[rfc][icedtea-web] add classapth resolving to rust lunchers (and thus make them work)

[Jiri Vanek]

Hello!

Here is huge patch which is making rust launchers finally possible. Unluckily it does several things
at once. I will be happy to split them as reviewer requests. Maybe some of them (like javaws.jar)
requires special discussion.

* makfile+java:
- changed name of netx.jar to javaws jar
  - properly used macros all over makefile.am
configure:
- introduced configure switch --with-itw-libs which determines if you build portable or distribution
result. The goal is to achieve, that you can coexists  system itw, and in parallel custom portable
instance by default, without fear of interference. Still the libraries order can be changed in
runtime pretty much.
* rust
- inlcuded laoding of ITW_LIBS in compile time, propagating all jars so they can be reusable. Ketp
xboothclassapth propagated to, but is use donly in debug output.
- new module jars_helper is here to try to search for resources based  on ITW_LIBS and locations
where deps are (we currently have windows and linux dirs named differently). About the members and
order of LOCAL_PATH, I have many concerns. The current one is most free one.
  - persisted the error of javafx being on normal classapth. Shouldnt it be on bootclassapth? (see
nashorn around same lines) and see
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2018-November/040492.html)
  - added method which composes cp/bootcp from freshl located members and from java resources (jdk8
and down only!)
- main method made aware of this classpaths and so it it is included in params for
os.spawn_java_process together with main method and  custom arguments from cmdline and ...
  ***fanfares*** IT WORKS ***fanfares***
- os dependent modules got : x ; classpathDelimiter
- moved  TestLogger to utils - is now shared.

So this patch, in is making  rust lunchers to do something. Is there something missing/redundant in
this todo list?
todo:
  -J arguments
  splash (+headless)
  LAUNCHER_FLAGS=-Xms8m (?)
  file logging
  jdk from path(I dont know how to make it properly)
  jdk9+ support (--patch/--add*)
  jdk9+ support (rt.jar, fxrt.jar, nashorn.jar)

Thanx!
  J.
-- 
Jiri Vanek
Senior QE engineer, OpenJDK QE lead, Mgr.
Red Hat Czech
jvanek at redhat.com    M: +420775390109
-------------- next part --------------
A non-text attachment was scrubbed...
Name: rustJarsResolverAndClassPathComposer.patch
Type: text/x-patch
Size: 47085 bytes
Desc: not available
URL: <http://mail.openjdk.java.net/pipermail/distro-pkg-dev/attachments/20181214/4762453e/rustJarsResolverAndClassPathComposer-0001.patch>