8231769: Test tools/javac/tree/MakeTypeTest.java fails with -Xcheck:jni
Summary: Delete local jni handles in create_from_platform_dependent_str() after upcall to Java.
Reviewed-by: dholmes, hseigel
/build/
/dist/
/.idea/
nbproject/private/
/webrev
/.src-rev
/.jib/
.DS_Store
.metadata/
.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
**/JTreport/**
**/JTwork/**