Deprecated API

Contents

• Terminally Deprecated
• Interfaces
• Classes
• Exceptions
• Fields
• Methods
• Constructors

Terminally Deprecated Elements

Element	Description
org.springframework.aot.hint.support.FilePatternResourceHintsRegistrar(List<String>, List<String>, List<String>)	as of 6.0.12 in favor of the builder
org.springframework.aot.hint.support.FilePatternResourceHintsRegistrar.registerHints(ResourceHints, ClassLoader)
org.springframework.util.Base64Utils	as of Spring Framework 6.0.5 in favor of Base64; scheduled for removal in 6.2
org.springframework.util.MimeType.SpecificityComparator	As of 6.0, with no direct replacement
org.springframework.util.MimeTypeUtils.SPECIFICITY_COMPARATOR	As of 6.0, with no direct replacement

Deprecated Interfaces

Interface	Description
org.springframework.core.task.AsyncListenableTaskExecutor	as of 6.0, in favor of AsyncTaskExecutor.submitCompletable(Runnable) and AsyncTaskExecutor.submitCompletable(Callable)
org.springframework.util.concurrent.FailureCallback	as of 6.0, in favor of CompletableFuture.whenComplete(BiConsumer)
org.springframework.util.concurrent.ListenableFuture	as of 6.0, in favor of CompletableFuture
org.springframework.util.concurrent.ListenableFutureCallback	as of 6.0, in favor of CompletableFuture.whenComplete(BiConsumer)
org.springframework.util.concurrent.SuccessCallback	as of 6.0, in favor of CompletableFuture.whenComplete(BiConsumer)

Deprecated Classes

Class	Description
org.springframework.cglib.core.TinyBitSet
org.springframework.core.Constants	since 6.1 with no replacement; use an enum, map, or similar custom solution instead
org.springframework.core.env.JOptCommandLinePropertySource	since 6.1 with no plans for a replacement
org.springframework.util.Base64Utils	as of Spring Framework 6.0.5 in favor of Base64; scheduled for removal in 6.2
org.springframework.util.comparator.ComparableComparator	as of 6.1 in favor of Comparator.naturalOrder()
org.springframework.util.comparator.NullSafeComparator	as of 6.1 in favor of Comparator.nullsLast(java.util.Comparator<? super T>) and Comparator.nullsFirst(java.util.Comparator<? super T>)
org.springframework.util.concurrent.CompletableToListenableFutureAdapter	as of 6.0, with no concrete replacement
org.springframework.util.concurrent.FutureAdapter	as of 6.0, with no concrete replacement
org.springframework.util.concurrent.ListenableFutureAdapter	as of 6.0, in favor of CompletableFuture
org.springframework.util.concurrent.ListenableFutureCallbackRegistry	as of 6.0, with no concrete replacement
org.springframework.util.concurrent.ListenableFutureTask	as of 6.0, with no concrete replacement
org.springframework.util.concurrent.MonoToListenableFutureAdapter	as of 6.0, in favor of Mono.toFuture()
org.springframework.util.concurrent.SettableListenableFuture	as of 6.0, in favor of CompletableFuture
org.springframework.util.MimeType.SpecificityComparator	As of 6.0, with no direct replacement

Deprecated Exceptions

Exceptions	Description
org.springframework.core.task.TaskTimeoutException	as of 5.3.16 since the common executors do not support start timeouts

Deprecated Fields

Field	Description
org.springframework.asm.ClassReader.b	Use ClassReader.readByte(int) and the other read methods instead. This field will eventually be deleted.
org.springframework.cglib.core.KeyFactory.OBJECT_BY_CLASS	this customizer might result in unexpected class leak since key object still holds a strong reference to the Object and class. It is recommended to have pre-processing method that would strip Objects and represent Classes as Strings
org.springframework.core.annotation.AnnotationFilter.NONE	as of 5.2.6 since the MergedAnnotations model always ignores lang annotations according to the AnnotationFilter.PLAIN filter (for efficiency reasons)
org.springframework.core.task.AsyncTaskExecutor.TIMEOUT_IMMEDIATE	as of 5.3.16 along with AsyncTaskExecutor.execute(Runnable, long)
org.springframework.core.task.AsyncTaskExecutor.TIMEOUT_INDEFINITE	as of 5.3.16 along with AsyncTaskExecutor.execute(Runnable, long)
org.springframework.util.MimeTypeUtils.SPECIFICITY_COMPARATOR	As of 6.0, with no direct replacement

Deprecated Methods

Method	Description
org.springframework.aot.hint.support.FilePatternResourceHintsRegistrar.registerHints(ResourceHints, ClassLoader)
org.springframework.asm.ClassWriter.newHandle(int, String, String, String)	this method is superseded by ClassWriter.newHandle(int, String, String, String, boolean).
org.springframework.asm.MethodVisitor.visitMethodInsn(int, String, String, String)	use MethodVisitor.visitMethodInsn(int, String, String, String, boolean) instead.
org.springframework.cglib.core.CodeEmitter.invoke_static(Type, Signature)
org.springframework.cglib.core.EmitUtils.append_string(CodeEmitter, Type, EmitUtils.ArrayDelimiters, Customizer)	use EmitUtils.append_string(CodeEmitter, Type, ArrayDelimiters, CustomizerRegistry) instead
org.springframework.cglib.core.EmitUtils.hash_code(CodeEmitter, Type, int, Customizer)	use EmitUtils.hash_code(CodeEmitter, Type, int, CustomizerRegistry) instead
org.springframework.cglib.core.EmitUtils.not_equals(CodeEmitter, Type, Label, Customizer)	use EmitUtils.not_equals(CodeEmitter, Type, Label, CustomizerRegistry) instead
org.springframework.cglib.core.internal.CustomizerRegistry.singleton(Customizer)	Only to keep backward compatibility.
org.springframework.cglib.core.KeyFactory.Generator.setCustomizer(Customizer)	Use KeyFactory.Generator.addCustomizer(KeyFactoryCustomizer) instead.
org.springframework.core.annotation.AnnotationUtils.findAnnotationDeclaringClass(Class<? extends Annotation>, Class<?>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.findAnnotationDeclaringClassForTypes(List<Class<? extends Annotation>>, Class<?>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.getAnnotations(AnnotatedElement)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.getAnnotations(Method)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.getDeclaredRepeatableAnnotations(AnnotatedElement, Class<A>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.getDeclaredRepeatableAnnotations(AnnotatedElement, Class<A>, Class<? extends Annotation>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.getRepeatableAnnotations(AnnotatedElement, Class<A>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.getRepeatableAnnotations(AnnotatedElement, Class<A>, Class<? extends Annotation>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.isAnnotationInherited(Class<? extends Annotation>, Class<?>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.annotation.AnnotationUtils.isAnnotationMetaPresent(Class<? extends Annotation>, Class<? extends Annotation>)	as of 5.2 since it is superseded by the MergedAnnotations API
org.springframework.core.codec.AbstractDataBufferDecoder.decodeDataBuffer(DataBuffer, ResolvableType, MimeType, Map<String, Object>)	as of 5.2, please implement Decoder.decode(DataBuffer, ResolvableType, MimeType, Map) instead
org.springframework.core.env.AbstractEnvironment.acceptsProfiles(String...)
org.springframework.core.env.Environment.acceptsProfiles(String...)	as of 5.1 in favor of Environment.acceptsProfiles(Profiles) or Environment.matchesProfiles(String...)
org.springframework.core.GenericTypeResolver.resolveParameterType(MethodParameter, Class<?>)	since 5.2 in favor of methodParameter.withContainingClass(implementationClass).getParameterType()
org.springframework.core.io.buffer.DataBuffer.asByteBuffer()	as of 6.0, in favor of DataBuffer.toByteBuffer(ByteBuffer), DataBuffer.readableByteBuffers(), or DataBuffer.writableByteBuffers().
org.springframework.core.io.buffer.DataBuffer.asByteBuffer(int, int)	as of 6.0, in favor of DataBuffer.toByteBuffer(int, ByteBuffer, int, int), DataBuffer.readableByteBuffers(), or DataBuffer.writableByteBuffers().
org.springframework.core.io.buffer.DataBuffer.capacity(int)	as of 6.0, in favor of DataBuffer.ensureWritable(int), which has different semantics
org.springframework.core.io.buffer.DataBuffer.ensureCapacity(int)	since 6.0, in favor of DataBuffer.ensureWritable(int)
org.springframework.core.io.buffer.DataBuffer.retainedSlice(int, int)	as of 6.0, in favor of DataBuffer.split(int), which has different semantics
org.springframework.core.io.buffer.DataBuffer.slice(int, int)	as of 6.0, in favor of DataBuffer.split(int), which has different semantics
org.springframework.core.io.buffer.DataBuffer.toByteBuffer()	as of 6.0.5, in favor of DataBuffer.toByteBuffer(ByteBuffer)
org.springframework.core.io.buffer.DataBuffer.toByteBuffer(int, int)	as of 6.0.5, in favor of DataBuffer.toByteBuffer(int, ByteBuffer, int, int)
org.springframework.core.io.buffer.DataBufferFactory.allocateBuffer()	as of 6.0, in favor of DataBufferFactory.allocateBuffer(int)
org.springframework.core.io.buffer.DataBufferWrapper.asByteBuffer()
org.springframework.core.io.buffer.DataBufferWrapper.asByteBuffer(int, int)
org.springframework.core.io.buffer.DataBufferWrapper.capacity(int)
org.springframework.core.io.buffer.DataBufferWrapper.ensureCapacity(int)
org.springframework.core.io.buffer.DataBufferWrapper.retainedSlice(int, int)
org.springframework.core.io.buffer.DataBufferWrapper.slice(int, int)
org.springframework.core.io.buffer.DataBufferWrapper.toByteBuffer()
org.springframework.core.io.buffer.DataBufferWrapper.toByteBuffer(int, int)
org.springframework.core.io.buffer.DefaultDataBuffer.asByteBuffer()
org.springframework.core.io.buffer.DefaultDataBuffer.asByteBuffer(int, int)
org.springframework.core.io.buffer.DefaultDataBuffer.capacity(int)
org.springframework.core.io.buffer.DefaultDataBuffer.slice(int, int)
org.springframework.core.io.buffer.DefaultDataBuffer.toByteBuffer(int, int)
org.springframework.core.io.buffer.DefaultDataBufferFactory.allocateBuffer()
org.springframework.core.io.buffer.Netty5DataBuffer.asByteBuffer()
org.springframework.core.io.buffer.Netty5DataBuffer.asByteBuffer(int, int)
org.springframework.core.io.buffer.Netty5DataBuffer.capacity(int)
org.springframework.core.io.buffer.Netty5DataBuffer.slice(int, int)
org.springframework.core.io.buffer.Netty5DataBuffer.toByteBuffer(int, int)
org.springframework.core.io.buffer.Netty5DataBufferFactory.allocateBuffer()
org.springframework.core.io.buffer.NettyDataBuffer.asByteBuffer()
org.springframework.core.io.buffer.NettyDataBuffer.asByteBuffer(int, int)
org.springframework.core.io.buffer.NettyDataBuffer.capacity(int)
org.springframework.core.io.buffer.NettyDataBuffer.retainedSlice(int, int)
org.springframework.core.io.buffer.NettyDataBuffer.slice(int, int)
org.springframework.core.io.buffer.NettyDataBuffer.toByteBuffer(int, int)
org.springframework.core.io.buffer.NettyDataBufferFactory.allocateBuffer()
org.springframework.core.io.support.SpringFactoriesLoader.loadFactoryNames(Class<?>, ClassLoader)	as of 6.0 in favor of SpringFactoriesLoader.load(Class, ArgumentResolver, FailureHandler)
org.springframework.core.MethodParameter.decreaseNestingLevel()	since 5.2 in favor of retaining the original MethodParameter and using MethodParameter.nested(Integer) if nesting is required
org.springframework.core.MethodParameter.forMethodOrConstructor(Object, int)	as of 5.0, in favor of MethodParameter.forExecutable(java.lang.reflect.Executable, int)
org.springframework.core.MethodParameter.increaseNestingLevel()	since 5.2 in favor of MethodParameter.nested(Integer)
org.springframework.core.MethodParameter.setTypeIndexForCurrentLevel(int)	since 5.2 in favor of MethodParameter.withTypeIndex(int)
org.springframework.core.NestedExceptionUtils.buildMessage(String, Throwable)	as of 6.0, in favor of custom exception messages with selective inclusion of cause messages
org.springframework.core.task.AsyncListenableTaskExecutor.submitListenable(Runnable)	in favor of AsyncTaskExecutor.submitCompletable(Runnable)
org.springframework.core.task.AsyncListenableTaskExecutor.submitListenable(Callable<T>)	in favor of AsyncTaskExecutor.submitCompletable(Callable)
org.springframework.core.task.AsyncTaskExecutor.execute(Runnable, long)	as of 5.3.16 since the common executors do not support start timeouts
org.springframework.core.task.SimpleAsyncTaskExecutor.execute(Runnable, long)
org.springframework.util.ClassUtils.getInterfaceMethodIfPossible(Method)	in favor of ClassUtils.getInterfaceMethodIfPossible(Method, Class)
org.springframework.util.ClassUtils.isCglibProxy(Object)	as of 5.2, in favor of custom (possibly narrower) checks such as for a Spring AOP proxy
org.springframework.util.ClassUtils.isCglibProxyClass(Class<?>)	as of 5.2, in favor of custom (possibly narrower) checks or simply a check for containing ClassUtils.CGLIB_CLASS_SEPARATOR
org.springframework.util.ClassUtils.isCglibProxyClassName(String)	as of 5.2, in favor of custom (possibly narrower) checks or simply a check for containing ClassUtils.CGLIB_CLASS_SEPARATOR
org.springframework.util.concurrent.ListenableFuture.addCallback(ListenableFutureCallback<? super T>)	as of 6.0, in favor of CompletableFuture.whenComplete(BiConsumer)
org.springframework.util.concurrent.ListenableFuture.addCallback(SuccessCallback<? super T>, FailureCallback)	as of 6.0, in favor of CompletableFuture.whenComplete(BiConsumer)
org.springframework.util.ConcurrentLruCache.sizeLimit()	in favor of ConcurrentLruCache.capacity() as of 6.0.
org.springframework.util.ObjectUtils.nullSafeHashCode(boolean[])	as of 6.1 in favor of Arrays.hashCode(boolean[])
org.springframework.util.ObjectUtils.nullSafeHashCode(byte[])	as of 6.1 in favor of Arrays.hashCode(byte[])
org.springframework.util.ObjectUtils.nullSafeHashCode(char[])	as of 6.1 in favor of Arrays.hashCode(char[])
org.springframework.util.ObjectUtils.nullSafeHashCode(double[])	as of 6.1 in favor of Arrays.hashCode(double[])
org.springframework.util.ObjectUtils.nullSafeHashCode(float[])	as of 6.1 in favor of Arrays.hashCode(float[])
org.springframework.util.ObjectUtils.nullSafeHashCode(int[])	as of 6.1 in favor of Arrays.hashCode(int[])
org.springframework.util.ObjectUtils.nullSafeHashCode(long[])	as of 6.1 in favor of Arrays.hashCode(long[])
org.springframework.util.ObjectUtils.nullSafeHashCode(short[])	as of 6.1 in favor of Arrays.hashCode(short[])
org.springframework.util.ObjectUtils.nullSafeHashCode(Object[])	as of 6.1 in favor of Arrays.hashCode(Object[])
org.springframework.util.SerializationUtils.deserialize(byte[])	This utility uses Java Object Serialization, which allows arbitrary code to be run and is known for being the source of many Remote Code Execution (RCE) vulnerabilities. Prefer the use of an external tool (that serializes to JSON, XML, or any other format) which is regularly checked and updated for not allowing RCE.
org.springframework.util.StopWatch.getLastTaskInfo()	as of 6.1, in favor of StopWatch.lastTaskInfo()
org.springframework.util.StopWatch.getLastTaskName()	as of 6.1, in favor of StopWatch.lastTaskInfo()
org.springframework.util.StopWatch.getLastTaskTimeMillis()	as of 6.1, in favor of StopWatch.lastTaskInfo()
org.springframework.util.StopWatch.getLastTaskTimeNanos()	as of 6.1, in favor of StopWatch.lastTaskInfo()
org.springframework.util.StreamUtils.emptyInput()	as of 6.0 in favor of InputStream.nullInputStream()
org.springframework.util.StringUtils.isEmpty(Object)	as of 5.3, in favor of StringUtils.hasLength(String) and StringUtils.hasText(String) (or ObjectUtils.isEmpty(Object))
org.springframework.util.StringUtils.trimLeadingWhitespace(String)	since 6.0, in favor of String.stripLeading()
org.springframework.util.StringUtils.trimTrailingWhitespace(String)	since 6.0, in favor of String.stripTrailing()
org.springframework.util.StringUtils.trimWhitespace(String)	since 6.0, in favor of String.strip()

Deprecated Constructors

Constructor	Description
org.springframework.aot.hint.support.FilePatternResourceHintsRegistrar(List<String>, List<String>, List<String>)	as of 6.0.12 in favor of the builder
org.springframework.asm.Handle(int, String, String, String)	this constructor has been superseded by Handle(int, String, String, String, boolean).
org.springframework.core.type.StandardAnnotationMetadata(Class<?>)	since 5.2 in favor of the factory method AnnotationMetadata.introspect(Class)
org.springframework.core.type.StandardAnnotationMetadata(Class<?>, boolean)	since 5.2 in favor of the factory method AnnotationMetadata.introspect(Class). Use MergedAnnotation.asMap from StandardAnnotationMetadata.getAnnotations() rather than AnnotatedTypeMetadata.getAnnotationAttributes(String) if nestedAnnotationsAsMap is false
org.springframework.core.type.StandardClassMetadata(Class<?>)	since 5.2 in favor of StandardAnnotationMetadata
org.springframework.core.type.StandardMethodMetadata(Method)	since 5.2 in favor of obtaining instances via AnnotationMetadata