Releases · google/error-prone

21 Sep 20:05

v2.22.0

7114c31

Error Prone 2.22.0

We are considering raising the minimum supported JDK from JDK 11 to JDK 17 in a future release of Error Prone, see #3803. Note that using a newer JDK version to run javac during the build doesn't prevent building code that is deployed to earlier versions, for example it's supported to use the JDK 17 javac and pass --release 11 to compile Java 11 code that is deployed to a JDK 11 runtime. If you have feedback, please comment on #3803.

New checks:

ClosingStandardOutputStreams: Prevents accidentally closing System.{out,err} with try-with-resources
TruthContainsExactlyElementsInUsage: containsExactly is preferred over containsExactlyElementsIn when creating new iterables
UnnecessaryAsync: detects unnecessary use of async primitives in local (and hence single-threaded) scopes
ReturnAtTheEndOfVoidFunction: detects unnecessary return statements at the end of void functions
MultimapKeys: Suggests using keySet() instead of iterating over Multimap.keys(), which does not collapse duplicates

Bug fixes and improvements:

Don't complain about literal IP addresses in AddressSelection (44b6552)
Prevent SuggestedFixes#renameMethod from modifying return type declaration (#4043)
Fix UnusedVariable false positives for private record parameters (#2713)
When running in conservative mode, no longer assume that implementations of Map.get, etc. return null (#2910)
CanIgnoreReturnValueSuggester: Support additional exempting method annotations (#4009)
UnusedVariable: exclude junit5's @RegisterExtension (#3892)
Support running all available patch checks (#947)
Upgrade java-diff-utils 4.0 -> 4.12 (#4081)
Flag unused Refaster template parameters (#4060)
Support @SuppressWarnings("all") (#4065)
Prevent Refaster UMemberSelect from matching method parameters (#2456)
MissingDefault : Don't require // fall out comments on expression switches (#2709)
Skip UnnecessaryLambda findings for usages in enhanced for loops (#2518)
Fix bug where nested MissingBraces violations' suggested fixes result in broken code (#3797)
Add support for specifying exemptPrefixes/exemptNames for UnusedVariable via flags (#2753)
UnusedMethod: Added exempting variable annotations (#2881)

Full Changelog: v2.21.1...v2.22.0

Assets 2

04 Aug 22:07

github-actions

v2.21.1

c13d44e

Error Prone 2.21.1

Changes:

Handle overlapping ranges in suppressedRegions (fixes #4040)
Add AddressSelection to discourage APIs that convert a hostname to a single address

Full Changelog: v2.21.0...v2.21.1

Assets 2

01 Aug 20:14

github-actions

v2.21.0

152a876

Error Prone 2.21.0

New Checkers:

AttemptedNegativeZero: Prevents accidental use of -0, which is the same as 0. The floating-point negative zero is -0.0.
ICCProfileGetInstance: Warns on uses of ICC_Profile.getInstance(String), due to JDK-8191622.
MutableGuiceModule: Fields in Guice modules should be final.
NullableOptional: Discourages @Nullable-annotated Optionals.
OverridingMethodInconsistentArgumentNamesChecker: Arguments of overriding method are inconsistent with overridden method.