"ant build" fails with JAVA_HOME set incorrectly

[arunmarathe]

"ant build" failed with JAVA_HOME set to a directory one level below where it should have been. I fixed the problem by fixing the JAVA_HOME correctly. (In my environment, JAVA_HOME was set correctly to begin with.) I am opening this bug in case this is an OLTPBench issue where it might be attaching 'jre' at the end.

My fix appears after the error log.

Thanks,
Arun

[root@vm-arunm oltpbench]# ant build
Buildfile: /mnt/ssd2/oltpbench/build.xml

build:

BUILD FAILED
/mnt/ssd2/oltpbench/build.xml:76: Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.
It is currently set to "/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre"

Total time: 0 seconds

Workaround:

[root@vm-arunm oltpbench]# export JAVA_HOME="/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64"; ant build
Buildfile: /mnt/ssd2/oltpbench/build.xml

build:
    [javac] Compiling 66 source files to /mnt/ssd2/oltpbench/build
    [javac] Note: /mnt/ssd2/oltpbench/src/com/oltpbenchmark/benchmarks/tpch/TPCHLoader.java uses or overrides a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: /mnt/ssd2/oltpbench/src/com/oltpbenchmark/DBWorkload.java uses unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
     [copy] Copying 6 files to /mnt/ssd2/oltpbench/build
    [javac] Compiling 5 source files to /mnt/ssd2/oltpbench/build/tests

BUILD SUCCESSFUL
Total time: 3 seconds