APIs being (ab)used by the community

Nicolai Parlog nipa at codefx.org
Wed Jun 3 20:02:06 UTC 2015

 Hi Stefan,

running jdeps as shown in Jonathans post (with "-v") "[p]rints all
class-level dependencies"[1]. This includes the ones which will not be
accessible in Java 9.

The bug you cite is based on a missing definition of some packages as
internal API, so running with -jdkinternals will not list them as

 so long ... Nicolai

[1] https://docs.oracle.com/javase/8/docs/technotes/tools/unix/jdeps.htm

On 03.06.2015 20:54, Stefan Fuchs wrote:
> Hi Jonathan,
> thank you for your effort.
> Note however, that the output of the current version of jdeps may
> be incomplete.
> See https://bugs.openjdk.java.net/browse/JDK-8077349 Update jdeps
> to recognize JavaFX internal packages, which seems not to be fixed
> yet.
> Stefan
>> Hi folks,
>> I've written a tool that analyses the output of JDeps. This
>> allows for me to quickly understand what com.sun.* APIs are being
>> used by projects. It basically just gives a tally of each
>> com.sun.* class that is being used, given a directory of files
>> that are output from JDeps (where each file is the output from
>> running JDeps against a single jar file). The more of these JDeps
>> text files I have, the more data I can have about what APIs are
>> being (ab)used.
>> Also, before I go further, lets try to keep this simple - I'd
>> rather not have this discussion get political about the merits of
>> modularity, choosing which APIs are most important, etc, etc,
>> etc! I'm just a lowly engineer trying to make things as good as I
>> can for you all. The remainder of the political discussion can
>> start in ~2 weeks when I'm on vacation ;-)
>> If you want to give me more data, please do the following from
>> your computer, and then email me (off-list!) the resulting text
>> file. My example command line instruction is what I run against
>> Scene Builder, but please don't send me the output against your
>> Scene Builder jar - I want to know what the output is against
>> your projects.
>> Here's the command line instruction (for my Windows 8 machine,
>> your mileage may vary):
>> jdeps -v SceneBuilder-8.0.0.jar > SceneBuilder-8.0.0.txt
>> Send me (again, off-list!) the resulting text file. I don't want
>> your jar files or anything else, I don't think my inbox could
>> handle it :-)
>> Thanks, -- Jonathan


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