v3.0.x: Fix config/opal_setup_java.m4 from commit merged in #5119 #5161
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That PR accidentally changed Open MPI's build configuration infrastructure's Java toolchain detection logic so that it would, as reported by @bosilca in #5001 (comment) and tracked down by me in #5001 (comment), abort your entire in-progress Open MPI build when it failed to find an OS X/macOS JDK instead of simply falling back to checking for a JDK in locations where it would be found on other platforms. Oops…!
Signed-off-by: Bryce Glover [email protected]
(cherry picked from commit 4a05c7e)
This is the v3.0.x version of the last java configury fix from #5160 (#5119 was already merged into v3.0.x branch, so I had to make a new PR for this one additional commit -- #5118 will include this PR when @ggouaillardet pulls it in).