Problem with setlocal enabledelayedexpansion

I have this code:

Code:

@echo off

REM Detect either Windows 32 or 64 bit

if /i %PROCESSOR_ARCHITECTURE%==x86 (
   if not defined PROCESSOR_ARCHITEW6432 (set xOS=Win32) else (set xOS=Win64)
) else set xOS=Win64

REM Search for Java installation

setlocal enabledelayedexpansion
if /i %xOS%==win64 (
   if exist "%programfiles(x86)%"\Java\jre1.8* (
      for /f "delims=" %%j in ('dir /b /ad "%programfiles(x86)%"\Java\jre1.8*') do set javapath=%%j
      set javapathsec="%programfiles(x86)%"\Java\!javapath!\lib\security
   ) else (
      echo ERROR: Java 8 ^(x86^) not installed
      echo.
      pause
      goto :eof
   )
) else (
   if exist "%programfiles%"\Java\jre1.8* (
      for /f "delims=" %%j in ('dir /b /ad "%programfiles%"\Java\jre1.8*') do set javapath=%%j
      set javapathsec="%programfiles%"\Java\!javapath!\lib\security
   ) else (
      echo ERROR: Java 8 ^(x86^) not installed
      echo.
      pause
      goto :eof
   )
)
endlocal

echo %javapath%
echo %javapathsec%

pause

But the outcome of this is always "ECHO is off" instead of the actual values of the variables.
The variables javapath and javapathsec are not being set!

Why isn't setlocal/endlocal working?

I want enabledelayedexpansion to be only for this code block

 

Will using disabledelayedexpansion instead of endlocal have the same effect for the code block?
In CMD what's the default behavior? Indeed delayed expansions disabled?