Re: RFR: 8295884: Implement IDE support for Eclipse [v20]

[Julian Waters]

> Eclipse is a popular and very well-known IDE in the world of Java 
> development, utilized widely in many contexts, by beginners and experienced 
> teams alike. Although a relatively lightweight IDE, it features surprisingly 
> powerful indexing and code analysis capabilities, as well as useful tools, 
> among which are make and Ant integration. While the tools it provides are not 
> always as sophisticated as other IDEs (IntelliJ IDEA will likely come to mind 
> as one such competitor), the simplicity of using it, as well as the 
> reliability of this rugged IDE makes up greatly for the slightly less 
> advanced tooling. Eclipse requires very little starting infrastructure in the 
> workspace for all these features and indexing support as well, which makes it 
> a good candidate for developing on the JDK.
> 
> This enhancement adds 4 extra targets to the make system for generating a 
> basic Eclipse Workspace that provides almost full indexing support for the 
> JDK, with varying levels as desired, from a minimalistic option only 
> including the Java Virtual Machine's source code, to generating a workspace 
> with both Java and C/C++ natures included, which allows for using Eclipse's 
> unique ability to quickly swap between Java and C/C++ mode to work on both 
> native and Java sources at the same time. Cross Compiling support is 
> available, and in its entirety the change touches very little of the existing 
> make system, barring its own Makefile within the ide subdirectory.
> 
> Indexing capabilities utilizing the enhancement:
> <img width="960" alt="java" 
> src="https://user-images.githubusercontent.com/32636402/197784819-67ec7de4-7e27-4f33-b738-59b75a9e4403.PNG";>
> <img width="787" alt="escape" 
> src="https://user-images.githubusercontent.com/32636402/197784843-df8621a8-7b0a-42da-86f4-3afb92de0f71.PNG";>

Julian Waters has refreshed the contents of this pull request, and previous 
commits have been removed. The incremental views will show differences compared 
to the previous content of the PR. The pull request contains one new commit 
since the last revision:

  Merge remote-tracking branch 'upstream/master' into eclipse

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10853/files
  - new: https://git.openjdk.org/jdk/pull/10853/files/71a89d2c..bd5f620b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10853&range=19
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10853&range=18-19

  Stats: 79 lines in 1 file changed: 51 ins; 26 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10853.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10853/head:pull/10853

PR: https://git.openjdk.org/jdk/pull/10853