launch.bat does not respect whitespaces in JAVA_HOME variable

[philippseith]

When javaw is not in the path, but JAVA_HOME is set to a path with whitespaces (eg. c:\Program Files\OpenJDK\jdk-19.0.2 )
launch.bat and others fail launching winfoom.
This is because neither testing if exist %JAVA_HOME%\bin\javaw.exe nor start /B %%JAVA_EXE% work correctly with whitespaces.
it could be fixed be redefining JAVA_HOME with

for %%I in ("%JAVA_HOME%") do set JAVA_HOME=%%~sI

I will create an PR

[ecovaci]

Isn't something like:

if exist "%JAVA_HOME%\bin\javaw.exe"

a simpler solution?

[philippseith]

for the exist statement this is true, but for the start /b ... I couldn't get quoting working.