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 (google/error-prone@d67bc15)
• Check that --should-stop=ifError=FLOW is set when using the -Xplugin integration (e71db1f)

New checks:

• DuplicateBranches: Discourage conditional expressions and if statements where both branches are the same
• RedundantControlFlow: Reports redundant continue statements.

Closed issues: #​4633, #​4646

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

v2.35.1: Error Prone 2.35.1

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

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:

• JavaDurationGetSecondsToToSeconds: Prefer duration.toSeconds() over duration.getSeconds()

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

v2.34.0: Error Prone 2.34.0

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:

• FutureTransformAsync: The usage of transformAsync is not necessary when all the return values of the transformation function are immediate futures.
• MisformattedTestData: Reformats Java source code inside Error Prone test cases.
• MisleadingEscapedSpace: Using \s anywhere except at the end of a line in a text block is potentially misleading.
• ThrowIfUncheckedKnownUnchecked: throwIfUnchecked(knownUnchecked) is equivalent to throw knownUnchecked.

Closed issues: #​4595, #​4598, #​4620

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

v2.33.0: Error Prone 2.33.0

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:

• Update protobuf version for CVE-2024-7254

New checks:

• ArrayRecordComponent: Record components should not be arrays.

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

v2.32.0: Error Prone 2.32.0

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

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:

• Introduce @ThreadSafeTypeParameter with enforcement by ThreadSafe
• Improved support for latest JDK 24 EA builds
• Error Prone is now distributed as a Multi-Release jar (#​3756)

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

New checks:

• AutoValueBoxedValues: Detects unnecessary boxing in AutoValue classes.
• DefaultLocale: Detects implicit use of the JVM default locale, which can result in differing behaviour between JVM executions.
• UnnecessaryBreakInSwitch: Remove unnecessary break statements in -> switches.

Closed issues: #​632, #​4487

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

v2.29.2: Error Prone 2.29.2

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

• a bug fix for a crash in TraditionalSwitchExpression (https://github.com/google/error-prone/issues/4479)
• restores the module-info for the annotations jar, which was accidentally removed (https://github.com/google/error-prone/issues/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 (https://github.com/google/error-prone/issues/4451)
• a bug fix for a crash in SetUnrecognized (https://github.com/google/error-prone/issues/4475)

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

v2.29.0: Error Prone 2.29.0

New checks:

• MissingRuntimeRetention
• SetUnrecognized
• StatementSwitchToExpressionSwitch

Closed issues: #​4318, #​4429, #​4467

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

v2.28.0: Error Prone 2.28.0

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:

• DeeplyNested discourages very deeply nested code that can cause StackOverflowErrors during compilation.
• GuiceNestedCombine discourages nesting of Modules.combine(), which is unnecessary.
• PatternMatchingInstanceof migrates code to use pattern matching for instanceof
• SunApi discourages use of internal proprietary JDK APIs which may be removed from future releases.

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