)
if not exist "%FILE_ARG%" (
  echo POM file "%FILE_ARG%" specified the -f/--file command-line argument does not exist >&2
  goto error
)
if exist "%FILE_ARG%\*" (
  set "POM_DIR=%FILE_ARG%"
) else (
  call :get_directory_from_file "%FILE_ARG%"
)
if not exist "%POM_DIR%" (
  echo Directory "%POM_DIR%" extracted from the -f/--file command-line argument "%FILE_ARG%" does not exist >&2
  goto error
)
set "WDIR=%POM_DIR%"

if...

@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome

set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if %ERRORLEVEL% equ 0 goto execute

echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.

goto fail

:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%