1 files changed, 27 insertions, 19 deletions
diff --git a/src/java/com/jogamp/common/nio/Buffers.java b/src/java/com/jogamp/common/nio/Buffers.java
index 4a5255e..283cf07 100755
--- a/src/java/com/jogamp/common/nio/Buffers.java
+++ b/src/java/com/jogamp/common/nio/Buffers.java
@@ -41,6 +41,8 @@ package com.jogamp.common.nio;
 
 import java.nio.*;
 
+import jogamp.common.os.PlatformPropsImpl;
+
 import com.jogamp.common.util.ValueConv;
 
 /**
@@ -359,25 +361,31 @@ public class Buffers {
         if (buf == null) {
             return true;
         }
-        if (buf instanceof ByteBuffer) {
-            return ((ByteBuffer) buf).isDirect();
-        } else if (buf instanceof IntBuffer) {
-            return ((IntBuffer) buf).isDirect(); 
-        } else if (buf instanceof ShortBuffer) {
-            return ((ShortBuffer) buf).isDirect(); 
-        } else if (buf instanceof FloatBuffer) {
-            return ((FloatBuffer) buf).isDirect(); 
-        } else if (buf instanceof DoubleBuffer) {
-            return ((DoubleBuffer) buf).isDirect();
-        } else if (buf instanceof LongBuffer) {
-            return ((LongBuffer) buf).isDirect();
-        } else if (buf instanceof CharBuffer) {
-            return ((CharBuffer) buf).isDirect();
-        } else if (buf instanceof PointerBuffer) {
-            return ((PointerBuffer) buf).isDirect();
-        } else if (buf instanceof Buffer) {
-            throw new IllegalArgumentException("Unexpected buffer type Buffer.isDirect() operation is undefined");
-        } 
+        if ( PlatformPropsImpl.JAVA_6 ) {
+            if (buf instanceof Buffer) {
+                return ((Buffer) buf).isDirect();
+            } else if (buf instanceof PointerBuffer) {
+                return ((PointerBuffer) buf).isDirect();
+            }
+        } else {
+            if (buf instanceof ByteBuffer) {
+                return ((ByteBuffer) buf).isDirect();
+            } else if (buf instanceof IntBuffer) {
+                return ((IntBuffer) buf).isDirect(); 
+            } else if (buf instanceof ShortBuffer) {
+                return ((ShortBuffer) buf).isDirect(); 
+            } else if (buf instanceof FloatBuffer) {
+                return ((FloatBuffer) buf).isDirect(); 
+            } else if (buf instanceof DoubleBuffer) {
+                return ((DoubleBuffer) buf).isDirect();
+            } else if (buf instanceof LongBuffer) {
+                return ((LongBuffer) buf).isDirect();
+            } else if (buf instanceof CharBuffer) {
+                return ((CharBuffer) buf).isDirect();
+            } else if (buf instanceof PointerBuffer) {
+                return ((PointerBuffer) buf).isDirect();
+            }
+        }
         throw new IllegalArgumentException("Unexpected buffer type " + buf.getClass().getName());
     }