JNIFlags.cmake versus FindJNI.cmake

[Alan Burlison]

A question: Why does 
hadoop-common-project/hadoop-common/src/CMakeLists.txt use 
JNIFlags.cmake in the same directory to set things up for JNI 
compilation rather than FindJNI.cmake, which comes as a standard cmake 
module? The checks in JNIFlags.cmake make several assumptions that I 
believe are only correct on Linux whereas I'd expect FindJNI.cmake to be 
more platform-independent.

If I'm reading JNIFlags.cmake properly it only exports JNI_INCLUDE_DIRS 
and JNI_LIBRARIES, both of which appear to also be exported by 
FindJNI.cmake.

Looking for guidance...

--
Alan Burlison
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