src/jdk/nashorn/internal/codegen/CodeGenerator.java

rev 747 : 8031983: Error objects should capture stack at the constructor
Reviewed-by: jlaskey, hannesw
rev 758 : 8021350: Share script classes between threads/globals within context
Reviewed-by: lagergren, sundar

@@ -683,11 +683,11 @@
             }
 
             private void scopeCall(final IdentNode node, final int flags) {
                 load(node, Type.OBJECT); // Type.OBJECT as foo() makes no sense if foo == 3
                 // ScriptFunction will see CALLSITE_SCOPE and will bind scope accordingly.
-                method.loadNull(); //the 'this'
+                method.loadUndefined(Type.OBJECT); //the 'this' object
                 method.dynamicCall(callNodeType, 2 + loadArgs(args), flags);
             }
 
             private void evalCall(final IdentNode node, final int flags) {
                 load(node, Type.OBJECT); // Type.OBJECT as foo() makes no sense if foo == 3

@@ -816,11 +816,11 @@
 
             @Override
             protected boolean enterDefault(final Node node) {
                 // Load up function.
                 load(function, Type.OBJECT); //TODO, e.g. booleans can be used as functions
-                method.loadNull(); // ScriptFunction will figure out the correct this when it sees CALLSITE_SCOPE
+                method.loadUndefined(Type.OBJECT); // ScriptFunction will figure out the correct this when it sees CALLSITE_SCOPE
                 method.dynamicCall(callNodeType, 2 + loadArgs(args), getCallSiteFlags() | CALLSITE_SCOPE);
 
                 return false;
             }
         });

@@ -2021,12 +2021,10 @@
             load(throwNode.getExpression());
             method.athrow();
             return false;
         }
 
-        method._new(ECMAException.class).dup();
-
         final Source source     = lc.getCurrentFunction().getSource();
 
         final Expression expression = throwNode.getExpression();
         final int        position   = throwNode.position();
         final int        line       = throwNode.getLineNumber();

@@ -2035,11 +2033,11 @@
         load(expression, Type.OBJECT);
 
         method.load(source.getName());
         method.load(line);
         method.load(column);
-        method.invoke(ECMAException.THROW_INIT);
+        method.invoke(ECMAException.CREATE);
 
         method.athrow();
 
         return false;
     }