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  1. #1
    cele1989 is offline Member
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    Oct 2012
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    Default GSON causing stack overflow error?

    When I execute the code beneath in Netbeans I get perfect result. Getting the 2 lines in comment, out of comment resulting in a Stack overflow error:
    Exception in thread "main" java.lang.StackOverflowError
    at java.util.ArrayList.get(
    at java:354)
    at java:318)

    Why is this happening and how can I fix it?

    import java.util.List;
    import persist.Reeks;

    public class TestHibernate {

    public static void main(String[] args) {
    List<Reeks> reeksen;
    try {
    reeksen = Functionalities.alleReeksenOpvragen();
    for (int i = 0; i < reeksen.size(); i++) {
    System.out.println("reeks: " + reeksen.get(i).getId() + " - " + reeksen.get(i).getNaam() + " - " + reeksen.get(i).getDatumuitgave());
    //String json = new Gson().toJson(reeksen);

    } catch (Exception e) {

  2. #2
    SJF is offline Senior Member
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    Oct 2012
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    Default Re: GSON causing stack overflow error?

    Well, you're out of Stack space. Try running with -Xms256M -Xmx512M flags (or larger if you have to) to the VM. (min-stack 256MB, max-stack 512MB), etc.

    Edit: I don't use netbeans, so can't help as to where the VM flags are set.

  3. #3
    Tolls is offline Moderator
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    Apr 2009
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    Default Re: GSON causing stack overflow error?

    That increases the heap, and has nothing to do with the stack.

    The OP's code is going into a recursive loop.
    Since it's JSON I suspect there are recursive dependencies in the objects they are trying to convert into a JSON string.
    That is class A has an attribute referring to class B, which also has an attribute referring back to class A.
    Please do not ask for code as refusal often offends.

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