If the newly built JDK fails to run ("DOA"), we will get a strange error
message about jdk.compiler-gendata errors from make. The reason is not at all
obvious.
Instead, we should make a simple check that we can actually use the new JDK
before starting to use it for the first time, and report clearly to the user if
this is not the case.
-------------
Commit messages:
- 8333282: Better warning if newly build JDK fails to run
Changes: https://git.openjdk.org/jdk/pull/19484/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19484&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8333282
Stats: 72 lines in 2 files changed: 66 ins; 2 del; 4 mod
Patch: https://git.openjdk.org/jdk/pull/19484.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/19484/head:pull/19484
PR: https://git.openjdk.org/jdk/pull/19484
