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

`UnusedVariable` behaves inconsistently for method references and equivalent lambda expressions. Open

google/error-prone#5758 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`BigDecimalLiteralDouble ` false negative for the boxed value Open

google/error-prone#5759 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`DefaultCharset` false negative in method-reference Open

google/error-prone#5760 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`StringCaseLocaleUsage ` false negative for `@VisibleForTesting` annotation Open

google/error-prone#5776 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`DefaultLocale` is too coarse-grained Open

google/error-prone#5807 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
disableWarningsInGeneratedCode does not suppress warnings for jakarta.annotation.Generated Open

google/error-prone#5812 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
StringConcatToTextBlock fails for class with @RequiredArgsConstructor Open

google/error-prone#5815 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`LoopConditionChecker` fails to resolve compile-time constant loop bounds, missing genuine infinite loops Open

google/error-prone#5826 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`AssignmentExpression` matcher is not parenthesis-invariant on nested assignments Open

google/error-prone#5827 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessaryStringBuilder` misses the split declaration/assignment form Open

google/error-prone#5828 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessaryAsync` misses the split declaration/assignment form Open

google/error-prone#5829 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
FN: `EqualsUsingHashCode` misses equals() that extracts hashCode() into locals Open

google/error-prone#5830 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`FormatString` false positive on a switch-expression argument to printf("%d", ...) Open

google/error-prone#5831 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Multiple checks are not parenthesis-invariant: matchers don't look through ParenthesizedTree Open

google/error-prone#5845 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
2.50.0 false positive UnrecognisedJavadocTag with Lombok Open

lombok

google/error-prone#5855 · 1 comment · 4 reactions · 0 assignees · Indexed Sep 16, 2026
Add pattern for Comparator combinators Open

google/error-prone#5888 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Varifier doesn't always trigger Open

google/error-prone#5935 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
GuardedBy false positive with Runnable passed to a user method known to invoke synchronously Open

google/error-prone#5938 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Varifier + VarWithPrimitive conflict when casted Open

google/error-prone#5949 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
AvoidCommonTypeNames false positives when using --release Open

google/error-prone#5957 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
[false negative] DoubleCheckedLocking: not reported when the outer null check is written as !(x != null) Open

google/error-prone#5963 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Lombok causes com.google.errorprone.SourcePositionException in UnusedVariable Open

lombok

google/error-prone#5964 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Support meta annotation for `@ThreadSafe` Open

google/error-prone#6042 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Check to enforce accessor usage on nested record classes Open

google/error-prone#6048 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Detecting package as unused variable Open

google/error-prone#6050 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
`UnnecessarilyFullyQualified` is inconsistent between `module-info.java` and `package-info.java` Open

google/error-prone#6054 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
BadImport: SourcePositionException building the suggested fix for a record component with a TYPE_USE annotation Open

google/error-prone#6074 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Per-check timing spans cost a few percent of the compile, and nothing reads the timings Open

google/error-prone#6079 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
[feat.request] add comparative in README.md to error-prone alternatives Open

google/error-prone#6086 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Unknown error that error prone told me to report Open

google/error-prone#6103 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
New check request: OutputStream subclasses that inherit the per-byte write(byte[], int, int) Open

google/error-prone#6106 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Check MessageFormat patterns and arguments, including in methods that delegate to MessageFormat Open

google/error-prone#6113 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
CompilationTestHelper reports only the first line that fails its expectation Open

google/error-prone#6116 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026

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