handle buffer overflow and prevent java.nio.BufferOverflowException when message is too big

Author: wsalembi

src/main/java/org/fluentd/logger/sender/RawSocketSender.java

@@ -165,8 +165,8 @@ private synchronized boolean send(byte[] bytes) {
                 LOG.error("Cannot send logs to " + server.toString());
                 return false;
             }
-            if (bytes.length > pendings.capacity()) {
-                LOG.error("Log data larger {} than buffer size {}", bytes.length, pendings.capacity());
+            if (bytes.length > pendings.remaining()) {
+                LOG.error("Log data {} larger than remaining buffer size {}", bytes.length, pendings.remaining());
                 return false;
             }
         }