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de42dce4c4
we updated tools/java/build.xml recently to only build for java-11. so
if
- the `java` executable in `$PATH` points to a java which is neither
java-8 nor java-11.
- java-8 is installed
java-8 is used to execute the cassandra-stress tool. and we would have
following failure:
```
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/cassandra/stress/Stress has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recogniz
es class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:621)
```
in order to be compatible with the bytecode targeting java-11, let's run
cassandra-stress with java-11. we do not need to support java-8, because
the new tools/java is now building cassandra-stress targeting java-11 jre.
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closes scylladb/scylladb#22142