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https://issues.apache.org/jira/browse/LANG-606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oliver Sauder updated LANG-606:
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Attachment: EqualsBuilderCyclicalObjectReferences.patch
Attached patch should solve the issue.
I've used the same attempt used in HashCodeBuilder solving the cyclical
reference issue.
Only difference is that a registry with objects pairs is used. When checking if
two objects have already be compared resp. registered those two objects need to
be swapped as the cyclical reference takes place when "the other object" is the
"this object".
> EqualsBuilder causes StackOverflowException
> -------------------------------------------
>
> Key: LANG-606
> URL: https://issues.apache.org/jira/browse/LANG-606
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.builder.*
> Affects Versions: 2.5
> Reporter: Oliver Sauder
> Priority: Minor
> Attachments: EqualsBuilderCyclicalObjectReferences.patch
>
>
> EqualsBuilder causes StackOverflowException when comparing objects with
> cyclical object references.
> e,g.
> static class TestObjectReference {
> @SuppressWarnings("unused")
> private TestObjectReference reference;
> @SuppressWarnings("unused")
> private TestObject one;
>
> public TestObjectReference(int one) {
> this.one = new TestObject(one);
> }
>
> public void setObjectReference(
> TestObjectReference reference) {
> this.reference = reference;
> }
> @Override
> public boolean equals(Object obj) {
> return EqualsBuilder.reflectionEquals(this, obj);
> }
> }
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