java.lang.StackOverflowError in Lowering

[Rémi Forax]

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
>>