ejb3/src/main/java/org/jboss/as/ejb3/iiop/stub/IIOPStubCompiler.java
private static void generateMethodCode(ClassFile asm,
                                           Class<?> superclass,
                                           Method m,
                                           String idlName,
                                           String strategyField,
                                           String initMethod) {
        Class<?> returnType = m.getReturnType();
        Class<?>[] paramTypes = m.getParameterTypes();
        Class<?>[] exceptions = m.getExceptionTypes();

        // Generate a static field with the StubStrategy for the method
        asm.addField(Modifier.PRIVATE + Modifier.STATIC, strategyField, StubStrategy.class);

        // Generate the method code
        final CodeAttribute ca = asm.addMethod(m).getCodeAttribute();

        // The method code issues a call
        // super.invoke*(idlName, strategyField, args)
        ca.aload(0);
        ca.ldc(idlName);
        ca.getstatic(asm.getName(), strategyField, StubStrategy.class);

        // Push args
        if (paramTypes.length == 0) {
            ca.iconst(0);
            ca.anewarray(Object.class.getName());
            //asm.pushField(Util.class, "NOARGS");
        } else {
            ca.iconst(paramTypes.length);
            ca.anewarray(Object.class.getName());
            int index = 1;
            for (int j = 0; j < paramTypes.length; j++) {

                Class<?> type = paramTypes[j];

                ca.dup();
                ca.iconst(j);
                if (!type.isPrimitive()) {
                    // object or array
                    ca.aload(index);
                } else if (type.equals(double.class)) {
                    ca.dload(index);
                    Boxing.boxDouble(ca);
                    index++;
                } else if (type.equals(long.class)) {
                    ca.lload(index);
                    Boxing.boxLong(ca);
                    index++;
                } else if (type.equals(float.class)) {
                    ca.fload(index);
                    Boxing.boxFloat(ca);
                } else {
                    ca.iload(index);
                    Boxing.boxIfNessesary(ca, DescriptorUtils.makeDescriptor(type));
                }
                index++;
                ca.aastore();
            }
        }
        // Generate the call to an invoke* method ot the superclass
        String invoke = "invoke";
        String ret = "Ljava/lang/Object;";
        if (returnType.isPrimitive() && returnType != Void.TYPE) {
            String typeName = returnType.getName();
            invoke += (Character.toUpperCase(typeName.charAt(0))
                    + typeName.substring(1));
            ret = DescriptorUtils.makeDescriptor(returnType);
        }
        ca.invokevirtual(superclass.getName(), invoke, "(Ljava/lang/String;Lorg/wildfly/iiop/openjdk/rmi/marshal/strategy/StubStrategy;[Ljava/lang/Object;)" + ret);
        if (!returnType.isPrimitive() && returnType != Object.class) {
            ca.checkcast(returnType);
        }
        ca.returnInstruction();

        // Generate a static method that initializes the method's strategy field
        final CodeAttribute init = asm.addMethod(Modifier.PRIVATE + Modifier.STATIC,initMethod, "V").getCodeAttribute();
            int i;
            int len;

            // Push first argument for StubStrategy constructor:
            // array with abbreviated names of the param marshallers
            len = paramTypes.length;
            init.iconst(len);
            init.anewarray(String.class.getName());
            for (i = 0; i < len; i++) {
                init.dup();
                init.iconst(i);
                init.ldc(CDRStream.abbrevFor(paramTypes[i]));
                init.aastore();
            }

            // Push second argument for StubStrategy constructor:
            // array with exception repository ids
            len = exceptions.length;
            int n = 0;
            for (i = 0; i < len; i++) {
                if (!RemoteException.class.isAssignableFrom(exceptions[i])) {
                    n++;
                }
            }
            init.iconst(n);
            init.anewarray(String.class.getName());
            try {
                int j = 0;
                for (i = 0; i < len; i++) {
                    if (!RemoteException.class.isAssignableFrom(exceptions[i])) {
                        init.dup();
                        init.iconst(j);
                        init.ldc(
                                ExceptionAnalysis.getExceptionAnalysis(exceptions[i])
                                        .getExceptionRepositoryId());
                        init.aastore();
                        j++;
                    }
                }
            } catch (RMIIIOPViolationException e) {
                throw EjbLogger.ROOT_LOGGER.exceptionRepositoryNotFound(exceptions[i].getName(), e.getLocalizedMessage());
            }

            // Push third argument for StubStrategy constructor:
            // array with exception class names
            init.iconst(n);
            init.anewarray(String.class.getName());
            int j = 0;
            for (i = 0; i < len; i++) {
                if (!RemoteException.class.isAssignableFrom(exceptions[i])) {
                    init.dup();
                    init.iconst(j);
                    init.ldc(exceptions[i].getName());
                    init.aastore();
                    j++;
                }
            }

            // Push fourth argument for StubStrategy constructor:
            // abbreviated name of the return value marshaller
            init.ldc(CDRStream.abbrevFor(returnType));

            // Push fifth argument for StubStrategy constructor:
            // null (no ClassLoader specified)
            init.aconstNull();

            // Constructs the StubStrategy
            init.invokestatic(StubStrategy.class.getName(), "forMethod", "([Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/ClassLoader;)Lorg/wildfly/iiop/openjdk/rmi/marshal/strategy/StubStrategy;");

            // Set the strategy field of this stub class
            init.putstatic(asm.getName(), strategyField, StubStrategy.class);

            init.returnInstruction();
    }
private static void generateMethodCode(ClassFile asm,
                                           Class<?> superclass,
                                           Method m,
                                           String idlName,
                                           String strategyField,
                                           String initMethod) {
        Class<?> returnType = m.getReturnType();
        Class<?>[] paramTypes = m.getParameterTypes();
        Class<?>[] exceptions = m.getExceptionTypes();

        // Generate a static field with the StubStrategy for the method
        asm.addField(Modifier.PRIVATE + Modifier.STATIC, strategyField, StubStrategy.class);

        // Generate the method code
        final CodeAttribute ca = asm.addMethod(m).getCodeAttribute();

        // The method code issues a call
        // super.invoke*(idlName, strategyField, args)
        ca.aload(0);
        ca.ldc(idlName);
        ca.getstatic(asm.getName(), strategyField, StubStrategy.class);

        // Push args
        if (paramTypes.length == 0) {
            ca.iconst(0);
            ca.anewarray(Object.class.getName());
            //asm.pushField(Util.class, "NOARGS");
        } else {
            ca.iconst(paramTypes.length);
            ca.anewarray(Object.class.getName());
            int index = 1;
            for (int j = 0; j < paramTypes.length; j++) {

                Class<?> type = paramTypes[j];

                ca.dup();
                ca.iconst(j);
                if (!type.isPrimitive()) {
                    // object or array
                    ca.aload(index);
                } else if (type.equals(double.class)) {
                    ca.dload(index);
                    Boxing.boxDouble(ca);
                    index++;
                } else if (type.equals(long.class)) {
                    ca.lload(index);
                    Boxing.boxLong(ca);
                    index++;
                } else if (type.equals(float.class)) {
                    ca.fload(index);
                    Boxing.boxFloat(ca);
                } else {
                    ca.iload(index);
                    Boxing.boxIfNessesary(ca, DescriptorUtils.makeDescriptor(type));
                }
                index++;
                ca.aastore();
            }
        }
        // Generate the call to an invoke* method ot the superclass
        String invoke = "invoke";
        String ret = "Ljava/lang/Object;";
        if (returnType.isPrimitive() && returnType != Void.TYPE) {
            String typeName = returnType.getName();
            invoke += (Character.toUpperCase(typeName.charAt(0))
                    + typeName.substring(1));
            ret = DescriptorUtils.makeDescriptor(returnType);
        }
        ca.invokevirtual(superclass.getName(), invoke, "(Ljava/lang/String;Lorg/wildfly/iiop/openjdk/rmi/marshal/strategy/StubStrategy;[Ljava/lang/Object;)" + ret);
        if (!returnType.isPrimitive() && returnType != Object.class) {
            ca.checkcast(returnType);
        }
        ca.returnInstruction();

        // Generate a static method that initializes the method's strategy field
        final CodeAttribute init = asm.addMethod(Modifier.PRIVATE + Modifier.STATIC,initMethod, "V").getCodeAttribute();
            int i;
            int len;

            // Push first argument for StubStrategy constructor:
            // array with abbreviated names of the param marshallers
            len = paramTypes.length;
            init.iconst(len);
            init.anewarray(String.class.getName());
            for (i = 0; i < len; i++) {
                init.dup();
                init.iconst(i);
                init.ldc(CDRStream.abbrevFor(paramTypes[i]));
                init.aastore();
            }

            // Push second argument for StubStrategy constructor:
            // array with exception repository ids
            len = exceptions.length;
            int n = 0;
            for (i = 0; i < len; i++) {
                if (!RemoteException.class.isAssignableFrom(exceptions[i])) {
                    n++;
                }
            }
            init.iconst(n);
            init.anewarray(String.class.getName());
            try {
                int j = 0;
                for (i = 0; i < len; i++) {
                    if (!RemoteException.class.isAssignableFrom(exceptions[i])) {
                        init.dup();
                        init.iconst(j);
                        init.ldc(
                                ExceptionAnalysis.getExceptionAnalysis(exceptions[i])
                                        .getExceptionRepositoryId());
                        init.aastore();
                        j++;
                    }
                }
            } catch (RMIIIOPViolationException e) {
                throw EjbLogger.ROOT_LOGGER.exceptionRepositoryNotFound(exceptions[i].getName(), e.getLocalizedMessage());
            }

            // Push third argument for StubStrategy constructor:
            // array with exception class names
            init.iconst(n);
            init.anewarray(String.class.getName());
            int j = 0;
            for (i = 0; i < len; i++) {
                if (!RemoteException.class.isAssignableFrom(exceptions[i])) {
                    init.dup();
                    init.iconst(j);
                    init.ldc(exceptions[i].getName());
                    init.aastore();
                    j++;
                }
            }

            // Push fourth argument for StubStrategy constructor:
            // abbreviated name of the return value marshaller
            init.ldc(CDRStream.abbrevFor(returnType));

            // Push fifth argument for StubStrategy constructor:
            // null (no ClassLoader specified)
            init.aconstNull();

            // Constructs the StubStrategy
            init.invokestatic(StubStrategy.class.getName(), "forMethod", "([Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/ClassLoader;)Lorg/wildfly/iiop/openjdk/rmi/marshal/strategy/StubStrategy;");

            // Set the strategy field of this stub class
            init.putstatic(asm.getName(), strategyField, StubStrategy.class);

            init.returnInstruction();
    }
Generates the code of a given method within a stub class.

@param asm           the <code>ProxyAssembler</code> used to assemble
the method code
@param superclass    the superclass of the stub class within which the
method will be generated
@param m             a <code>Method</code> instance describing the
method declaration by an RMI/IDL interface
@param idlName       a string with the method name mapped to IDL
@param strategyField a string with the name of the strategy field that
will be associated with the generated method
@param initMethod    a string with the name of the static initialization
method that will be associated with the generated
method.