Fix for possible NPE in generated code.
diff --git a/src/main/java/org/apache/activemq/nms/openwire/tool/commands/CommandClassGenerator.java b/src/main/java/org/apache/activemq/nms/openwire/tool/commands/CommandClassGenerator.java
index ac04e97..bad5901 100644
--- a/src/main/java/org/apache/activemq/nms/openwire/tool/commands/CommandClassGenerator.java
+++ b/src/main/java/org/apache/activemq/nms/openwire/tool/commands/CommandClassGenerator.java
@@ -222,7 +222,7 @@
             String name = property.getSimpleName();
 
             if( property.getType().isArrayType() && toCSharpType(property.getType()).startsWith("byte")) {
-                out.print("                \"" + name + " = \" + System.Text.ASCIIEncoding.ASCII.GetString(" + name + ") + ");
+                out.print("                \"" + name + " = \" + " + name + " ?? System.Text.ASCIIEncoding.ASCII.GetString(" + name + ") + ");
             } else {
                 out.print("                \"" + name + " = \" + " + name + " + ");
             }