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Bug 104194 - not possible to get FQN of TypeMirror
Summary: not possible to get FQN of TypeMirror
Alias: None
Product: java
Classification: Unclassified
Component: Source (show other bugs)
Version: 6.x
Hardware: All All
: P3 blocker (vote)
Assignee: apireviews
Depends on:
Reported: 2007-05-17 16:26 UTC by Tomas Mysik
Modified: 2010-07-14 02:44 UTC (History)
3 users (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

Proposed API change. (12.21 KB, patch)
2010-06-29 09:40 UTC, Jan Lahoda
Details | Diff

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Description Tomas Mysik 2007-05-17 16:26:04 UTC
See JavaDoc of toString() method of javax.lang.model.type.TypeMirror
Comment 1 Jan Lahoda 2007-06-18 15:40:06 UTC
I would not say it is not possible - check for kind (TypeMirror.getKind()). If kind is DECLARED, do:
((TypeElement) ((DeclaredType) tm).asElement()).getQualifiedName().toString()

I agree that this could be simpler - and leaving open as an enhancement to cover this - but it is possible to get the
FQN (whatever definition of FQN is appropriate in a given context). Actually, reasonable definition of FQN is probably
hardest part of creating utility to get FQN from a TypeMirror.
Comment 2 Andrei Badea 2007-06-18 16:42:32 UTC
It's not that simple, take for example

java.util.Map<String, java.util.List<String>>

Admittedly the method has a bit unclear semantics, one might want imports to be taken into account (to generate simple
names when possible). But still: the API is incomplete, thus I consider this a defect.
Comment 3 Jan Becicka 2008-11-13 14:35:59 UTC
Will resolve later
Comment 4 Quality Engineering 2009-11-02 11:04:32 UTC Migration: changing resolution from LATER to WONTFIX
Comment 5 Jan Lahoda 2010-06-29 09:40:30 UTC
Created attachment 100482 [details]
Proposed API change.
Comment 6 Jan Lahoda 2010-06-29 09:41:30 UTC
I would like to add method, TypeNameOptions...), please review the change. Thanks.
Comment 7 Jan Lahoda 2010-07-13 08:50:11 UTC
Thanks for the review.
Comment 8 Quality Engineering 2010-07-14 02:44:34 UTC
Integrated into 'main-golden', will be available in build *201007140001* on (upload may still be in progress)
User: Jan Lahoda <>
Log: #104194: introducing TypeUtilities.getTypeName.