google/error-prone

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Catch common Java mistakes as compile-time errors

Stars: 7.2k
Forks: 820
Open beginner issues: 2
Indexed issues: 433
Avg merge: 5h 9m
Merged PRs (30d): 50

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 16, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

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433 open issues indexed

Add built in support for using GuardedBy annotation with a StampedLock Open

google/error-prone#1495 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Possibility for concatenation of string literals in Refaster rules Open

google/error-prone#1496 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Refaster matcher for expressions guaranteed to be free of side effects Open

google/error-prone#1497 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
New rule: Buggy ThreadPoolExecutor initializations Open

Type-NewCheck

google/error-prone#1510 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Allow specifying URL to compiled Refaster templates Open

google/error-prone#1513 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
ImmutableEnumChecker on a list coming from List.of(...) which is immutable Open

google/error-prone#1542 · 12 comments · 7 reactions · 0 assignees · Indexed Sep 16, 2026
Suggested Error Prone pattern: NumberFormatContstant (like existing DateFormatConstant) Open

google/error-prone#1568 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
add to ignored mockito methods in `AbstractReturnValueIgnored`: `org.mockito.BDDMockito#then` Open

google/error-prone#1598 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
[2.4.0] Consider splitting JdkObsolete into individual checks Open

google/error-prone#1646 · 19 comments · 6 reactions · 0 assignees · Indexed Sep 16, 2026
Suggestion: `BadImport` should ignore annotation parameters Open

google/error-prone#1651 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
[Suggestion]ArrayEquals supports detection assertEquals(array1, array2) is recommended Open

google/error-prone#1658 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
[Suggestion] add IntelliJ's SuspiciousCollectionsMethodCallsInspection Open

google/error-prone#1667 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Severity level error is still listed in the documentation for the checks that were recently demoted to warnings Open

google/error-prone#1704 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Could you make `@MustBeClosed` to have `ElementType.TYPE` in its `@Target`? Open

google/error-prone#1708 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 16, 2026
Request for BugChecker.checkSuppression to be initialized _after_ construction Open

google/error-prone#1743 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
@DoNotMock should support warningOnlyForRefactoring() similar to @RestrictedApi to ease migrations Open

google/error-prone#1748 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Allow "found raw type" to upgrade to an error - Do not allow raw types Open

google/error-prone#1799 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
false FormatStringAnnotation errors after one unrelated legit error Open

not-reproducible

google/error-prone#1841 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
[Feature] Allow *Inject* Patterns to take full path alternative annotations Open

google/error-prone#1941 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
[Feature] namespace BugPatterns and allow wildcard/patterns Open

google/error-prone#1942 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
False positive: UnusedVariable for methods that unconditionally throw Open

google/error-prone#1948 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
CompileTimeConstant checks are bypassed depending on the reference type Open

google/error-prone#1965 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Release versioned documentation Open

google/error-prone#2068 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Allow restricting entire classes with @RestrictedApi Open

google/error-prone#2087 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
2.5.1 - RestrictedApiChecker - NoSuchElementException (superclassConstructorSymbol) Open

google/error-prone#2152 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
only expecting one cleanup method per class Open

google/error-prone#2222 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Feature request: detect misuse (storing) of "short living" values Open

google/error-prone#2253 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Configuring ErrorProne with Java 16 Open

google/error-prone#2284 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Feature Request - Check-Then-Act misusage on Java concurrent collections Open

Type-NewCheck

google/error-prone#2302 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Limitation of InlineMeInliner with lambda expressions Open

bug

google/error-prone#2347 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Invalid file path pattern on Windows Open

google/error-prone#2394 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Feature Request - detect key of wrong type passed to Map.get() or Map.remove() Open

google/error-prone#2482 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Feature - Option to remove associated whitespace for SuggestedFix.Builder `replace` and `delete` Open

google/error-prone#2500 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
UseEnumSwitch - detection edge case (false positive) Open

google/error-prone#2521 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Please add support for TestNG in TestExceptionChecker Open

google/error-prone#2610 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Invalid `CheckReturnValue` suggested fix when a variable must be final or effectively final Open

google/error-prone#2624 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
GuardedBy and volatile Open

google/error-prone#2627 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JDK (java/util/Formatter.java) causes NPE in ReferenceEquality Open

google/error-prone#2639 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JDK (java/time/chrono/HijrahChronology.java) causes assertion in BadInstanceof Open

google/error-prone#2640 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Errorprone 2.9.0 failing to process file consistently Open

google/error-prone#2643 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Active refactorings Open

google/error-prone#2645 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
ErrorProne 2.9.0 with Java 8: "cannot access Response". Possible regression. Open

google/error-prone#2654 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Feature Request: fail when a rule at level "warn" doesn't trigger. Open

google/error-prone#2664 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
@DoNotCall triggers a warning on default interface methods Open

google/error-prone#2666 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Suggest update Maven installation to use profiles Open

google/error-prone#2775 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Maven jvm.config instead of fork/compilerArgs Open

google/error-prone#2786 · 9 comments · 4 reactions · 0 assignees · Indexed Sep 16, 2026
Excessive Metaspace usage when Error Prone enabled Open

google/error-prone#2793 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Exception during static analysis with errorprone Open

google/error-prone#2808 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Use of `javax.lang.model.SourceVersion` not flagged by AndroidJdkLibsChecker Open

google/error-prone#2817 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Confusing message from AlreadyChecked Open

google/error-prone#2911 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026

google/error-prone

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