Added Javadocs.

jetty-http2/http2-common/src/main/java/org/eclipse/jetty/http2/ErrorCode.java

@@ -21,21 +21,66 @@ package org.eclipse.jetty.http2;
 import java.util.HashMap;
 import java.util.Map;
 
+/**
+ * Standard HTTP/2 error codes.
+ */
 public enum ErrorCode
 {
+    /**
+     * Indicates no errors.
+     */
     NO_ERROR(0),
+    /**
+     * Indicates a generic HTTP/2 protocol violation.
+     */
     PROTOCOL_ERROR(1),
+    /**
+     * Indicates an internal error.
+     */
     INTERNAL_ERROR(2),
+    /**
+     * Indicates a HTTP/2 flow control violation.
+     */
     FLOW_CONTROL_ERROR(3),
+    /**
+     * Indicates that a SETTINGS frame did not receive a reply in a timely manner.
+     */
     SETTINGS_TIMEOUT_ERROR(4),
+    /**
+     * Indicates that a stream frame has been received after the stream was closed.
+     */
     STREAM_CLOSED_ERROR(5),
+    /**
+     * Indicates that a frame has an invalid length.
+     */
     FRAME_SIZE_ERROR(6),
+    /**
+     * Indicates that a stream was rejected before application processing.
+     */
     REFUSED_STREAM_ERROR(7),
+    /**
+     * Indicates that a stream is no longer needed.
+     */
     CANCEL_STREAM_ERROR(8),
+    /**
+     * Indicates inability to maintain the HPACK compression context.
+     */
     COMPRESSION_ERROR(9),
+    /**
+     * Indicates that the connection established by a HTTP CONNECT was abnormally closed.
+     */
     HTTP_CONNECT_ERROR(10),
+    /**
+     * Indicates that the other peer might be generating excessive load.
+     */
     ENHANCE_YOUR_CALM_ERROR(11),
+    /**
+     * Indicates that the transport properties do not meet minimum security requirements.
+     */
     INADEQUATE_SECURITY_ERROR(12),
+    /**
+     * Indicates that HTTP/1.1 must be used rather than HTTP/2.
+     */
     HTTP_1_1_REQUIRED_ERROR(13);
 
     public final int code;