find_java.exe: SDK tools require Java 1.6

find_java.exe is used to locate the Path to the JVM on Windows
and it checks the Java version. SDK tools require Java 1.6 now.

Also update the find_java error message to mention the
JAVA_HOME environment variable.

SDK Bug: 39876

Change-Id: I355998b10014471ccbe14ca9e977d07126b072c1
diff --git a/find_java/find_java.bat b/find_java/find_java.bat
index 0ee00e5..6355f23 100755
--- a/find_java/find_java.bat
+++ b/find_java/find_java.bat
@@ -41,6 +41,10 @@
 echo We recommend that you install the JDK version of JavaSE, available here:

 echo   http://www.oracle.com/technetwork/java/javase/downloads

 echo.

+echo If you already have Java installed, you can define the JAVA_HOME environment

+echo variable in Control Panel / System / Avanced System Settings to point to the

+echo JDK folder.

+echo.

 echo You can find the complete Android SDK requirements here:

 echo   http://developer.android.com/sdk/requirements.html

 echo.