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GuardedByUtils: return empty set instead of null #1110

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GuardedByUtils: return empty set instead of null #1110

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don-vip
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@don-vip don-vip commented Sep 5, 2018

See #1106 (comment)

This fixes an NPE seen with JDK12 (when #1107 is merged):

[javac]     public final WaySegment getNearestWaySegment(Point p, Predicate<OsmPrimitive> predicate,
    [javac]                             ^
    [javac]      Please report this at https://github.com/google/error-prone/issues/new and include the following:
    [javac]   
    [javac]      error-prone version: 2.3.2-SNAPSHOT
    [javac]      BugPattern: GuardedBy
    [javac]      Stack Trace:
    [javac]      java.lang.NullPointerException
    [javac]   	at com.google.errorprone.bugpatterns.threadsafety.HeldLockAnalyzer$LockScanner.checkMatch(HeldLockAnalyzer.java:227)
    [javac]   	at com.google.errorprone.bugpatterns.threadsafety.HeldLockAnalyzer$LockScanner.visitIdentifier(HeldLockAnalyzer.java:196)
    [javac]   	at com.google.errorprone.bugpatterns.threadsafety.HeldLockAnalyzer$LockScanner.visitIdentifier(HeldLockAnalyzer.java:116)
    [javac]   	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2324)

simon04 pushed a commit to JOSM/josm that referenced this pull request Sep 5, 2018
@don-vip
see #16498 - fix NPE in error_prone
78ca690 
See google/error-prone#1110
See google/error-prone#1106 (comment)

git-svn-id: https://josm.openstreetmap.de/svn/trunk@14225 0c6e7542-c601-0410-84e7-c038aed88b3b
floscher pushed a commit to floscher/josm that referenced this pull request Sep 5, 2018
@don-vip
see #16498 - fix NPE in error_prone
7abb643 
See google/error-prone#1110
See google/error-prone#1106 (comment)

git-svn-id: https://josm.openstreetmap.de/svn/trunk@14225 0c6e7542-c601-0410-84e7-c038aed88b3b
This was referenced Sep 5, 2018
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@cushon
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cushon commented Sep 6, 2018

Can you add a unit test? It is it covered by existing tests when running in JDK 12?

johsin18 pushed a commit to johsin18/josm that referenced this pull request Mar 1, 2020
@don-vip
see #17516 - update to error-prone 2.3.5-SNAPSHOT plus following patc…
bf3a6f0 
…hes for Java 13 compatibility (https://github.com/don-vip/error-prone/commits/jdk13):

- google/error-prone#1107
- google/error-prone#1110
- google/error-prone#1111
- google/error-prone#1398
- google/error-prone#1439

git-svn-id: https://josm.openstreetmap.de/svn/trunk@15963 0c6e7542-c601-0410-84e7-c038aed88b3b
simon04 pushed a commit to JOSM/josm that referenced this pull request Mar 25, 2020
@don-vip
see #17516 - update to error-prone 2.3.5-SNAPSHOT plus following patc…
6ef5433 
…hes for Java 13 compatibility (https://github.com/don-vip/error-prone/commits/jdk13):

- google/error-prone#1107
- google/error-prone#1110
- google/error-prone#1111
- google/error-prone#1398
- google/error-prone#1439

git-svn-id: https://josm.openstreetmap.de/svn/trunk@15963 0c6e7542-c601-0410-84e7-c038aed88b3b
TimvdLippe added a commit to TimvdLippe/error-prone that referenced this pull request Apr 15, 2020
@TimvdLippe
Update build matrix for Java 12
47ae679 
This allows us to check that ErrorProne works on Java 12. It is part of
issue google#1106 to make ErrorProne work on newer versions of Java.

It will allow us to verify that google#1110 indeed fixes the problem with Java
12.
@TimvdLippe TimvdLippe mentioned this pull request Apr 15, 2020
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@cushon
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cushon commented May 14, 2020

I have tests passing on JDK 12 and am still not observing the problem this solves, do you have a repro?

kluever pushed a commit that referenced this pull request May 17, 2020
@don-vip @kluever
GuardedByUtils: return empty set instead of null
8f05406 
Fixes #1110

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=311825676
@kluever kluever mentioned this pull request May 17, 2020
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kluever pushed a commit that referenced this pull request May 17, 2020
@don-vip @kluever
GuardedByUtils: return empty set instead of null
1341c4e 
Fixes #1110

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=311825676
@don-vip don-vip deleted the jdk12_pr2 branch June 1, 2020 16:58
floscher pushed a commit to floscher/josm that referenced this pull request Oct 28, 2020
@don-vip
see #17516 - update to error-prone 2.3.5-SNAPSHOT plus following patc…
f8fc0c8 
…hes for Java 13 compatibility (https://github.com/don-vip/error-prone/commits/jdk13):

- google/error-prone#1107
- google/error-prone#1110
- google/error-prone#1111
- google/error-prone#1398
- google/error-prone#1439

git-svn-id: https://josm.openstreetmap.de/svn/trunk@15963 0c6e7542-c601-0410-84e7-c038aed88b3b
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