[
https://issues.apache.org/jira/browse/UIMA-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12735944#action_12735944
]
Thilo Goetz commented on UIMA-1257:
-----------------------------------
+1, sounds good.
If I remember right, the changing type priorities are due to the fact that part
of the order is determined by iterating over the keys of a HashMap. Since the
HashMap implementation changes now and then, this iterations sequence may
depend on the JVM.
> Type System Merging Should Produce Consistent Ordering of Types
> ---------------------------------------------------------------
>
> Key: UIMA-1257
> URL: https://issues.apache.org/jira/browse/UIMA-1257
> Project: UIMA
> Issue Type: Improvement
> Components: Core Java Framework
> Affects Versions: 2.2.2
> Reporter: Adam Lally
> Assignee: Adam Lally
> Priority: Minor
> Fix For: 2.3
>
>
> Currently when type systems are merged across annotators, the ordering of the
> types produced by the merge method is not defined, and varies according to
> the ordering in which the individual type system descriptors are passed to
> the merge method. The ordering depends on the order in which individual AEs
> are initialized, which is also not defined, and may even vary according to
> JVM version.
> One reason to improve this is that UIMA-AS has a feature to allow binary
> serialization, but it requires that type systems be identical on both sides
> of the connection, and it is difficult to ensure this if ordering cannot be
> relied on.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
