Fixed: If receiver in the function objj_msgSend is a class we don't need to check if it is nil as a class can never be nil without the load has already failed.

Objective-J/ObjJAcornCompiler.js

@@ -2170,9 +2170,18 @@ MessageSendExpression: function(node, st, c) {
             // If it is 'self' we assume it will never be nil and remove that test
             var receiverIsIdentifier = nodeObject.type === "Identifier" && !(st.currentMethodType() === "-" && compiler.getIvarForClass(nodeObject.name, st) && !st.getLvar(nodeObject.name, true)),
                 selfLvar,
-                receiverIsNotSelf = !receiverIsIdentifier || nodeObject.name !== "self" || !(selfLvar = st.getLvar("self", true)) || !selfLvar.scope || selfLvar.scope.assignmentToSelf;
+                receiverIsNotSelf;
 
             if (receiverIsIdentifier) {
+                var name = nodeObject.name,
+                    selfLvar = st.getLvar(name);
+
+                if (name === "self") {
+                    receiverIsNotSelf = !selfLvar || !selfLvar.scope || selfLvar.scope.assignmentToSelf;
+                } else {
+                    receiverIsNotSelf = !!selfLvar || !compiler.getClassDef(name);
+                }
+
                 if (receiverIsNotSelf) {
                     buffer.concat("(");
                     c(nodeObject, st, "Expression");
@@ -2180,6 +2189,7 @@ MessageSendExpression: function(node, st, c) {
                 }
                 c(nodeObject, st, "Expression");
             } else {
+                receiverIsNotSelf = true;
                 if (!st.receiverLevel) st.receiverLevel = 0;
                 buffer.concat("((___r");
                 buffer.concat(++st.receiverLevel + "");

Tests/Objective-J/Preprocessor/OutputTests/Messages/no-parameters.j

@@ -1,2 +1,2 @@
-
+[CPArray new];
 [object message];

Tests/Objective-J/Preprocessor/OutputTests/Messages/no-parameters.js

@@ -1,2 +1,2 @@
-
-(object==null?null:object.isa.objj_msgSend0(object,"message"));
+CPArray.isa.objj_msgSend0(CPArray,"new");
+(object==null?null:object.isa.objj_msgSend0(object,"message"));

Tests/Objective-J/Preprocessor/OutputTests/Messages/one-parameter.j

@@ -1,2 +1,2 @@
-
+[CPArray arrayWithArray:[]];
 [object label:argument];

Tests/Objective-J/Preprocessor/OutputTests/Messages/one-parameter.js

@@ -1,2 +1,2 @@
-
-(object==null?null:object.isa.objj_msgSend1(object,"label:",argument));
+CPArray.isa.objj_msgSend1(CPArray,"arrayWithArray:",[]);
+(object==null?null:object.isa.objj_msgSend1(object,"label:",argument));