Text added to README

[Andrew Haley]

This is a compatibility warning for Java developers, as suggested by
Sun.

Andrew.


2007-10-12  Andrew Haley  <aph at redhat.com>

        * README (Java compatibility): New section.

diff -r fad17b4fcfc9 README
--- a/README    Thu Oct 11 23:29:52 2007 -0400
+++ b/README    Fri Oct 12 10:27:40 2007 +0100
@@ -42,6 +42,19 @@ Anonymous Mercurial checkout:
 Anonymous Mercurial checkout:
   hg clone http://icedtea.classpath.org/hg/icedtea
 
+Java compatibility
+------------------
+
+IcedTea is derived from OpenJDK, Sun's open-source implementation of
+the Java SE platform.  At this time the build from which IcedTea was
+constructed corresponds to an early build (b21) of JDK 7.  When JDK 7
+is complete it will implement the Java SE 7 Platform Specification.
+Work on that specification is underway, but far from final.  Any APIs
+in the JDK 7 implementation, whether new or old, are therefore subject
+to minor adjustments, major revisions, or even outright removal
+between now and the time that the Java SE 7 Platform Specification is
+finalized.  Please take these facts into account before depending upon
+IcedTea.
 
 How the Stub Replacements were Produced
 ---------------------------------------

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