ADDITIONAL SYSTEM INFORMATION :
Unpacked on windows
A DESCRIPTION OF THE PROBLEM :
The Oracle archives for server-jre-8u171-windows-x64.tar.gz and server-jre-8u172-windows-x64.tar.gz miss jre/bin/javaw.exe and jre/bin/jabswitch.exe. Both files have been shipped with the previous update and there is no mentioning of this incompatible change in the release notes.
BTW: i also noticed that bin/java.exe and jre/bin/java.exe launcher binaries actually differ in content:
REGRESSION : Last worked in version 8u162
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
unpack server-jre-8u171-windows-x64.tar.gz and start jre/bin/javaw.exe
EXPECTED VERSUS ACTUAL BEHAVIOR :
command is missing
CUSTOMER SUBMITTED WORKAROUND :
copy executable from JDK which might be a licensing problem. Using java.exe instead of javaw.exe is not an option because it opens up additional console windows.
FREQUENCY : always