RFR: 8315097: Rename createJavaProcessBuilder [v6]

[Leo Korinth]

> Rename createJavaProcessBuilder so that it is not used by mistake instead of createTestJvm.
> 
> I have used the following sed script: `find -name "*.java" | xargs -n 1 sed -i -e "s/createJavaProcessBuilder(/createJavaProcessBuilderIgnoreTestJavaOpts(/g"`
> 
> Then I have manually modified ProcessTools.java. In that file I have moved one version of createJavaProcessBuilder so that it is close to the other version. Then I have added a javadoc comment in bold telling:
> 
>    /**
>      * Create ProcessBuilder using the java launcher from the jdk to
>      * be tested.
>      *
>      * <p><b> Please observe that you likely should use
>      * createTestJvm() instead of this method because createTestJvm()
>      * will add JVM options from "test.vm.opts" and "test.java.opts"
>      * </b> and this method will not do that.
>      *
>      * @param command Arguments to pass to the java command.
>      * @return The ProcessBuilder instance representing the java command.
>      */
> 
> 
> I have used the name createJavaProcessBuilderIgnoreTestJavaOpts because of the name of Utils.prependTestJavaOpts that adds those VM flags. If you have a better name I could do a rename of the method. I kind of like that it is long and clumsy, that makes it harder to use...
> 
> I have run tier 1 testing, and I have started more exhaustive testing.

Leo Korinth has updated the pull request incrementally with six additional commits since the last revision:

 - static import
 - copyright
 - whitespace
 - whitespace
 - sed
 - fix test/lib/jdk/test/lib/process/ProcessTools.java

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15452/files
  - new: https://git.openjdk.org/jdk/pull/15452/files/f80dda8d..2f57a32d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15452&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15452&range=04-05

  Stats: 1580 lines in 560 files changed: 44 ins; 34 del; 1502 mod
  Patch: https://git.openjdk.org/jdk/pull/15452.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15452/head:pull/15452

PR: https://git.openjdk.org/jdk/pull/15452