adding Java 8 note

Author: p hall

SAS_Base_OpenSrcIntegration/README.md

@@ -29,10 +29,6 @@ To accompany "Open Source Integration Using the Base SAS Java Object"
 paper is provided (SAS_Base_OpenSrcIntegraion.pdf).
 
 
-Paper and code is also available at:
-
-https://communities.sas.com/docs/DOC-10746
-
 
 These examples were tested in the following environment:
 
@@ -46,4 +42,12 @@ Anaconda Python 2.7
 
 R 3.1.2
 
-Oracle JDK 1.7.0_25
+Oracle JDK 1.7.0_25
+
+NOTE: This project was compiled with Oracle JDK 1.7.0_25. We highly recommend using Java 7 to compile the java files in this project. 
+When class files generated by some versions of Java 8 are used, the Base SAS Java Object fails with the following error:
+
+ERROR: Could not find class dev.SASJavaExec at line 35 column 20.  Please ensure that the CLASSPATH is correct.
+ERROR: DATA STEP Component Object failure.  Aborted during the EXECUTION phase.
+java.lang.UnsupportedClassVersionError: dev/SASJavaExec : Unsupported major.minor version 52.0
+