Some fixes to the ProGuard files

Author: mikehearn

openjdk.pro

@@ -332,3 +332,19 @@
   <methods>;
 }
 
+# Needed to create temporary file paths, amongst other things.
+-keep class sun.security.provider.NativePRNG
+-keep class sun.security.provider.SHA
+
+# Character set codecs
+-keep class sun.nio.cs.ISO_8859_1
+-keep class sun.nio.cs.UTF_8
+-keep class sun.nio.cs.UTF_16
+-keep class sun.nio.cs.UTF_16BE
+-keep class sun.nio.cs.UTF_16LE
+-keep class sun.nio.cs.US_ASCII
+
+# Accessed from native code
+-keep class java.util.zip.Deflater {
+    <fields>;
+}

vm.pro

@@ -1,10 +1,11 @@
 # proguard include file (http://proguard.sourceforge.net)
 
-# we call the values method reflectively in Enum.valueOf():
-
--keepclassmembers public class * extends java.lang.Enum {
-   public static *** values();
- }
+# Enums have methods and members that are called reflectively in both Avian and OpenJDK.
+-keepclassmembers enum * {
+    **[] $VALUES;
+    public *;
+    public static **[] values();
+}
 
 # the VM depends on the fixed layout of the following classes: