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This PR contains the following updates:

Package Change Age Confidence
com.google.errorprone:error_prone_core (source) 2.3.4 -> 2.42.0 age confidence

Release Notes

google/error-prone (com.google.errorprone:error_prone_core)

v2.42.0: Error Prone 2.42.0

New checks:

Changes:

  • The return type of ASTHelpers.asFlagSet has changed. The previous type was EnumSet<Flags.Flag>, where Flags.Flag is an enum in the javac class Flags. A recent JDK change has replaced that enum with a new top-level enum called FlagsEnum. It is not possible to change ASTHelpers.asFlagSet in a way that would be type-safe and compatible with the enums from JDKs both before and after the change. Instead, the method now returns ImmutableSet<String>, where the strings come from the toString() of the enum constants. That means they are "native", "abstract", etc.
  • Flag IO.print[ln]() in SystemOut.

Full changelog: google/error-prone@v2.41.0...v2.42.0

v2.41.0: Error Prone 2.41.0

New checks:

  • EffectivelyPrivate: Detect declarations that have public or protected modifiers, but are effectively private

Changes:

  • Skip BooleanLiteral findings if the target type is boxed (#​5134)

Full changelog: google/error-prone@v2.40.0...v2.41.0

v2.40.0: Error Prone 2.40.0

Changes:

Full changelog: google/error-prone@v2.39.0...v2.40.0

v2.39.0: Error Prone 2.39.0

Changes:

  • Temporarily downgrade to Guava 33.4.0 (#​5108)

Checks:

  • BooleanLiteral: Prefer true to Boolean.TRUE
  • ExpensiveLenientFormatString: Renamed from PreconditionsExpensiveString, detects unnecessary calls to String.format in the arguments of lenient formatting methods.
  • UnnecessaryQualifier: Detects @Qualifier or @BindingAnnotation annotations that have no effect, and can be removed

Issues: #​4996, #​5045

Full changelog: google/error-prone@v2.38.0...v2.39.0

v2.38.0: Error Prone 2.38.0

New checks:

Closed issues: #​4924, #​4897, #​4995

Full changelog: google/error-prone@v2.37.0...v2.38.0

v2.37.0: Error Prone 2.37.0

Changes:

  • The annotations that were previously in error_prone_type_annotations have been been merged into error_prone_annotations. error_prone_type_annotations is now deprecated, and will be removed in a future release.

New checks:

  • AssignmentExpression - The use of an assignment expression can be surprising and hard to read; consider factoring out the assignment to a separate statement.
  • IntFloatConversion - Detect calls to scalb that should be using the double overload instead
  • InvalidSnippet - Detects snippets which omit the : required for inline code.
  • JUnit4EmptyMethods - Detects empty JUnit4 @Before, @After, @BeforeClass, and @AfterClass methods.
  • MockIllegalThrows - Detects cases where Mockito is configured to throw checked exception types which are impossible.
  • NegativeBoolean - Prefer positive boolean names.
  • RuleNotRun - Detects TestRules not annotated with @Rule, that won't be run.
  • StringConcatToTextBlock - Replaces concatenated multiline strings with text blocks.
  • TimeInStaticInitializer - Detects accesses of the system time in static contexts.

Closed issues:

  • Propagate check flags in patch mode (#​4699)
  • Fixes a crash in ComputeIfAbsentAmbiguousReference (#​4736)
  • Show the field name in HidingField diagnostics (#​4775)
  • Add support for jakarta annotations to some checks (#​4782)
  • FloatingPointAssertionWithinEpsilonTest depends on default locale (#​4815)
  • @InlineMe patching of Strings.repeat produces broken code (#​4819)
  • Fix a crash in IdentifierName on unnamed (_) variables (#​4847)
  • Fix a crash in ArgumentParameterSwap (#​490)

Full changelog: google/error-prone@v2.36.0...v2.37.0

v2.36.0: Error Prone 2.36.0

Changes:

  • Add new matcher interfaces to ErrorProneScanner for AST nodes introduced after Java 11 (e5fd194)
  • Fix compatibility with latest JDK 24 EA builds (d67bc15)
  • Check that --should-stop=ifError=FLOW is set when using the -Xplugin integration (e71db1f)

New checks:

Closed issues: #​4633, #​4646

Full changelog: google/error-prone@v2.35.1...v2.36.0

v2.35.1: Error Prone 2.35.1

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Error Prone's dependency on protobuf has been downgraded to 3.25.5 for this release.

Version 3.25.5 of protobuf still fixes CVE-2024-7254. This release is provided for users who aren't ready to update to 4.x, see also #​4584 and #​4634. Future versions of Error Prone will upgrade back to protobuf 4.x.

Full changelog: google/error-prone@v2.35.0...v2.35.1

v2.35.0: Error Prone 2.35.0

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Changes:

  • Fix handling of \s before the trailing delimiter in MisleadingEscapedSpace
  • TimeUnitMismatch improvements: handle binary trees, consider trees like fooSeconds * 1000 to have units of millis

New checks:

Full changelog: google/error-prone@v2.34.0...v2.35.0

v2.34.0: Error Prone 2.34.0

Compare Source

Changes:

  • Passing the javac flag --should-stop=ifError=FLOW is now required when running Error Prone (#​4595)
  • The MemberName check was renamed to IdentifierName

New checks:

Closed issues: #​4595, #​4598, #​4620

Full changelog: google/error-prone@v2.33.0...v2.34.0

v2.33.0: Error Prone 2.33.0

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Similar to release 2.32.0, the minimum supported JDK version to run Error Prone is JDK 17 (#​3803). Using Error Prone to compile code that is deployed to earlier versions is still fully supported, but will require using JDK 17 or newer for compilation and setting --release or -source/-target/-bootclasspath.

Changes:

New checks:

Full changelog: google/error-prone@v2.32.0...v2.33.0

v2.32.0: Error Prone 2.32.0

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The minimum support JDK version to run Error Prone is now JDK 17 (#​3803).

Using Error Prone to compile code that is deployed to earlier versions is still fully supported, but will requires using JDK 17 or newer for compilation and setting --release or -source/-target/-bootclasspath.

Full changelog: google/error-prone@v2.31.0...v2.32.0

v2.31.0: Error Prone 2.31.0

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This is the last planned minor release of Error Prone that will support running on JDK 11, see #​3803. Using Error Prone to compile code that is deployed to earlier versions will continue to be fully supported, but will require using JDK 17 or newer for compilation and setting --release or -source/-target/-bootclasspath.

Changes:

New checks:

  • AutoValueBoxedValues: AutoValue instances should not usually contain boxed types that are not Nullable. We recommend removing the unnecessary boxing.

Full changelog: google/error-prone@v2.30.0...v2.31.0

v2.30.0: Error Prone 2.30.0

Compare Source

New checks:

Closed issues: #​632, #​4487

Full changelog: google/error-prone@v2.29.2...v2.30.0

v2.29.2: Error Prone 2.29.2

Compare Source

This release contains all of the changes in 2.29.0 and 2.29.1, plus:

  • a bug fix for a crash in TraditionalSwitchExpression (#​4479)
  • restores the module-info for the annotations jar, which was accidentally removed (#​4480)

Full Changelog: google/error-prone@v2.29.1...v2.29.2

v2.29.1: Error Prone 2.29.1

This release contains all of the changes in 2.29.0, plus:

  • a bug fix to UnusedVariable to handle unnamed _ variables (#​4451)
  • a bug fix for a crash in SetUnrecognized (#​4475)

Full Changelog: google/error-prone@v2.29.0...v2.29.1

v2.29.0: Error Prone 2.29.0

Compare Source

New checks:

Closed issues: #​4318, #​4429, #​4467

Full Changelog: google/error-prone@v2.28.0...v2.29.0

v2.28.0: Error Prone 2.28.0

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Error Prone nows supports the latest JDK 23 EA builds (#​4412, #​4415).

Closed issues:

  • Improved errors for invalid check severities (#​4306).
  • Fix a crash with nested instanceof patterns (#​4349).
  • Fix a crash in JUnitIncompatibleType (#​4377).
  • In ObjectEqualsForPrimitives, don't suggest replacing equal with == for floating-point values (#​4392).

New checks:

Full Changelog: google/error-prone@v2.27.1...v2.28.0

v2.27.1: Error Prone 2.27.1

Compare Source

This release contains all of the changes in 2.27.0, plus a bug fix to ClassInitializationDeadlock (#​4378)

Full Changelog: google/error-prone@v2.27.0...v2.27.1

v2.27.0: Error Prone 2.27.0

Compare Source

New checks:

  • ClassInitializationDeadlock detects class initializers that reference subtypes of the current class, which can result in deadlocks.
  • MockitoDoSetup suggests using when/thenReturn over doReturn/when for additional type safety.
  • VoidUsed suggests using a literal null instead of referring to a Void-typed variable.

Modified checks:

Closed issues: #​4291. #​4308, #​4343, #​4320

Full Changelog: google/error-prone@v2.26.1...v2.27.0

v2.26.1: Error Prone 2.26.1

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This release contains all of the changes in 2.26.0, plus a bug fix to the module name of the annotations artifact com.google.errorprone.annotations (9d99ee7)

Starting in 2.26.x, the 'annotations' artifact now includes a module-info.java for Java Platform Module System support, thanks to @​sgammon in #​4311.


Compatibility note:

Now that the annotations artifact explicit declares a module instead of relying on Automatic-Module-Name, JDK 17 and newer perform stricter module encapsulation checks. Modularized libraries depending on Error Prone annotations 2.26.x and newer may see errors like:

error: package com.google.errorprone.annotations is not visible
import com.google.errorprone.annotations.CheckReturnValue;
                            ^
  (package com.google.errorprone.annotations is declared in module com.google.errorprone.annotations, but module ... does not read it)

The fix is to add requires static to the module declaration of modularized libraries that depend on Error Prone annotations:

 module your.module {
...
+  requires static com.google.errorprone.annotations;
 }

Full Changelog: google/error-prone@v2.26.0...v2.26.1

v2.26.0: Error Prone 2.26.0

Compare Source

Warning: This release contains a bug, please use 2.26.1 or newer instead.

Changes:

  • The 'annotations' artifact now includes a module-info.java for Java Platform Module System support, thanks to @​sgammon in #​4311.
  • Disabled checks passed to -XepPatchChecks are now ignored, instead of causing a crash. Thanks to @​oxkitsune in #​4028.

New checks:

  • SystemConsoleNull: Null-checking System.console() is not a reliable way to detect if the console is connected to a terminal.
  • EnumOrdinal: Discourage uses of Enum.ordinal()

Closed issues: #​2649, #​3908, #​4028, #​4311, #​4314

Full Changelog: google/error-prone@v2.25.0...v2.26.0

v2.25.0: Error Prone 2.25.0

Compare Source

New checks:

Closed issues: #​4195, #​4224, #​4228, #​4248, #​4249, #​4251

Full Changelog: google/error-prone@v2.24.1...v2.25.0

v2.24.1: Error Prone 2.24.1

Compare Source

Changes:

  • Add an assertion to try to help debug #​4225

Full Changelog: google/error-prone@v2.24.0...v2.24.1

v2.24.0: Error Prone 2.24.0

Compare Source

New checks:

Full Changelog: google/error-prone@v2.23.0...v2.24.0

v2.23.0: Error Prone 2.23.0

Compare Source

New checks:

Bug fixes and improvements: #​3897, #​4114, #​4123

Full Changelog: google/error-prone@v2.22.0...v2.23.0

v2.22.0: Error Prone 2.22.0

Compare Source

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:

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: google/error-prone@v2.21.1...v2.22.0

v2.21.1: Error Prone 2.21.1

Compare Source

Changes:

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

Full Changelog: google/error-prone@v2.21.0...v2.21.1

v2.21.0: Error Prone 2.21.0

Compare Source

New Checkers:

Fixed issues: #​3976, #​3986, #​4001, #​4002, #​4026, #​4027

Full Changelog: google/error-prone@v2.20.0...v2.21.0

v2.20.0: Error Prone 2.20.0

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Changes:

  • This release is compatible with early-access builds of JDK 21.

New Checkers:

Fixes issues: #​2232, #​2243, #​2997, #​3301, #​3843, #​3903, #​3918, #​3923, #​3931, #​3945, #​3946

Full Changelog: google/error-prone@v2.19.1...v2.20.0

v2.19.1: Error Prone 2.19.1

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This release fixes a binary compatibility issue when running on JDK 11, see #​3895

Full Changelog: google/error-prone@v2.19.0...v2.19.1

v2.19.0: Error Prone 2.19.0

Compare Source

New Checkers:

Fixes issues: #​956, #​3504, #​3654, #​3703, #​3731, #​3737, #​3760, #​3779, #​3796, #​3809, #​3813

Full Changelog: google/error-prone@v2.18.0...v2.19.0

v2.18.0: Error Prone 2.18.0

Compare Source

New Checkers:

Fixes issues: #​1650, #​2706, #​3404, #​3493, #​3504, #​3519, #​3579, #​3610, #​3632, #​3638, #​3645, #​3646, #​3652, #​3690

Full Changelog: google/error-prone@v2.17.0...v2.18.0

v2.17.0: Error Prone 2.17.0

Compare Source

New Checkers:

Fixed issues: #​2321, #​3144, #​3297, #​3428, #​3437, #​3462, #​3482, #​3494

Full Changelog: google/error-prone@v2.16...v2.17.0

v2.16: Error Prone 2.16.0

Compare Source

New Checkers:

Fixed issues: #​3092, #​3220, #​3225, #​3267, #​3441

Full Changelog: google/error-prone@v2.15.0...v2.16

v2.15

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v2.15.0: Error Prone 2.15.0

Compare Source

New Checkers:

Fixed issues: #​1562, #​3236, #​3245, #​3321

Full Changelog: google/error-prone@v2.14.0...v2.15.0

v2.14.0: Error Prone 2.14.0

Compare Source

New checkers:

Fixed issues: #​3110, #​3193

Full Changelog: google/error-prone@v2.13.1...v2.14.0

v2.13.1: Error Prone 2.13.1

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What's Changed

  • Fix a crash in UnnecessaryBoxedVariable in #​3118
  • Include the unicode character in the diagnostic message in #​3119

Full Changelog: google/error-prone@v2.13.0...v2.13.1

v2.13.0: Error Prone 2.13.0

Compare Source

  • Handle all annotations with the simple name Generated in -XepDisableWarningsInGeneratedCode (#​3094)
  • Reconcile BugChecker#isSuppressed with suppression handling in ErrorProneScanner (#​3094)
  • Fix a bug in enclosingPackage (8fa64d4)
  • Improve performance of fix application (186334b)
  • Implicitly treat @AutoBuilder setter methods as @CanIgnoreReturnValue.
  • Remove some obsolete checks (PublicConstructorForAbstractClass, HashCodeToString)

Release Diff: v2.12.1...v2.13.0.

v2.12.1: Error Prone 2.12.1

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v2.12.0: Error Prone 2.12.0

Compare Source

New checks

Fixed issues: #​58, #​65, #​1327, #​1654, #​2858, #​2867, #​2916, #​2951, #​2954, #​3006, #​3008

Full Changelog: google/error-prone@v2.11.0...v2.12.0

v2.11.0: Error Prone 2.11.0

Compare Source

Error Prone now requires JDK 11 or newer (#​2730).

New checks

Fixed issues: #​2641, #​2705, #​2776, #​2798, #​2799, #​2819, #​2820, #​2831, #​2833, #​2834, #​2835, #​2861, #​2873, #​2889, #​2892, #​2901

Full Changelog: google/error-prone@v2.10.0...v2.11.0

v2.10.0: Error Prone 2.10.0

Compare Source

New checks

Fixed issues: #​2616, #​2629

Full Changelog: google/error-prone@v2.9.0...v2.10.0

v2.9.0: Error Prone 2.9.0

Compare Source

Release Error Prone 2.9.0

New checks:

  • DeprecatedVariable
  • PublicApiNamedStreamShouldReturnStream

Fixes #​2124, #​2371, #​2393, #​2470

v2.8.1: Error Prone 2.8.1

Compare Source

This release adds a new check (LoopOverCharArray), and a handful of other small improvements (google/error-prone@v2.8.0...v2.8.1).

v2.8.0: Error Prone 2.8.0

Compare Source

New Checks:


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@renovate renovate bot force-pushed the renovate/com.google.errorprone-error_prone_core-2.x branch from 123fb77 to f767ba7 Compare September 19, 2025 22:07
@renovate renovate bot changed the title chore(deps): update dependency com.google.errorprone:error_prone_core to v2.41.0 chore(deps): update dependency com.google.errorprone:error_prone_core to v2.42.0 Sep 19, 2025
@renovate renovate bot force-pushed the renovate/com.google.errorprone-error_prone_core-2.x branch 4 times, most recently from 30835da to b00958d Compare October 2, 2025 13:14
@renovate renovate bot force-pushed the renovate/com.google.errorprone-error_prone_core-2.x branch 2 times, most recently from eee05cd to 1128203 Compare October 2, 2025 18:05
@renovate renovate bot force-pushed the renovate/com.google.errorprone-error_prone_core-2.x branch from 1128203 to 55cc840 Compare October 3, 2025 20:35
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Closed in favor #684

@dkropachev dkropachev closed this Oct 3, 2025
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Because you closed this PR without merging, Renovate will ignore this update (2.42.0). You will get a PR once a newer version is released. To ignore this dependency forever, add it to the ignoreDeps array of your Renovate config.

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@renovate renovate bot deleted the renovate/com.google.errorprone-error_prone_core-2.x branch October 3, 2025 21:10
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