Extract an Oracle JDK for Windows (up to Java 8) from the EXE file

extractjdk.bat

@echo off
rem
rem Extract an Oracle JDK for Windows (up to Java 8) from the EXE file
rem (c) Olivier Gérardin 2018 ogerardin@yahoo.com
rem Adapted from https://stackoverflow.com/questions/1619662/how-can-i-get-the-latest-jre-jdk-as-a-zip-file-rather-than-exe-or-msi-installe
rem

setlocal EnableDelayedExpansion

set INTERACTIVE=1
echo %CMDCMDLINE% | find /i "%~0" >NUL
if not errorlevel 1 set INTERACTIVE=0

set PATH=%~dp0\bin;%PATH%

if "%~1" == "" (
  echo Usage: %~nx0 jdk-*-windows-x64.exe
  echo From the Windows Explorer just drop the jdk-*-windows-x64.exe file 
  echo on the %~nx0 icon.
  if "%INTERACTIVE%" == "0" pause
  exit /b -1
)

7z >NUL
IF %ERRORLEVEL% neq 0 (
  if "%INTERACTIVE%" == "0" pause
  exit /b -2
) 

set JDK_EXE=%~1
set TARGET=%~dpn1

if exist %TARGET% rmdir /s /q %TARGET%      

rem Get tools.zip
7z e %JDK_EXE% .rsrc/1033/JAVA_CAB10/111
7z e 111
del 111
rem Uncompress tools.zip 
7z x tools.zip -o%TARGET%
del tools.zip
rem unpack .pack files
for /r jdk %%P in (*.pack) do (
  echo %%~nxP
  %TARGET%\bin\unpack200 -r "%%P" "%%~dpnP.jar"
)

rem Get src.zip
7z e %JDK_EXE% .rsrc/1033/JAVA_CAB9/110
7z e 110 -o%TARGET%
del 110

endlocal

if "%INTERACTIVE%" == "0" pause
exit /b 0