Uses of Class
com.google.errorprone.bugpatterns.BugChecker

Packages that use BugChecker

Package	Description
com.google.errorprone
com.google.errorprone.bugpatterns	Checks added to the java compiler which detect common bug patterns.
com.google.errorprone.bugpatterns.android
com.google.errorprone.bugpatterns.apidiff
com.google.errorprone.bugpatterns.argumentselectiondefects
com.google.errorprone.bugpatterns.checkreturnvalue
com.google.errorprone.bugpatterns.collectionincompatibletype
com.google.errorprone.bugpatterns.flogger
com.google.errorprone.bugpatterns.formatstring
com.google.errorprone.bugpatterns.inject	Bug patterns related to dependency injection and JSR 330.
com.google.errorprone.bugpatterns.inject.dagger	Bug patterns related to Dagger.
com.google.errorprone.bugpatterns.inject.guice	Bug patterns related to Guice.
com.google.errorprone.bugpatterns.inlineme
com.google.errorprone.bugpatterns.javadoc
com.google.errorprone.bugpatterns.nullness
com.google.errorprone.bugpatterns.overloading
com.google.errorprone.bugpatterns.threadsafety
com.google.errorprone.bugpatterns.time
com.google.errorprone.scanner

Uses of BugChecker in com.google.errorprone

Methods in com.google.errorprone that return types with arguments of type BugChecker

Modifier and Type	Method	Description
Class<? extends BugChecker>	BugCheckerInfo.checkerClass()

Methods in com.google.errorprone with parameters of type BugChecker

Modifier and Type	Method	Description
void	VisitorState.incrementCounter(BugChecker bugChecker, String key)	Increment the counter for a combination of bugChecker's canonical name and key by 1.
void	VisitorState.incrementCounter(BugChecker bugChecker, String key, int count)	Increment the counter for a combination of bugChecker's canonical name and key by count.
static BugCheckerRefactoringTestHelper	BugCheckerRefactoringTestHelper.newInstance(BugChecker refactoringBugChecker, Class<?> clazz)	Deprecated. prefer BugCheckerRefactoringTestHelper.newInstance(Class, Class)

Method parameters in com.google.errorprone with type arguments of type BugChecker

Modifier and Type	Method	Description
static BugCheckerInfo	BugCheckerInfo.create(Class<? extends BugChecker> checker)
static BugCheckerRefactoringTestHelper	BugCheckerRefactoringTestHelper.newInstance(Class<? extends BugChecker> checkerClass, Class<?> clazz)
static CompilationTestHelper	CompilationTestHelper.newInstance(Class<? extends BugChecker> checker, Class<?> clazz)	Returns a new CompilationTestHelper.

Uses of BugChecker in com.google.errorprone.bugpatterns

Subclasses of BugChecker in com.google.errorprone.bugpatterns

Modifier and Type	Class	Description
class	AbstractAsKeyOfSetOrMap	Check for usage of Set<T> or Map<T, E>.
class	AbstractBanUnsafeAPIChecker	An abstract class that detects use of the unsafe APIs.
class	AbstractMockChecker<T extends Annotation>	Helper for enforcing Annotations that disallow mocking.
class	AbstractMustBeClosedChecker	An abstract check for resources that must be closed; used by StreamResourceLeak and MustBeClosedChecker.
class	AbstractPatternSyntaxChecker	Finds calls to regex-accepting methods with literal strings.
class	AbstractReferenceEquality	Abstract implementation of a BugPattern that detects the use of reference equality to compare classes with value semantics.
class	AbstractReturnValueIgnored	An abstract base class to match API usages in which the return value is not used.
class	AbstractToString	An abstract matcher for implicit and explicit calls to Object.toString(), for use on types that do not have a human-readable toString() implementation.
class	AbstractUseSwitch	Helper for refactoring from if-else chains to switches.
final class	AddressSelection	A BugChecker; see the associated BugPattern annotation for details.
final class	AlreadyChecked	Bugpattern to find conditions which are checked more than once.
class	AlwaysThrows	A BugChecker; see the associated BugPattern annotation for details.
class	AmbiguousMethodReference	A BugChecker; see the associated BugPattern annotation for details.
final class	AnnotateFormatMethod	Detects occurrences of pairs of parameters being passed straight through to String.format(java.lang.String, java.lang.Object...) from a method not annotated with FormatMethod.
class	AnnotationMirrorToString	A BugChecker; see the associated BugPattern annotation for details.
final class	AnnotationPosition	Checks annotation positioning, and orphaned Javadocs.
class	AnnotationValueToString	A BugChecker; see the associated BugPattern annotation for details.
class	ArrayAsKeyOfSetOrMap	Warns that users should not have an array as a key to a Set or Map
class	ArrayEquals
class	ArrayFillIncompatibleType	Checks when Arrays.fill(Object[], Object) is called with object types that are guaranteed to result in an ArrayStoreException.
class	ArrayHashCode
final class	ArrayRecordComponent	A BugChecker; see the associated BugPattern annotation for details.
class	ArraysAsListPrimitiveArray
class	ArrayToString
class	AssertFalse
class	AssertionFailureIgnored	A BugChecker; see the associated BugPattern annotation for details.
class	AssertThrowsMultipleStatements	A BugChecker; see the associated BugPattern annotation for details.
class	ASTHelpersSuggestions	A BugPattern; see the summary
final class	AsyncCallableReturnsNull	Checks that AsyncCallable implementations do not directly return null.
final class	AsyncFunctionReturnsNull	Checks that AsyncFunction implementations do not directly return null.
class	AttemptedNegativeZero	A BugPattern; see the summary.
class	AutoValueBoxedValues	See summary for details.
final class	AutoValueBuilderDefaultsInConstructor	See summary for details.
class	AutoValueFinalMethods	Checks the toString(), hashCode() and equals() methods are final in AutoValue classes.
class	AutoValueImmutableFields	Flags mutable collections in AutoValue.
final class	AutoValueSubclassLeaked	Matches AutoValue_ uses outside the containing file.
class	AvoidObjectArrays	A BugChecker; see the associated BugPattern annotation for details.
class	BadAnnotationImplementation	Checker that ensures implementations of Annotation override equals and hashCode.
class	BadComparable
class	BadImport
final class	BadInstanceof	Matches instanceof checks where the expression is a subtype of the checked type.
class	BadShiftAmount
final class	BanClassLoader	A BugChecker that detects use of the unsafe JNDI API system.
final class	BanJNDI	A BugChecker that detects use of the unsafe JNDI API system.
final class	BanSerializableRead	A BugChecker that detects use of the unsafe Serializable API.
class	BareDotMetacharacter	A BugChecker; see the associated BugPattern for details.
final class	BigDecimalEquals	Matches use of BigDecimal#equals, which compares scale as well (which is not likely to be intended).
class	BigDecimalLiteralDouble	Matches usages of new BigDecimal(double) which lose precision.
class	BooleanParameter	A BugChecker; see the associated BugPattern annotation for details.
class	BoxedPrimitiveConstructor	A BugChecker; see the associated BugPattern annotation for details.
final class	BoxedPrimitiveEquality	A BugChecker; see the associated BugPattern annotation for details.
final class	BugPatternNaming	See the summary.
class	ByteBufferBackingArray	Checks when ByteBuffer.array() is used without calling .arrayOffset() to know the offset of the array, or when the buffer wasn't initialized using ByteBuffer.wrap() or ByteBuffer.allocate().
class	CacheLoaderNull	A BugChecker; see the associated BugPattern annotation for details.
class	CannotMockFinalClass	Bug pattern to recognize attempts to mock final types.
final class	CannotMockMethod	A BugPattern; see the summary
class	CanonicalDuration	A BugChecker; see the associated BugPattern annotation for details.
class	CatchAndPrintStackTrace	A BugChecker; see the associated BugPattern annotation for details.
class	CatchFail	A BugChecker; see the associated BugPattern annotation for details.
final class	CatchingUnchecked	Flags code which catches RuntimeExceptions under the guise of catching Exception.
final class	ChainedAssertionLosesContext	Identifies calls to assertThat and similar methods inside the implementation of a Subject assertion method.
final class	ChainingConstructorIgnoresParameter	Checks, if two constructors in a class both accept Foo foo and one calls the other, that the caller passes foo as a parameter.
class	CharacterGetNumericValue	Checks for use of Character.getNumericValue and UCharacter.getNumericValue
final class	CheckedExceptionNotThrown	Flags checked exceptions which are claimed to be thrown, but are not.
final class	CheckNotNullMultipleTimes	Checks for the same variable being checked against null twice in a method.
class	CheckReturnValue
class	ClassCanBeStatic
class	ClassInitializationDeadlock	See the summary.
class	ClassName	A BugChecker; see the associated BugPattern annotation for details.
class	ClassNamedLikeTypeParameter
class	ClassNewInstance	A BugChecker; see the associated BugPattern annotation for details.
class	ClosingStandardOutputStreams	A BugChecker; see the associated BugPattern annotation for details.
class	CollectionToArraySafeParameter
class	CollectorShouldNotUseState
class	ComparableAndComparator
class	ComparableType
final class	CompareToZero	Suggests comparing the result of compareTo to only 0.
class	ComparingThisWithNull	Check for expressions containing this != null or this == null
class	ComparisonContractViolated
class	ComparisonOutOfRange	A BugChecker; see the associated BugPattern annotation for details.
class	CompileTimeConstantChecker	A Bugpattern; see the accompanying Markdown documentation.
class	ComplexBooleanConstant
final class	ComputeIfAbsentAmbiguousReference	Flags ambiguous creations of objects in Map.computeIfAbsent(K, java.util.function.Function<? super K, ? extends V>).
class	ConditionalExpressionNumericPromotion
class	ConstantField	A BugChecker; see the associated BugPattern annotation for details.
class	ConstantOverflow	A BugChecker; see the associated BugPattern annotation for details.
final class	ConstantPatternCompile	Flags variables initialized with Pattern.compile(String) calls that could be constants.
class	DangerousLiteralNullChecker	A BugChecker; see the associated BugPattern annotation for details.
class	DateFormatConstant	A BugChecker; see the associated BugPattern annotation for details.
class	DeadException
class	DeadThread	A BugChecker; see the associated BugPattern annotation for details.
class	DeduplicateConstants	A checker that suggests deduplicating literals with existing constant variables.
class	DeeplyNested	A BugChecker; see the associated BugPattern annotation for details.
class	DefaultCharset	A BugChecker; see the associated BugPattern annotation for details.
class	DefaultLocale	A BugChecker; see the associated BugPattern annotation for details.
final class	DefaultPackage	Java classes shouldn't use default package.
class	DepAnn	Matches the behaviour of the javac dep-ann Xlint warning.
class	DeprecatedVariable	A BugChecker; see the associated BugPattern annotation for details.
final class	DifferentNameButSame	Discourages using multiple names to refer to the same type within a file (e.g.
final class	DirectInvocationOnMock	A bugpattern; see the description.
class	DiscardedPostfixExpression	A BugChecker; see the associated BugPattern annotation for details.
final class	DistinctVarargsChecker	ErrorProne checker to generate warning when method expecting distinct varargs is invoked with same variable argument.
class	DoNotCallChecker	A BugChecker; see the associated BugPattern annotation for details.
class	DoNotCallSuggester	If a method always throws an exception, consider annotating it with @DoNotCall to prevent calls at compile-time instead failing at runtime.
class	DoNotClaimAnnotations	A BugChecker; see the associated BugPattern annotation for details.
final class	DoNotMockAutoValue	Suggests not mocking AutoValue classes.
class	DoNotMockChecker	Points out if a Mockito or EasyMock mock is mocking an object that would be better off being tested using an alternative instance.
class	DoubleBraceInitialization	A BugChecker; see the associated BugPattern annotation for details.
class	DuplicateBranches	A BugChecker; see the associated BugPattern annotation for details.
final class	DuplicateDateFormatField	Flag DateFormats which use the same field more than once.
class	DuplicateMapKeys	Flags duplicate keys used in ImmutableMap construction.
class	EmptyCatch	A BugChecker; see the associated BugPattern annotation for details.
class	EmptyIfStatement	This checker finds and fixes empty statements after an if, with no else part.
final class	EmptyTopLevelDeclaration	A BugChecker; see the associated BugPattern annotation for details.
final class	EnumOrdinal	Discourages the use of Enum.ordinal() and other ways to access enum values by index.
final class	EqualsGetClass	Discourages the use of Object.getClass() when implementing Object.equals(Object) for non-final classes.
class	EqualsHashCode	Classes that override Object.equals(java.lang.Object) should also override Object.hashCode().
class	EqualsIncompatibleType
class	EqualsNaN
final class	EqualsNull	A BugChecker; see the associated BugPattern annotation for details.
class	EqualsReference
final class	EqualsUnsafeCast	Checks for equals implementations making unsafe casts.
final class	EqualsUsingHashCode	Discourages implementing equals using hashCode.
final class	EqualsWrongThing	Checks for equals implementations comparing non-corresponding fields.
final class	ErroneousBitwiseExpression	A BugPattern; see the summary.
final class	ErroneousThreadPoolConstructorChecker	ErrorProne checker to generate warning whenever ThreadPoolExecutor is constructed with different corePoolSize and maximumPoolSize using an unbounded workQueue
class	ExpectedExceptionChecker	A BugChecker; see the associated BugPattern annotation for details.
class	ExtendingJUnitAssert
final class	ExtendsAutoValue	Makes sure that you are not extending a class that has @AutoValue as an annotation.
class	FallThrough	A BugChecker; see the associated BugPattern annotation for details.
class	FieldCanBeFinal
final class	FieldCanBeLocal	Flags fields which can be replaced with local variables.
final class	FieldCanBeStatic	Finds fields which can be safely made static.
class	Finalize	A BugChecker; see the associated BugPattern annotation for details.
class	Finally	Matches the behaviour of javac's finally Xlint warning.
class	FloatCast	A BugChecker; see the associated BugPattern annotation for details.
final class	FloatingPointAssertionWithinEpsilon	Detects usages of Float,DoubleSubject.isWithin(TOLERANCE).of(EXPECTED) where there are no other floating point values other than EXPECTED with satisfy the assertion, but TOLERANCE is not zero.
class	FloatingPointLiteralPrecision	A BugChecker; see the associated BugPattern annotation for details.
class	ForEachIterable	A BugChecker; see the associated BugPattern annotation for details.
class	ForOverrideChecker	Verifies that methods marked ForOverride are only called from the defining class.
class	FunctionalInterfaceClash	A BugChecker; see the associated BugPattern annotation for details.
class	FunctionalInterfaceMethodChanged
final class	FutureReturnValueIgnored	See BugPattern annotation.
final class	FuturesGetCheckedIllegalExceptionType	Checks for calls to Guava's Futures.getChecked method that will always fail because they pass an incompatible exception type.
final class	FutureTransformAsync	See summary for details.
class	FuzzyEqualsShouldNotBeUsedInEqualsMethod
class	GetClassOnAnnotation	A BugChecker; see the associated BugPattern annotation for details.
class	GetClassOnClass
class	GetClassOnEnum	A BugChecker; see the associated BugPattern annotation for details.
final class	GuiceNestedCombine	A BugChecker; see the associated BugPattern annotation for details.
class	HashtableContains	A BugChecker; see the associated BugPattern annotation for details.
class	HidingField
class	ICCProfileGetInstance	A BugChecker; see the associated BugPattern annotation for details.
final class	IdentifierName	Flags a few ways in which member names may violate the style guide.
class	IdentityBinaryExpression	A BugChecker; see the associated BugPattern annotation for details.
class	IdentityHashMapBoxing	A BugChecker; see the associated BugPattern annotation for details.
class	IdentityHashMapUsage	A BugChecker; see the associated BugPattern annotation for details.
final class	IgnoredPureGetter	Flags ignored return values from pure getters.
final class	ImmutableMemberCollection	Refactoring to suggest Immutable types for member collection that are not mutated.
final class	ImmutableSetForContains	Refactoring to suggest using private static final ImmutableSet over ImmutableList when using only contains, containsAll and isEmpty.
final class	ImplementAssertionWithChaining	Migrates Truth subjects from a manual "test and fail" approach to one using Subject.check(...).
final class	ImpossibleNullComparison	Matches comparison of proto fields to null.
class	Incomparable	A BugChecker; see the associated BugPattern annotation for details.
class	IncompatibleModifiersChecker
class	InconsistentCapitalization	Checker for variables under the same scope that only differ in capitalization.
final class	InconsistentHashCode	Looks for hashCode implementations which are inconsistent with equals.
final class	IncorrectMainMethod	Bugpattern for incorrect overloads of main.
class	IncrementInForLoopAndHeader
class	IndexOfChar	A BugChecker; see the associated BugPattern annotation for details.
class	InexactVarargsConditional	A BugChecker; see the associated BugPattern annotation for details.
class	InfiniteRecursion	A BugChecker; see the associated BugPattern annotation for details.
final class	InitializeInline	Bugpattern to encourage initializing effectively final variables inline with their declaration, if possible.
final class	InjectOnBugCheckers	A BugPattern; see the summary.
class	InlineTrivialConstant	A BugChecker; see the associated BugPattern annotation for details.
class	InputStreamSlowMultibyteRead	Checks that InputStreams should override int read(byte[], int, int);
class	InsecureCipherMode
class	InstanceOfAndCastMatchWrongType
final class	InterfaceWithOnlyStatics	Bugpattern to detect interfaces used only to store static fields/methods.
final class	InterruptedExceptionSwallowed	Checks for cases where an InterruptedException is caught as part of a catch block catching a supertype, and not specially handled.
class	Interruption	A BugChecker; see the associated BugPattern annotation for details.
class	IntLongMath	A BugChecker; see the associated BugPattern annotation for details.
class	InvalidPatternSyntax
class	InvalidTimeZoneID
class	InvalidZoneId	Validates ZoneId.
final class	IsInstanceIncompatibleType
class	IsInstanceOfClass	A BugChecker; see the associated BugPattern annotation for details.
class	IterableAndIterator
class	IterablePathParameter	A BugChecker; see the associated BugPattern annotation for details.
class	JavaLangClash	A BugChecker; see the associated BugPattern annotation for details.
class	JavaUtilDateChecker	A BugChecker; see the associated BugPattern annotation for details.
class	JdkObsolete	A BugChecker; see the associated BugPattern annotation for details.
class	JUnit3FloatingPointComparisonWithoutDelta	Detects floating-point assertEquals() calls that will not work in JUnit 4.
final class	JUnit3TestNotRun	A bugpattern; see the associated summary.
class	JUnit4ClassAnnotationNonStatic	@BeforeClass or @AfterClass should be applied to static methods.
class	JUnit4ClassUsedInJUnit3
class	JUnit4SetUpNotRun	Checks for the existence of a JUnit3 style setUp() method in a JUnit4 test class or methods annotated with a non-JUnit4 @Before annotation.
class	JUnit4TearDownNotRun	Checks for the existence of a JUnit3 style tearDown() method in a JUnit4 test class or methods annotated with a non-JUnit4 @After annotation.
class	JUnit4TestNotRun
final class	JUnit4TestsNotRunWithinEnclosed	Finds tests that won't run due to the enclosing runner.
class	JUnitAmbiguousTestClass
class	JUnitAssertSameCheck	Points out if an object is tested for reference equality to itself using JUnit library.
class	JUnitParameterMethodNotFound	Checks if the methods specified in junitparams.Parameters annotation to provide parameters exists.
class	LabelledBreakTarget	A BugPattern; see the summary.
class	LambdaFunctionalInterface
final class	LenientFormatStringValidation	A BugPattern; see the summary.
class	LiteByteStringUtf8
class	LiteEnumValueOf	Points out if #valueOf() is called on a Protocol Buffer Enum.
final class	LiteProtoToString	Flags calls to toString on lite protos.
final class	LockNotBeforeTry	Suggests that calls to Lock.lock must be immediately followed by a try-finally that calls Lock.unlock.
class	LockOnBoxedPrimitive	Detects locks on boxed primitives.
class	LockOnNonEnclosingClassLiteral	Bug checker to detect the usage of lock on the class other than the enclosing class of the code block.
class	LogicalAssignment	A BugChecker; see the associated BugPattern annotation for details.
final class	LongDoubleConversion	A BugChecker; see the associated BugPattern annotation for details.
class	LongFloatConversion	A BugChecker; see the associated BugPattern annotation for details.
class	LongLiteralLowerCaseSuffix	Matcher for a long literal with a lower-case ell for a suffix (e.g.
class	LoopConditionChecker	A BugChecker; see the associated BugPattern annotation for details.
class	LoopOverCharArray	A BugChecker; see the associated BugPattern annotation for details.
class	LossyPrimitiveCompare	Checker to prevent usages of comparison methods where both the operands undergo lossy widening.
final class	MathAbsoluteNegative
final class	MathRoundIntLong	Check for calls to Math's Math.round(float) with an integer or long parameter.
class	MemoizeConstantVisitorStateLookups	A BugChecker; see the associated BugPattern annotation for details.
class	MethodCanBeStatic	A BugChecker; see the associated BugPattern annotation for details.
final class	MisformattedTestData	See the summary.
final class	MisleadingEscapedSpace	See the summary.
class	MissingBraces	A BugChecker; see the associated BugPattern annotation for details.
class	MissingCasesInEnumSwitch	A BugChecker; see the associated BugPattern annotation for details.
class	MissingDefault	A BugChecker; see the associated BugPattern annotation for details.
class	MissingFail
class	MissingImplementsComparable	A BugChecker; see the associated BugPattern annotation for details.
class	MissingOverride	A BugChecker; see the associated BugPattern annotation for details.
final class	MissingRefasterAnnotation	A BugChecker; see the associated BugPattern annotation for details.
class	MissingSuperCall
final class	MissingTestCall	Matches test helpers which require a terminating method to be called.
class	MisusedDateFormat	Base class for checks which find common errors in date format patterns.
final class	MisusedDayOfYear	Ban use of D (day-of-year) in a date format pattern that also contains M (month-of-year).
final class	MisusedWeekYear	Ban use of YYYY in a SimpleDateFormat pattern, unless it is being used for a week date.
class	MixedArrayDimensions	A BugChecker; see the associated BugPattern annotation for details.
final class	MixedDescriptors	Checks for calls to Descriptor#findFieldByNumber with field numbers from a different proto.
final class	MixedMutabilityReturnType	Flags methods which return mutable collections from some code paths, but immutable ones from others.
final class	MockitoDoSetup	A BugPattern; see the summary.
class	MockitoUsage	A BugChecker; see the associated BugPattern annotation for details.
final class	MockNotUsedInProduction	A BugPattern; see the summary.
class	ModifiedButNotUsed	Matches creation of new collections/proto builders which are modified but never used.
class	ModifyCollectionInEnhancedForLoop
class	ModifyingCollectionWithItself
class	ModifySourceCollectionInStream	Identify the backing collection source of a stream and reports if the source is mutated during the stream operations.
final class	MultimapKeys	A BugPattern; see the summary.
class	MultipleParallelOrSequentialCalls
final class	MultipleTopLevelClasses	A BugChecker; see the associated BugPattern annotation for details.
class	MultipleUnaryOperatorsInMethodCall
class	MultiVariableDeclaration	A BugChecker; see the associated BugPattern annotation for details.
class	MustBeClosedChecker	Checks if a constructor or method annotated with MustBeClosed is called within the resource variable initializer of a try-with-resources statement.
class	MutableGuiceModule	A BugChecker; see the associated BugPattern annotation for details.
class	MutablePublicArray	Check for public static final declaration of Arrays.
final class	NamedLikeContextualKeyword	Warns on classes or methods being named similarly to contextual keywords, or invoking such methods.
final class	NarrowCalculation	A BugPattern; see the summary.
class	NarrowingCompoundAssignment	A BugChecker; see the associated BugPattern annotation for details.
class	NCopiesOfChar	A BugChecker; see the associated BugPattern annotation for details.
class	NegativeCharLiteral	A BugChecker; see the associated BugPattern annotation for details.
class	NestedInstanceOfConditions
class	NewFileSystem	A BugChecker; see the associated BugPattern annotation for details.
class	NoAllocationChecker	Checks methods annotated with @NoAllocation to ensure they really do not allocate.
final class	NonApiType	Flags instances of non-API types from being accepted or returned in APIs.
class	NonAtomicVolatileUpdate	Detects non-atomic updates to volatile variables.
class	NonCanonicalStaticImport	Types shouldn't be statically by their non-canonical name.
class	NonCanonicalStaticMemberImport	Members shouldn't be statically imported by their non-canonical name.
final class	NonCanonicalType	Flags types being referred to by their non-canonical name.
class	NonFinalCompileTimeConstant	Enforce that @CompileTimeConstant parameters are final or effectively final.
final class	NonFinalStaticField	A BugPattern; see the summary.
class	NonOverridingEquals	Bug checker for equals methods that don't actually override equals.
class	NonRuntimeAnnotation
class	NullableConstructor	A BugChecker; see the associated BugPattern annotation for details.
final class	NullableOnContainingClass	A bugpattern; see the summary.
final class	NullableOptional	A Checker that catches Optional/Optional with Nullable annotation.
class	NullableVoid	A BugChecker; see the associated BugPattern annotation for details.
final class	NullOptional	Flags passing literal null to Optional-accepting APIs.
class	NullTernary	A BugChecker; see the associated BugPattern annotation for details.
class	ObjectEqualsForPrimitives	Check for usage of Objects.equal on primitive types.
final class	ObjectsHashCodePrimitive	Check for calls to Objects' Objects.hashCode(java.lang.Object) with a primitive parameter.
class	ObjectToString	Warns against calling toString() on Objects which don't have toString() method overridden and won't produce meaningful output.
class	OperatorPrecedence	A BugChecker; see the associated BugPattern annotation for details.
class	OptionalEquality	A BugChecker; see the associated BugPattern annotation for details.
final class	OptionalMapToOptional	Matches Optional#map mapping to another Optional.
final class	OptionalMapUnusedValue	Replaces Optional.map with Optional.ifPresent if the value is unused.
final class	OptionalNotPresent
class	OptionalOfRedundantMethod	Checks if Optional#of is chained with a redundant method.
class	OrphanedFormatString	A BugChecker; see the associated BugPattern annotation for details.
class	OutlineNone	Check for the a11y antipattern of setting CSS outline attributes to none or 0.
class	Overrides	Matches the behaviour of javac's overrides Xlint warning.
final class	OverrideThrowableToString	Warns against overriding toString() in a Throwable class and suggests getMessage()
class	OverridingMethodInconsistentArgumentNamesChecker	A BugChecker; see the associated BugPattern annotation for details.
class	PackageInfo	A BugChecker; see the associated BugPattern annotation for details.
class	PackageLocation	A BugChecker; see the associated BugPattern annotation for details.
class	ParameterComment	A BugChecker; see the associated BugPattern annotation for details.
class	ParameterName	A BugChecker; see the associated BugPattern annotation for details.
final class	ParametersButNotParameterized	Flags uses of parameters in non-parameterized tests.
final class	PatternMatchingInstanceof	A BugPattern; see the summary.
class	PreconditionsCheckNotNullRepeated	Checks that Precondition.checkNotNull is not invoked with same arg twice.
class	PreconditionsInvalidPlaceholder
final class	PreferredInterfaceType	Tightens types which refer to an Iterable, Map, Multimap, etc.
class	PrimitiveArrayPassedToVarargsMethod
final class	PrimitiveAtomicReference	Discourages inadvertently using reference equality on boxed primitives in AtomicReference.
final class	PrivateConstructorForUtilityClass
class	PrivateSecurityContractProtoAccess	Check for disallowed access to private_do_not_access_or_else proto fields.
class	ProtectedMembersInFinalClass	Flags protected members in final classes.
final class	ProtoBuilderReturnValueIgnored	Highlights cases where a proto's build method has its return value ignored.
class	ProtocolBufferOrdinal	Points out if #ordinal() is called on a Protocol Buffer Enum.
class	ProtoStringFieldReferenceEquality
final class	ProtoTruthMixedDescriptors	Checks that ProtoTruth's ignoringFields is passed field numbers from the correct proto.
class	PublicApiNamedStreamShouldReturnStream	Checks if public APIs named "stream" returns a type whose name ends with Stream.
class	RandomCast	A BugChecker; see the associated BugPattern annotation for details.
class	RandomModInteger
class	ReachabilityFenceUsage	A BugChecker; see the associated BugPattern annotation for details.
final class	RedundantOverride	Removes overrides which purely pass through to the method in the super class.
final class	RedundantSetterCall	A BugPattern; see the summary.
class	RedundantThrows	A BugChecker; see the associated BugPattern annotation for details.
class	ReferenceEquality	A BugChecker; see the associated BugPattern annotation for details.
final class	RemoveUnusedImports
class	RequiredModifiersChecker
class	RestrictedApiChecker	Check for non-allowlisted callers to RestrictedApiChecker.
class	RethrowReflectiveOperationExceptionAsLinkageError	A BugChecker; see the associated BugPattern annotation for details.
final class	ReturnAtTheEndOfVoidFunction	A BugChecker; see the associated BugPattern annotation for details.
class	ReturnsNullCollection	Flags methods with collection return types which return null in some cases but don't annotate the method as @Nullable.
class	ReturnValueIgnored	A checker which produces an error when a return value is accidentally discarded.
class	RobolectricShadowDirectlyOn	A BugChecker; see the summary.
final class	RxReturnValueIgnored	A BugChecker; see the associated BugPattern for details.
final class	SameNameButDifferent	Looks for types being shadowed by other types in a way that may be confusing.
final class	SelfAlwaysReturnsThis	A BugChecker; see the associated BugPattern annotation for details.
final class	SelfAssertion	A BugPattern; see the summary.
class	SelfAssignment	TODO(eaftan): Consider cases where the parent is not a statement or there is no parent?
class	SelfComparison	Points out if an object is compared to itself.
class	SelfEquals
final class	SetUnrecognized	A BugPattern; see the summary.
class	ShortCircuitBoolean
class	ShouldHaveEvenArgs	Checks that variable argument methods have even number of arguments.
class	SizeGreaterThanOrEqualsZero	Finds instances where one uses Collection#size() >= 0 or T[].length > 0.
final class	StatementSwitchToExpressionSwitch	Checks for statement switches that can be expressed as an equivalent expression switch.
final class	StaticAssignmentInConstructor	Checks for static fields being assigned within constructors.
final class	StaticAssignmentOfThrowable	Checks for static fields being assigned with Throwable.
final class	StaticMockMember	A BugChecker; see the associated BugPattern annotation for details.
class	StaticQualifiedUsingExpression
class	StreamResourceLeak	A BugChecker; see the associated BugPattern annotation for details.
final class	StreamToIterable	Discourage stream::iterator to create Iterables.
class	StreamToString	A BugChecker; see the associated BugPattern annotation for details.
class	StringBuilderInitWithChar
final class	StringCaseLocaleUsage	A BugChecker that flags calls to String.toLowerCase() and String.toUpperCase(), as these methods implicitly rely on the environment's default locale.
class	StringCharset	A BugChecker; see the associated BugPattern annotation for details.
final class	StringFormatWithLiteral	A BugChecker; see the associated BugPattern annotation for details.
class	StringSplitter	A BugChecker; see the associated BugPattern annotation for details.
final class	StronglyTypeByteString	Flags fields which would be better expressed as ByteStrings rather than primitive byte arrays.
final class	SubstringOfZero	Check for calls to String's foo.substring(0).
class	SunApi	A BugChecker; see the associated BugPattern annotation for details.
class	SuperCallToObjectMethod	A BugChecker; see the associated BugPattern annotation for details.
class	SuppressWarningsDeprecated	Find uses of SuppressWarnings with "deprecated".
final class	SuppressWarningsWithoutExplanation	Finds occurrences of @SuppressWarnings where there is definitely no explanation for why it is safe.
class	SwigMemoryLeak
class	SwitchDefault	A BugChecker; see the associated BugPattern annotation for details.
class	SymbolToString	Flags javax.lang.model.element.Element#toString usage in BugCheckers.
class	SystemConsoleNull	A BugChecker; see the associated BugPattern annotation for details.
class	SystemExitOutsideMain	Check for calls to System.exit() outside of a main method.
class	SystemOut	A BugChecker; see the associated BugPattern annotation for details.
class	TestExceptionChecker	A BugChecker; see the associated BugPattern annotation for details.
final class	TestParametersNotInitialized	Flags uses of parameters in non-parameterized tests.
final class	TheoryButNoTheories	Flags uses of @Theory (and others) in non-Theories-run tests.
class	ThreadJoinLoop
class	ThreadLocalUsage	A BugChecker; see the associated BugPattern annotation for details.
class	ThreeLetterTimeZoneID
class	ThrowIfUncheckedKnownChecked	A BugPattern; see the summary.
class	ThrowIfUncheckedKnownUnchecked	A BugPattern; see the summary.
class	ThrowNull	A BugChecker; see the associated BugPattern annotation for details.
final class	ThrowSpecificExceptions	Bugpattern to discourage throwing base exception classes.
class	ThrowsUncheckedException	Suggests to remove the unchecked throws clause.
class	TooManyParameters	A BugChecker; see the associated BugPattern annotation for details.
class	ToStringReturnsNull	ToString should not return null.
class	TraditionalSwitchExpression	A BugChecker; see the associated BugPattern annotation for details.
class	TransientMisuse	Warns against use of both static and transient modifiers on field declarations.
class	TreeToString	Flags com.sun.source.tree.Tree#toString usage in BugCheckers.
final class	TruthAssertExpected	Detects usages of Truth assertions with the expected and actual values reversed.
class	TruthConstantAsserts	Points out if Truth Library assert is called on a constant.
final class	TruthContainsExactlyElementsInUsage	A BugChecker; see the associated BugPattern annotation for details.
final class	TruthGetOrDefault	Flags ambiguous usages of Map#getOrDefault within Truth#assertThat.
class	TryFailRefactoring	A BugChecker; see the associated BugPattern annotation for details.
class	TryFailThrowable	A bug checker for the following code pattern:
class	TryWithResourcesVariable	A BugChecker; see the associated BugPattern annotation for details.
class	TypeEqualsChecker	Flags com.sun.tools.javac.code.Type#equals usage.
class	TypeNameShadowing	Warns when a type parameter shadows another type name in scope.
class	TypeParameterNaming	Enforces type parameters match the google style guide.
class	TypeParameterQualifier	A BugChecker; see the associated BugPattern annotation for details.
class	TypeParameterShadowing
class	TypeParameterUnusedInFormals
class	TypeToString	Flags javax.lang.model.type.TypeMirror#toString usage in BugCheckers.
final class	UndefinedEquals	Flags types which do not have well-defined equals behavior.
class	UngroupedOverloads
final class	UnicodeDirectionalityCharacters	Bans, without the possibility of suppression, the use of direction-changing Unicode escapes.
final class	UnicodeEscape	Replaces printable ASCII unicode escapes with the literal version.
final class	UnicodeInCode	Bans using non-ASCII Unicode characters outside string literals and comments.
final class	UnnecessarilyFullyQualified	Flags uses of fully qualified names which are not ambiguous if imported.
final class	UnnecessarilyVisible	Suggests restricting the visibility of methods which should only be called by a framework.
class	UnnecessaryAnonymousClass	A BugChecker; see the associated BugPattern annotation for details.
final class	UnnecessaryAssignment	Discourage manual initialization or assignment to fields annotated with framework annotations.
final class	UnnecessaryAsync	A BugPattern; see the summary.
class	UnnecessaryBoxedAssignment	Finds and fixes unnecessarily boxed return expressions.
class	UnnecessaryBoxedVariable	Finds and fixes unnecessarily boxed variables.
class	UnnecessaryBreakInSwitch	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessaryDefaultInEnumSwitch	A BugChecker; see the associated BugPattern annotation for details.
final class	UnnecessaryFinal	Removes final from non-field variables.
class	UnnecessaryLambda	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessaryLongToIntConversion	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessaryMethodInvocationMatcher	Matchers.methodInvocation(Matcher) is not exactly deprecated, but it is legacy, and in particular is not needed when the argument is a MethodMatcher, since MethodMatcher already does the unwrapping that methodInvocation does.
final class	UnnecessaryMethodReference	Matches unnecessary uses of method references.
final class	UnnecessaryOptionalGet	A refactoring to replace Optional.get() with lambda arg in expressions passed as arg to member functions of Optionals.
class	UnnecessaryParentheses	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessarySetDefault	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessaryStaticImport	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessaryStringBuilder	A BugChecker; see the associated BugPattern annotation for details.
final class	UnnecessaryTestMethodPrefix	See the summary.
class	UnnecessaryTypeArgument	A BugChecker; see the associated BugPattern annotation for details.
class	UnsafeFinalization	A BugChecker; see the associated BugPattern annotation for details.
final class	UnsafeLocaleUsage	Flags unsafe usages of the Locale constructor and class methods.
class	UnsafeReflectiveConstructionCast	Checks unsafe instance creation via reflection.
class	UnsynchronizedOverridesSynchronized	A BugChecker; see the associated BugPattern annotation for details.
class	UnusedAnonymousClass	A BugChecker; see the associated BugPattern annotation for details.
class	UnusedCollectionModifiedInPlace
final class	UnusedException	Bugpattern for catch blocks which catch an exception but throw another one without wrapping the original.
final class	UnusedLabel	A BugPattern; see the summary.
final class	UnusedMethod	Bugpattern to detect unused declarations.
final class	UnusedNestedClass	Bugpattern to detect unused nested classes.
final class	UnusedTypeParameter	A BugPattern; see the summary.
final class	UnusedVariable	Bugpattern to detect unused declarations.
class	URLEqualsHashCode	Points out on creation of Set and HashMap of type java.net.URL.
class	UseCorrectAssertInTests
class	UseEnumSwitch	A BugChecker; see the associated BugPattern annotation for details.
class	VarChecker	A BugChecker; see the associated BugPattern annotation for details.
class	VariableNameSameAsType	Check for variables and types with the same name
final class	Varifier	Converts some local variables to use var.
class	VarTypeName	A BugChecker; see the associated BugPattern annotation for details.
final class	VoidUsed	A BugPattern; see the summary.
class	WaitNotInLoop
class	WildcardImport	A BugChecker; see the associated BugPattern annotation for details.
class	WithSignatureDiscouraged	MethodMatchers.MethodClassMatcher.withSignature(String) is discouraged: most usages should use .named and/or .withParameters instead.
final class	WrongOneof	Matches always-default expressions in oneof switches.
class	XorPower	A BugChecker; see the associated BugPattern annotation for details.
final class	YodaCondition	See the summary.

Methods in com.google.errorprone.bugpatterns with parameters of type BugChecker

Modifier and Type	Method	Description
static StronglyType.Builder	StronglyType.forCheck(BugChecker bugChecker)

Uses of BugChecker in com.google.errorprone.bugpatterns.android

Subclasses of BugChecker in com.google.errorprone.bugpatterns.android

Modifier and Type	Class	Description
class	BinderIdentityRestoredDangerously
class	BundleDeserializationCast
class	FragmentInjection
class	FragmentNotInstantiable
class	HardCodedSdCardPath
class	IsLoggableTagLength
class	MislabeledAndroidString	Replacement of misleading android.R.string constants with more intuitive ones.
class	ParcelableCreator	BugPattern to detect classes which implement android.os.Parcelable but don't have public static CREATOR.
final class	RectIntersectReturnValueIgnored
class	StaticOrDefaultInterfaceMethod
class	WakelockReleasedDangerously

Uses of BugChecker in com.google.errorprone.bugpatterns.apidiff

Subclasses of BugChecker in com.google.errorprone.bugpatterns.apidiff

Modifier and Type	Class	Description
class	AndroidJdkLibsChecker	Checks for uses of classes, fields, or methods that are not compatible with legacy Android devices.
class	ApiDiffChecker	A base Error Prone check implementation to enforce compliance with a given API diff.
class	Java7ApiChecker	Checks for uses of classes, fields, or methods that are not compatible with JDK 7
class	Java8ApiChecker	Checks for uses of classes, fields, or methods that are not compatible with JDK 8

Uses of BugChecker in com.google.errorprone.bugpatterns.argumentselectiondefects

Subclasses of BugChecker in com.google.errorprone.bugpatterns.argumentselectiondefects

Modifier and Type	Class	Description
class	ArgumentSelectionDefectChecker	Checks the lexical distance between method parameter names and the argument names at call sites.
final class	AssertEqualsArgumentOrderChecker	Checker to make sure that assertEquals-like methods are called with the arguments expected and actual the right way round.
final class	AutoValueConstructorOrderChecker	Checker to make sure that constructors for AutoValue types are invoked with arguments in the correct order.

Uses of BugChecker in com.google.errorprone.bugpatterns.checkreturnvalue

Subclasses of BugChecker in com.google.errorprone.bugpatterns.checkreturnvalue

Modifier and Type	Class	Description
class	BuilderReturnThis	Discourages builder instance methods that do not return 'this'.
final class	CanIgnoreReturnValueSuggester	Checker that recommends annotating a method with @CanIgnoreReturnValue if the method returns this, returns an effectively final input param, or if it looks like a builder method (that is likely to return this).
final class	NoCanIgnoreReturnValueOnClasses	Checker that "pushes" the @CanIgnoreReturnValue annotation down from classes to methods.
final class	UnnecessarilyUsedValue	Checker that warns when capturing the result of an ignorable API into an unused variable.
final class	UsingJsr305CheckReturnValue	Checker that recommends using ErrorProne's version of @CheckReturnValue over the version in JSR305 (which is defunct).

Uses of BugChecker in com.google.errorprone.bugpatterns.collectionincompatibletype

Subclasses of BugChecker in com.google.errorprone.bugpatterns.collectionincompatibletype

Modifier and Type	Class	Description
class	CollectionIncompatibleType	Checker for calling Object-accepting methods with types that don't match the type arguments of their container types.
final class	CollectionUndefinedEquality	Highlights use of Collection#contains (and others) with types that do not have well-defined equals.
class	CompatibleWithMisuse
class	IncompatibleArgumentType
final class	JUnitIncompatibleType	A BugChecker; see the associated BugPattern annotation for details.
class	TruthIncompatibleType	A BugChecker; see the associated BugPattern annotation for details.

Uses of BugChecker in com.google.errorprone.bugpatterns.flogger

Subclasses of BugChecker in com.google.errorprone.bugpatterns.flogger

Modifier and Type	Class	Description
class	FloggerArgumentToString	A BugChecker; see the associated BugPattern annotation for details.
class	FloggerFormatString
class	FloggerLogString	Detects invocations of LoggingApi.log(String) for which the argument is not a compile-time constant and provides suggested alternatives.
final class	FloggerLogVarargs
final class	FloggerLogWithCause	Flags cases where there is an exception available that could be set as the cause in a log message.
class	FloggerMessageFormat
class	FloggerRedundantIsEnabled
final class	FloggerRequiredModifiers	Ensures that class-level FluentLogger objects are private static final.
final class	FloggerSplitLogStatement	Bugpattern to prevent splitting flogger log invocations into multiple statements.
class	FloggerStringConcatenation	A BugChecker; see the associated BugPattern annotation for details.
class	FloggerWithCause	Flogger's withCause(Throwable) method checks
class	FloggerWithoutCause	Detects Flogger log statements that pass Exceptions to the log method instead of using withCause.

Uses of BugChecker in com.google.errorprone.bugpatterns.formatstring

Subclasses of BugChecker in com.google.errorprone.bugpatterns.formatstring

Modifier and Type	Class	Description
class	FormatString	A BugChecker; see the associated BugPattern annotation for details.
final class	FormatStringAnnotationChecker	BugChecker to assert validity of methods calls with FormatString annotations.
class	InlineFormatString	A BugChecker; see the associated BugPattern annotation for details.

Uses of BugChecker in com.google.errorprone.bugpatterns.inject

Subclasses of BugChecker in com.google.errorprone.bugpatterns.inject

Modifier and Type	Class	Description
class	AssistedInjectAndInjectOnConstructors
class	AssistedInjectAndInjectOnSameConstructor
class	AutoFactoryAtInject
class	CloseableProvides
class	InjectedConstructorAnnotations	A checker for injected constructors with @Inject(optional=true) or binding annotations.
class	InjectOnConstructorOfAbstractClass
class	InjectOnMemberAndConstructor	Checks if class constructor and members are both annotated as @Inject.
class	InvalidTargetingOnScopingAnnotation
class	JavaxInjectOnAbstractMethod
class	JavaxInjectOnFinalField
class	MisplacedScopeAnnotations	Bug checker for when a scope annotation is used at injection site, which does not have any effect on the injected values.
class	MissingRuntimeRetention
class	MoreThanOneInjectableConstructor	Matches classes that have two or more constructors annotated with @Inject.
class	MoreThanOneQualifier
class	MoreThanOneScopeAnnotationOnClass	This checker matches if a class has more than one annotation that is a scope annotation(that is, the annotation is either annotated with Guice's @ScopeAnnotation or Javax's @Scope).
class	OverlappingQualifierAndScopeAnnotation
class	QualifierOrScopeOnInjectMethod
class	QualifierWithTypeUse
class	ScopeAnnotationOnInterfaceOrAbstractClass

Uses of BugChecker in com.google.errorprone.bugpatterns.inject.dagger

Subclasses of BugChecker in com.google.errorprone.bugpatterns.inject.dagger

Modifier and Type	Class	Description
final class	AndroidInjectionBeforeSuper
final class	EmptySetMultibindingContributions
class	PrivateConstructorForNoninstantiableModule
class	ProvidesNull	Bug checker for null-returning methods annotated with @Provides but not @Nullable.
final class	RefersToDaggerCodegen	Checks that the only code that refers to Dagger generated code is other Dagger generated code.
final class	ScopeOnModule	Migrate users who use JSR 330 scopes on Dagger modules.
class	UseBinds

Uses of BugChecker in com.google.errorprone.bugpatterns.inject.guice

Subclasses of BugChecker in com.google.errorprone.bugpatterns.inject.guice

Modifier and Type	Class	Description
class	AssistedInjectScoping	This checker matches iff *both* of the following conditions are true: 1) The class is assisted: a) If there is a constructor that is annotated with @Inject and that constructor has at least one parameter that is annotated with @Assisted.
class	AssistedParameters
class	BindingToUnqualifiedCommonType
class	InjectOnFinalField
class	OverridesGuiceInjectableMethod	This checker matches methods that 1) are not themselves annotated with @Inject (neither javax.inject.Inject nor com.google.inject.Inject) 2) descend from a method that is annotated with @com.google.inject.Inject
class	OverridesJavaxInjectableMethod	This checker matches methods that 1) are not themselves annotated with @Inject 2) descend from a method that is annotated with @javax.inject.Inject 3) do not descent from a method that is annotated with @com.google.inject.Inject
class	ProvidesMethodOutsideOfModule

Uses of BugChecker in com.google.errorprone.bugpatterns.inlineme

Subclasses of BugChecker in com.google.errorprone.bugpatterns.inlineme

Modifier and Type	Class	Description
final class	Inliner	Checker that performs the inlining at call-sites (where the invoked APIs are annotated as @InlineMe).
final class	Suggester	Checker that recommends using @InlineMe on single-statement deprecated APIs.
final class	Validator	Checker that ensures the @InlineMe annotation is used correctly.

Uses of BugChecker in com.google.errorprone.bugpatterns.javadoc

Subclasses of BugChecker in com.google.errorprone.bugpatterns.javadoc

Modifier and Type	Class	Description
final class	AlmostJavadoc	Flags comments which appear to be intended to be Javadoc, but are not started with an extra *.
final class	EmptyBlockTag	Matches block tags (@param, @return, @throws, @deprecated) with an empty description.
final class	EscapedEntity	Finds unescaped entities in Javadocs.
final class	InheritDoc	Matches invalid usage of @inheritDoc.
final class	InvalidBlockTag	Matches invalid Javadoc tags, and tries to suggest fixes.
final class	InvalidInlineTag	Matches invalid Javadoc tags, and tries to suggest fixes.
final class	InvalidLink	Finds some common errors in @link tags.
final class	InvalidParam	Matches incorrect Javadoc @param tags.
final class	InvalidThrows	Matches errors in Javadoc @throws tags.
final class	InvalidThrowsLink	Matches misuse of link tags within throws tags.
final class	MalformedInlineTag	Finds malformed inline tags where @{tag is used instead of {@tag.
final class	MissingSummary	Matches Javadocs which are missing a required summary line.
final class	NotJavadoc	A BugPattern; see the summary.
final class	ReturnFromVoid	Finds common Javadoc errors, and tries to suggest useful fixes.
final class	UnescapedEntity	Finds unescaped entities in Javadocs.
final class	UnrecognisedJavadocTag	Flags tags which haven't been recognised by the Javadoc parser.
final class	UrlInSee	Discourages using URLs in @see tags.

Uses of BugChecker in com.google.errorprone.bugpatterns.nullness

Subclasses of BugChecker in com.google.errorprone.bugpatterns.nullness

Modifier and Type	Class	Description
final class	DereferenceWithNullBranch	A BugChecker; see the associated BugPattern annotation for details.
class	EqualsBrokenForNull	BugChecker adds a null check to equals() method implementations which don't satisfy the null contract of Object.equals(java.lang.Object) i.e.
class	EqualsMissingNullable	A BugChecker; see the associated BugPattern annotation for details.
final class	ExtendsObject	A bugpattern: see the summary.
class	FieldMissingNullable	A BugChecker; see the associated BugPattern annotation for details.
class	MultipleNullnessAnnotations	A BugChecker; see the associated BugPattern annotation for details.
class	NullablePrimitive
class	NullablePrimitiveArray	A BugChecker; see the associated BugPattern annotation for details.
class	NullableTypeParameter	A BugChecker; see the associated BugPattern annotation for details.
class	NullableWildcard	A BugChecker; see the associated BugPattern annotation for details.
final class	NullArgumentForNonNullParameter	A BugChecker; see the associated BugPattern annotation for details.
final class	ParameterMissingNullable	A BugChecker; see the associated BugPattern annotation for details.
class	ReturnMissingNullable	A BugChecker; see the associated BugPattern annotation for details.
class	UnnecessaryCheckNotNull	Checks for unnecessarily performing null checks on expressions which can't be null.
class	UnsafeWildcard	Check to detect unsafe upcasts of null values to wildcard types.
class	VoidMissingNullable	A BugChecker; see the associated BugPattern annotation for details.

Uses of BugChecker in com.google.errorprone.bugpatterns.overloading

Subclasses of BugChecker in com.google.errorprone.bugpatterns.overloading

Modifier and Type	Class	Description
final class	InconsistentOverloads	A BugChecker that detects inconsistently overloaded methods in Java classes.

Uses of BugChecker in com.google.errorprone.bugpatterns.threadsafety

Subclasses of BugChecker in com.google.errorprone.bugpatterns.threadsafety

Modifier and Type	Class	Description
class	DoubleCheckedLocking	A BugChecker; see the associated BugPattern annotation for details.
class	GuardedByChecker	A BugChecker; see the associated BugPattern annotation for details.
class	ImmutableAnnotationChecker	A BugChecker; see the associated BugPattern annotation for details.
class	ImmutableChecker	A BugChecker; see the associated BugPattern annotation for details.
class	ImmutableEnumChecker	A BugChecker; see the associated BugPattern annotation for details.
class	ImmutableRefactoring	A BugChecker; see the associated BugPattern annotation for details.
class	StaticGuardedByInstance	A BugChecker; see the associated BugPattern annotation for details.
class	SynchronizeOnNonFinalField	A BugChecker; see the associated BugPattern annotation for details.
class	ThreadPriorityCheck	Bug checker to detect usage of Thread.stop(), Thread.yield(), and changing thread priorities.
class	ThreadSafeChecker	A BugChecker; see the associated BugPattern annotation for details.

Constructors in com.google.errorprone.bugpatterns.threadsafety with parameters of type BugChecker

Modifier	Constructor	Description
	ThreadSafeAnalysis(BugChecker bugChecker, VisitorState state, WellKnownThreadSafety wellKnownThreadSafety)

Uses of BugChecker in com.google.errorprone.bugpatterns.time

Subclasses of BugChecker in com.google.errorprone.bugpatterns.time

Modifier and Type	Class	Description
final class	DateChecker	Warns against suspect looking calls to Date APIs.
final class	DurationFrom	Bans calls to Duration.from(temporalAmount) where temporalAmount is a Period.
final class	DurationGetTemporalUnit	Bans calls to Duration.get(temporalUnit) where temporalUnit is not SECONDS or NANOS.
final class	DurationTemporalUnit	Bans calls to Duration APIs where the TemporalUnit is not ChronoUnit.DAYS or it has an estimated duration (which is guaranteed to throw an DateTimeException).
final class	DurationToLongTimeUnit	Reports an error when a Duration or Instant is incorrectly decomposed in order to call an API which accepts a <long, TimeUnit> pair.
final class	FromTemporalAccessor	Bans calls to javaTimeType.from(temporalAmount) where the call is guaranteed to either: throw a DateTimeException at runtime (e.g., LocalDate.from(month)) return the same parameter (e.g., Instant.from(instant))
final class	InstantTemporalUnit	Bans calls to Instant APIs where the TemporalUnit is not one of: NANOS, MICROS, MILLIS, SECONDS, MINUTES, HOURS, HALF_DAYS, or DAYS.
final class	InvalidJavaTimeConstant	This checker errors on calls to java.time methods using values that are guaranteed to throw a DateTimeException.
final class	JavaDurationGetSecondsGetNano	This checker warns about calls to duration.getNano() without a corresponding "nearby" call to duration.getSeconds().
final class	JavaDurationGetSecondsToToSeconds	Error prone checking for Duration.getSeconds() without Duration.getNano().
final class	JavaDurationWithNanos	Check for calls to duration.withNanos(int).
final class	JavaDurationWithSeconds	Check for calls to duration.withSeconds(long).
final class	JavaInstantGetSecondsGetNano	This checker warns about calls to instant.getNano() without a corresponding "nearby" call to instant.getEpochSecond().
final class	JavaLocalDateTimeGetNano	This checker warns about calls to LocalDateTime.getNano() without a corresponding "nearby" call to LocalDateTime.getSecond().
final class	JavaLocalTimeGetNano	This checker warns about calls to LocalTime.getNano() without a corresponding "nearby" call to LocalTime.getSecond().
final class	JavaPeriodGetDays	This checker warns about calls to period.getDays() without a corresponding "nearby" call to period.getYears(), period.getMonths(), or period.getTotalMonths().
final class	JavaTimeDefaultTimeZone	Check for calls to java.time APIs that silently use the default system time-zone.
final class	JodaConstructors	Check for calls to bad JodaTime constructors.
final class	JodaDateTimeConstants	Checks for usages of dangerous DateTimeConstants constants.
final class	JodaDurationWithMillis	Check for calls to duration.withMillis(long).
final class	JodaInstantWithMillis	Check for calls to instant.withMillis(long).
final class	JodaNewPeriod	Match possibly incorrect use of Period to obtain a number of (e.g.) days between two dates.
final class	JodaPlusMinusLong	Check for calls to JodaTime's type.plus(long) and type.minus(long) where <type> = {Duration,Instant,DateTime,DateMidnight}.
final class	JodaTimeConverterManager	Ban usage of Joda's ConverterManager.
final class	JodaToSelf	Check for calls to Joda-Time's foo.toFoo() and new Foo(foo).
final class	JodaWithDurationAddedLong	Check for calls to JodaTime's type.withDurationAdded(long, int) where <type> = {Duration,Instant,DateTime}.
final class	LocalDateTemporalAmount	Bans calls to LocalDate.plus(TemporalAmount) and LocalDate.minus(TemporalAmount) where the TemporalAmount is a non-zero Duration.
final class	PeriodFrom	Bans calls to Period.from(temporalAmount) where temporalAmount is a Duration.
final class	PeriodGetTemporalUnit	Bans calls to Period.get(temporalUnit) where temporalUnit is not YEARS, MONTHS, or DAYS.
final class	PeriodTimeMath	Bans calls to Period#plus/minus(TemporalAmount) where the argument is a Duration.
final class	PreferJavaTimeOverload	This check suggests the use of java.time-based APIs, when available.
final class	ProtoDurationGetSecondsGetNano	This checker warns about accessing the underlying nanosecond-adjustment field of a duration without a "nearby" access of the underlying seconds field.
final class	ProtoTimestampGetSecondsGetNano	This checker warns about accessing the underlying nanosecond-adjustment field of a protobuf timestamp without a "nearby" access of the underlying seconds field.
final class	StronglyTypeTime	Flags fields which would be better expressed as time types rather than primitive integers.
final class	TemporalAccessorGetChronoField	Bans calls to TemporalAccessor.get(ChronoField) where the implementation is guaranteed to throw an UnsupportedTemporalTypeException.
final class	TimeUnitConversionChecker	Check for problematic or suspicious TimeUnit conversion calls.
final class	TimeUnitMismatch	Checker that detects likely time-unit mismatches by looking at identifier names.
final class	ZoneIdOfZ	This checker bans calls to ZoneId.of("Z") in favor of ZoneOffset.UTC.

Uses of BugChecker in com.google.errorprone.scanner

Methods in com.google.errorprone.scanner that return types with arguments of type BugChecker

Modifier and Type	Method	Description
com.google.common.collect.ImmutableSet<BugChecker>	ErrorProneScanner.getBugCheckers()

Method parameters in com.google.errorprone.scanner with type arguments of type BugChecker

Modifier and Type	Method	Description
static ScannerSupplier	ScannerSupplier.fromBugCheckerClasses(Iterable<Class<? extends BugChecker>> checkers)	Returns a ScannerSupplier with a specific list of BugChecker classes.
static com.google.common.collect.ImmutableSet<BugCheckerInfo>	BuiltInCheckerSuppliers.getSuppliers(Iterable<Class<? extends BugChecker>> checkers)

Constructors in com.google.errorprone.scanner with parameters of type BugChecker

Modifier	Constructor	Description
	ErrorProneScanner(BugChecker... checkers)	Create an error-prone scanner for the given checkers.

Constructor parameters in com.google.errorprone.scanner with type arguments of type BugChecker

Modifier	Constructor	Description
	ErrorProneScanner(Iterable<BugChecker> checkers)	Create an error-prone scanner for a non-hardcoded set of checkers.
	ErrorProneScanner(Iterable<BugChecker> checkers, Map<String,BugPattern.SeverityLevel> severities)	Create an error-prone scanner for a non-hardcoded set of checkers.