java.lang.StackOverflowError in Lowering

[Ali Ebrahimi]

Hi Maurizio,
I'm working on converting statefull lambdas to stateless ones and discovered
following StackOverflowError error.

Test case:
class Test{
   static class D {

        int[] grandTotal = {0};  //******************************
        public void foo() {

            MList<Department> departments = new MList.MListImpl<>();

            MList<Employee> employees = new MList.MListImpl<>();

            departments.forEach( #{Department d ->
                int[] deptTotal = {0};
                employees.filter(#{Employee e -> e.dept == d
                }).forEach(#{Employee e ->
                    deptTotal[0] += e.salary;
                    grandTotal[0] += e.salary;
                });
                System.out.printf("Total for dept %s = %d \n",
                        d.name, deptTotal[0]);
            });
                System.out.printf("Grant total = %d \n", grandTotal[0]);
            }
    }

Error Report:

Information:The system is out of resources.
Information:Consult the following stack trace for details.
Information:java.lang.StackOverflowError
Information:    at
com.sun.tools.javac.code.Symbol$ClassSymbol.isSubClass(Symbol.java:802)
Information:    at
com.sun.tools.javac.code.Symbol.isMemberOf(Symbol.java:322)
Information:    at com.sun.tools.javac.comp.Lower.access(Lower.java:1138)
Information:    at com.sun.tools.javac.comp.Lower.access(Lower.java:1189)
Information:    at
com.sun.tools.javac.comp.Lower.makeOwnerThisN(Lower.java:1720)
Information:    at
com.sun.tools.javac.comp.Lower.makeOwnerThis(Lower.java:1704)
Information:    at
com.sun.tools.javac.comp.Lower.accessBase(Lower.java:1013)
Information:    at com.sun.tools.javac.comp.Lower.access(Lower.java:1175)
Information:Compilation completed with 1 error and 0 warnings
Information:1 error
Information:0 warnings
Error:Compiler internal error. Process terminated with exit code 3

One Note:
if you move "int[] grandTotal = {0};" into foo method, the error goes away.

Best Regards,
Ali Ebrahimi