update JavaDoc

bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java

diff --git a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java b/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java
index 16ed649..975100a 100644
--- a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java
+++ b/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java
@@ -96,7 +96,17 @@
 	}
 
 	/**
+	 * <p>
 	 * Ensures that an InputStream has mark/reset support.
+	 * </p>
+	 * <p>
+	 * It's vital that a BufferedInputStream <b>not</b> be wrapped in another
+	 * BufferedInputStream as each can preemptively consume <i>n</i> bytes
+	 * (e.g. 2048) from the parent stream before any requests are made. The
+	 * cascading effect is that the second/inner BufferedInputStream can never
+	 * rewind itself to the first <i>n</i> bytes since they were already
+	 * consumed by its parent.
+	 * </p>
 	 */
 	public static InputStream getMarkSupportedStream(InputStream original) {
 		if (original == null)