[jboss-jira] [JBoss JIRA] Updated: (JASSIST-127) interface proxy creation fails if there are methods with covariant return types
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https://issues.jboss.org/browse/JASSIST-127?page=com.atlassian.jira.plugi...
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Paul Pogonyshev updated JASSIST-127:
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Attachment: jassist-127-fix.diff
I finally got around to writing a proper fix for this. There are comments in the patch to
explain it.
Unfortunately, to test the bug you need Java 1.5, therefore I disabled the added test. If
you want to test it, make sure "1.4" strings are replaced with "1.5"
in 'pom.xml' file. I did this to make sure that the changes in
'ProxyFactory.java' indeed solve the bug.
interface proxy creation fails if there are methods with covariant
return types
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Key: JASSIST-127
URL: https://issues.jboss.org/browse/JASSIST-127
Project: Javassist
Issue Type: Bug
Affects Versions: 3.12.0.GA
Environment: Java 1.6.
Reporter: Paul Pogonyshev
Assignee: Shigeru Chiba
Attachments: jassist-127-fix.diff
Creation of proxy class for interface Bar fails:
public interface Foo
{
Foo getSelf ();
}
public interface Bar extends Foo
{
Bar getSelf ();
}
This is because of covariant return types of method getSelf(). However, as this is
permitted by the language (i.e. subtype can restrict the return type further), I consider
this a bug.
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