GH-3598: schemagen adding literals true false null to java keywords
diff --git a/jena-cmds/src/main/java/jena/schemagen.java b/jena-cmds/src/main/java/jena/schemagen.java
index b88680e..29b639d 100644
--- a/jena-cmds/src/main/java/jena/schemagen.java
+++ b/jena-cmds/src/main/java/jena/schemagen.java
@@ -104,7 +104,9 @@
         "const",       "float",       "native",      "super",       "while",
 
         // And distinguished names.
-        "var", "record"
+        "var", "record",
+        // And literals
+        "true", "false", "null"
     };