[COLLECTIONS-414] Collections does not compile with openjdk 1.6.0_24

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Nightly Builds
• Fix Version/s: 4.0-alpha1, 4.0
• Assignee: Unassigned
• Reporter: Thomas Neidhart
• Created: 23/Jun/12 12:31
• Updated: 09/Nov/14 14:31
• Resolved: 15/Jul/12 11:19

Description

There are several classes for which generic type inference does not work when using the openjdk 1.6.0_24 compiler:

[ERROR] /home/tn/workspace/apache/commons-collections/src/main/java/org/apache/commons/collections/functors/OnePredicate.java:[66,38] invalid inferred types for T; actual arguments do not conforms to inferred formal arguments
[ERROR] required: org.apache.commons.collections.Predicate<? super java.lang.Object>[]
[ERROR] found: org.apache.commons.collections.Predicate<? super T>[]

This is mainly due to re-using a method argument that is restricted by Predicate<? super T> to assign methods results of type Predicate<T>.

The eclipse compiler does not report an error in these cases.