#177 Launch4J doesn't accept Java 9 JDK

[TomK]

I have a Java 8 JDK and Java 9 JDK installed (no "public JRE"!)

JAVA_HOME points to the Java 8 JDK
The PATH is setup to include the Java 8 JDK

launch4j.exe complains that "This application requires a Java Runtime Environment 1.6.0 - 1.8.9

Running "java -jar launch4j.jar" works.

An EXE generated with Launch4J shows the same behaviour: even though Java 8 is available on the path and through JAVA_HOME, the generated exe still complains that no Java 1.8.0 runtime environment could be found.

Noe that for some strange reason only the Java 9 JDK is visible in the Windows registry under HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\JDK

I am using launch4j 3.11 on Windows 10

[TomK]

When using the debug option of Launch4j it seems obvious where this goes wrong:

Java min ver:   1.8.0
Java max ver:   
64-bit search:  SOFTWARE\JavaSoft\Java Runtime Environment...
32-bit search:  SOFTWARE\JavaSoft\Java Runtime Environment...
64-bit search:  SOFTWARE\JavaSoft\Java Development Kit...
32-bit search:  SOFTWARE\JavaSoft\Java Development Kit...
64-bit search:  SOFTWARE\JavaSoft\JRE...
32-bit search:  SOFTWARE\JavaSoft\JRE...
64-bit search:  SOFTWARE\JavaSoft\JDK...
Check:      SOFTWARE\JavaSoft\JDK\9
Check launcher: C:\etc\Java9\jre\bin\javaw.exe (not found)
Ignore:     9

When using a Java 9 JDK there is no "JRE" subfolder anymore.

Launch4J needs to check HOMEDIR\bin\javaw.exe instead of HOMEDIR\jre\bin\javaw.exe if a Java 9 JDK is detected