java.lang.StackOverflowError in Lowering

[Brian Goetz]

One can only dream!

On 6/22/2011 10:55 AM, Rémi Forax wrote:
> Yes, better to use reduce instead of forEach.
>
> Brian, do you think that the lightning redirector will be included
> in the JDK8 VM ? It will help to "educate" users.
>
> Rémi
>
> On 06/22/2011 04:31 PM, Brian Goetz wrote:
>> And for using the one-element-array trick to work around the mutable
>> capture restriction, your license to code in Java has been permanently
>> revoked.  Please turn in your keyboard, and security will escort you out
>> of the building.
>>
>> On 6/22/2011 10:26 AM, Ali Ebrahimi wrote:
>>> 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
>>>
>
>