google/error-prone

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

StatementSwitchToExpressionSwitch shows misleading message Open

google/error-prone#5066 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Open source GoodTime checks Open

google/error-prone#5088 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
Error prone throwing exception on classes extending Exception whilst also using lombok annotations Open

google/error-prone#5089 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Transitive dependency on new, problematic Guava version Open

google/error-prone#5108 · 9 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
`UnusedMethod` marks CDI observer methods as unused Open

google/error-prone#5123 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessaryQualifier` outputs warnings for JUnit 5 injection sites Open

google/error-prone#5126 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessaryQualifier` outputs warnings for qualifier annotations copied by lombok Open

google/error-prone#5128 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Link to ErrorProne has trailing parenthesis Open

google/error-prone#5132 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
`MisleadingEscapedSpace` false positive with `CRLF` line separator in sources Open

google/error-prone#5142 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 16, 2026
FormatString not raised for non final variable? Open

google/error-prone#5151 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
New check request: Unreachable methods in anonymous classes Open

google/error-prone#5156 · 6 comments · 4 reactions · 0 assignees · Indexed Sep 16, 2026
2.40.0: Exception thrown when a check is disabled through an alternate name and `-XepPatchCheck:` is set Open

google/error-prone#5170 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessaryQualifier` outputs warnings for CDI observers Open

google/error-prone#5173 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
New check request: Annotation conflicts between record component and explicit accessor method Open

google/error-prone#5177 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
`EffectivelyPrivate` false positives? Open

google/error-prone#5182 · 14 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
Add `rewrite` support for `errorprone.refasterrules` Open

google/error-prone#5195 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
FieldMissingNullable doesn't complain when variable is not initialized Open

google/error-prone#5208 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
New check request: autoboxing on ternary operator Open

google/error-prone#5214 · 2 comments · 3 reactions · 0 assignees · Indexed Sep 16, 2026
`SuppressWarningsWithoutExplanation` Inconsistency Between Documentation and Implementation Open

google/error-prone#5218 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Check `equals()` implementations for `instanceof SomeUnrelatedType` Open

google/error-prone#5226 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
ByteBufferBackingArray should recognize hasArray() guards Open

google/error-prone#5241 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`AddNullMarkedToPackageInfo` should also report absent packages Open

google/error-prone#5261 · 2 comments · 3 reactions · 0 assignees · Indexed Sep 16, 2026
consider new PatchLocation mode `IN_PLACE_INCLUSIVE` Open

google/error-prone#5267 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessaryQualifier` emits false positive warning when using Guice `@AssistedInject` Open

google/error-prone#5273 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`ConstantNaming` not applied Open

google/error-prone#5277 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JavaDurationGetSecondsToToSeconds rule is misleading and possibly harmful Open

google/error-prone#5290 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Flag setTimestamp, getTimestamp, setObject(.., Timestamp), setObject(.., Date) and similar JDBC methods Open

google/error-prone#5291 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
patching is broken With 2.43.0 for `UnnecessarilyFullyQualified` Open

google/error-prone#5293 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.14.0:compile Open

lombok

google/error-prone#5298 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
A comparison operator (< > <= >=) between distinct integral types might hide a bug Open

google/error-prone#5331 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
picnic breaking `-XepDisableAllWarnings` Open

google/error-prone#5365 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
consider convention principle for `disableAllWarnings=true` Open

google/error-prone#5367 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Any simple way to completely disable messages from plugin checks at default `SUGGESTION` level? Open

google/error-prone#5387 · 11 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
`OverridingMethodInconsistentArgumentNamesChecker` fails when original function contains multiple parameters with the same name Open

google/error-prone#5398 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
NullablePrimitiveArray: An unhandled exception was thrown by the Error Prone static analysis plugin. Open

google/error-prone#5409 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Update docs for CheckReturnValue Open

google/error-prone#5419 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Java Records should automatically be flagged as @Immutable Open

google/error-prone#5420 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Mandatory Maven Wrapper: Overhead of Version Drift vs. Stability Benefits Open

google/error-prone#5421 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Document `AddNullMarkedToClass` and `AddNullMarkedToPackageInfo` Open

google/error-prone#5433 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Bug: False positive for ChainingConstructorIgnoresParameter for array concatenation passing Open

google/error-prone#5472 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
URLEncoder.encode(String, String) false positive Open

google/error-prone#5558 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Cannot suppress `AddNullMarkedToClass`, `AddNullMarkedToPackageInfo` Open

google/error-prone#5562 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`DefaultPackage` emitted for compact source files. Open

google/error-prone#5577 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
FieldMatchers throws null pointer exception on primitive class literals (e.g. `long.class`) Open

google/error-prone#5589 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
No documentation about what issues NullArgumentForNonNullParameter detects Open

google/error-prone#5597 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
@DoNotOverride for interface default methods Open

google/error-prone#5719 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add `AddNullMarkedToModuleInfo` Open

google/error-prone#5725 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Make PrivateConstructorForUtilityClass pass for non-exported class with main method Open

google/error-prone#5726 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
IllegalStateException in FieldCanBeFinal due to suggested fix Open

google/error-prone#5727 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
NotJavadoc Regression in 2.49.0 Open

google/error-prone#5739 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026

A short digest of beginner-friendly GitHub issues.