Package Summary  Overview Summary

class:Package [CHANGED]

  • All Implemented Interfaces:
    java.lang.reflect.AnnotatedElement


    public class Package
    extends java.lang.Object
    implements java.lang.reflect.AnnotatedElement
    Package objects contain version informationRepresents metadata about the implementation and specification ofa Javarun-time package . Thisassociated with a class loader. Metadata includes annotations, versioning information is retrieved, and made available bysealing.

    Annotations for the ClassLoader instance that loadedrun-time package are read from package-info.class at the class(es). Typically, it is storedsame code source as classes in the manifest that is distributed with the classesrun-time package.

    The set of classes that make up the run-time package may implement a particular specification and if so the. The specification title, version number, and vendor strings identify that(indicating the owner/maintainer of the specification) can be provided when the Package is defined. An application can ask if the packagePackage is compatible with a particular specification version , seeby using the Package.isCompatibleWith(String) method for details.Specification version numbers use a syntax. In addition, information about the actual classes that make up the run-time package can be provided when the Package is defined. This information consists of nonnegative decimal integers separated by periods ".", for example "2.0" or "1.2.3.4.5.6.7". This allowsan extensible number toimplementation title, version, and vendor (indicating the supplier of the classes).

    A Package may be used to represent major, minor, micro, etc.explicitly defined with the ClassLoader.definePackage(String, String, String, String, String, String, String, URL) method. The caller supplies the specification and implementation titles, versions, and vendors. The version specificationcaller also indicates whether the package is sealed. If a Package is not explicitly defined for a run-time package when a class in that run-time package is defined, then a Package is describedautomatically defined by the class's defining class loader, as follows.

    A Package automatically defined for classes in a named module has the following formal grammar:

    SpecificationVersion:
    Digits RefinedVersionopt
    RefinedVersion:
    .Digits
    .Digits RefinedVersion
    Digits:
    Digit
    Digits
    Digit:
    any character for which Character.isDigit(char) returns true, e.g. 0, 1, 2,properties:
    • The name of the package is derived from the binary names of the classes. Since classes in a named module must be in a named package, the derived name is never empty.
    • .The package is sealed with the module location as the code source, if known.
    • The specification and implementation title, versiontitles, versions, and vendor strings identifyvendors are unspecified.
    • Any annotations on the package are read from package-info.class as specified above.

    A Package automatically defined for classes in an unnamed module has the following properties:

    • The name of the package is either "" (for classes in an implementation and are made available conveniently to enable accurate reportingunnamed package) or derived from the binary names of the packages involved whenclasses (for classes in a problem occursnamed package).
    • The contents all three implementation strings are vendor specificpackage is not sealed.
    • The specification and implementation version strings have notitles, versions, and vendors are unspecified.
    • Any annotations on the package are read from package-info.class as specified syntax and should onlyabove.

    A Package can be compared for equalityobtained with desired version identifiers.Within each ClassLoader instance all classes from the same java package havethe samePackage object. The static.getPackage(String) and ClassLoader.getDefinedPackage(String) methods allow. Every Package defined by a package toclass loader can be found by name orobtained with the set of allPackage.getPackages() and ClassLoader.getDefinedPackages() methods.

    Implementation Note:
    The builtin class loaders do not explicitly define Package objects for packages in named modules . Instead those packages known to the current class loader to be foundare automatically defined and have no specification and implementation versioning information.
    Since:
    1.2
    See Also:
    The JAR File Specification: Package Sealing , ClassLoader.definePackage(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.net.URL)
    See The Java™ Virtual Machine Specification :
    5.3 Run-time package
  • All Implemented Interfaces:
    java.lang.reflect.AnnotatedElement


    public class Package
    extends java.lang.Object
    implements java.lang.reflect.AnnotatedElement
    Package objects contain version information about the implementation and specification of a Java package. This versioning information is retrieved and made available by the ClassLoader instance that loaded the class(es). Typically, it is stored in the manifest that is distributed with the classes.

    The set of classes that make up the package may implement a particular specification and if so the specification title, version number, and vendor strings identify that specification. An application can ask if the package is compatible with a particular version, see the isCompatibleWith method for details.

    Specification version numbers use a syntax that consists of nonnegative decimal integers separated by periods ".", for example "2.0" or "1.2.3.4.5.6.7". This allows an extensible number to be used to represent major, minor, micro, etc. versions. The version specification is described by the following formal grammar:

    SpecificationVersion:
    Digits RefinedVersionopt
    RefinedVersion:
    .Digits
    .Digits RefinedVersion
    Digits:
    Digit
    Digits
    Digit:
    any character for which Character.isDigit(char) returns true, e.g. 0, 1, 2, ...

    The implementation title, version, and vendor strings identify an implementation and are made available conveniently to enable accurate reporting of the packages involved when a problem occurs. The contents all three implementation strings are vendor specific. The implementation version strings have no specified syntax and should only be compared for equality with desired version identifiers.

    Within each ClassLoader instance all classes from the same java package have the same Package object. The static methods allow a package to be found by name or the set of all packages known to the current class loader to be found.

    Since:
    1.2
    See Also:
    ClassLoader.definePackage(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.net.URL)
  • All Implemented Interfaces:
    java.lang.reflect.AnnotatedElement


    public class Package
    extends java.lang.Object
    implements java.lang.reflect.AnnotatedElement
    Represents metadata about a run-time package associated with a class loader. Metadata includes annotations, versioning, and sealing.

    Annotations for the run-time package are read from package-info.class at the same code source as classes in the run-time package.

    The set of classes that make up the run-time package may implement a particular specification. The specification title, version, and vendor (indicating the owner/maintainer of the specification) can be provided when the Package is defined. An application can ask if the Package is compatible with a particular specification version by using the Package.isCompatibleWith(String) method. In addition, information about the actual classes that make up the run-time package can be provided when the Package is defined. This information consists of an implementation title, version, and vendor (indicating the supplier of the classes).

    A Package may be explicitly defined with the ClassLoader.definePackage(String, String, String, String, String, String, String, URL) method. The caller supplies the specification and implementation titles, versions, and vendors. The caller also indicates whether the package is sealed. If a Package is not explicitly defined for a run-time package when a class in that run-time package is defined, then a Package is automatically defined by the class's defining class loader, as follows.

    A Package automatically defined for classes in a named module has the following properties:

    • The name of the package is derived from the binary names of the classes. Since classes in a named module must be in a named package, the derived name is never empty.
    • The package is sealed with the module location as the code source, if known.
    • The specification and implementation titles, versions, and vendors are unspecified.
    • Any annotations on the package are read from package-info.class as specified above.

    A Package automatically defined for classes in an unnamed module has the following properties:

    • The name of the package is either "" (for classes in an unnamed package) or derived from the binary names of the classes (for classes in a named package).
    • The package is not sealed.
    • The specification and implementation titles, versions, and vendors are unspecified.
    • Any annotations on the package are read from package-info.class as specified above.

    A Package can be obtained with the Package.getPackage(String) and ClassLoader.getDefinedPackage(String) methods. Every Package defined by a class loader can be obtained with the Package.getPackages() and ClassLoader.getDefinedPackages() methods.

    Implementation Note:
    The builtin class loaders do not explicitly define Package objects for packages in named modules . Instead those packages are automatically defined and have no specification and implementation versioning information.
    Since:
    1.2
    See Also:
    The JAR File Specification: Package Sealing , ClassLoader.definePackage(String, String, String, String, String, String, String, URL)
    See The Java™ Virtual Machine Specification :
    5.3 Run-time package

method:getName() [NONE]

  • getName

    public java.lang.String getName()
    Return the name of this package.
    Returns:
    The fully-qualified name of this package as defined in section 6.5.3 of The Java™ Language Specification , for example, java.lang

method:getSpecificationTitle() [NONE]

  • getSpecificationTitle

    public java.lang.String getSpecificationTitle()
    Return the title of the specification that this package implements.
    Returns:
    the specification title, null is returned if it is not known.

method:getSpecificationVersion() [CHANGED]

  • getSpecificationVersion

    public java.lang.String getSpecificationVersion()
    Returns the version number of the specification that this package implements. This version string must be a sequence of nonnegativenon-negative decimal integers separated by "."'s and may have leading zeros. When version strings are compared the most significant numbers are compared.

    Specification version numbers use a syntax that consists of non-negative decimal integers separated by periods ".", for example "2.0" or "1.2.3.4.5.6.7". This allows an extensible number to be used to represent major, minor, micro, etc. versions. The version specification is described by the following formal grammar:

    SpecificationVersion:
    Digits RefinedVersionopt
    RefinedVersion:
    .Digits
    .Digits RefinedVersion
    Digits:
    Digit
    Digits
    Digit:
    any character for which Character.isDigit(char) returns true, e.g. 0, 1, 2, ...
    Returns:
    the specification version, null is returned if it is not known.
  • getSpecificationVersion

    public java.lang.String getSpecificationVersion()
    Returns the version number of the specification that this package implements. This version string must be a sequence of nonnegative decimal integers separated by "."'s and may have leading zeros. When version strings are compared the most significant numbers are compared.
    Returns:
    the specification version, null is returned if it is not known.
  • getSpecificationVersion

    public java.lang.String getSpecificationVersion()
    Returns the version number of the specification that this package implements. This version string must be a sequence of non-negative decimal integers separated by "."'s and may have leading zeros. When version strings are compared the most significant numbers are compared.

    Specification version numbers use a syntax that consists of non-negative decimal integers separated by periods ".", for example "2.0" or "1.2.3.4.5.6.7". This allows an extensible number to be used to represent major, minor, micro, etc. versions. The version specification is described by the following formal grammar:

    SpecificationVersion:
    Digits RefinedVersionopt
    RefinedVersion:
    .Digits
    .Digits RefinedVersion
    Digits:
    Digit
    Digits
    Digit:
    any character for which Character.isDigit(char) returns true, e.g. 0, 1, 2, ...
    Returns:
    the specification version, null is returned if it is not known.

method:getSpecificationVendor() [NONE]

  • getSpecificationVendor

    public java.lang.String getSpecificationVendor()
    Return the name of the organization, vendor, or company that owns and maintains the specification of the classes that implement this package.
    Returns:
    the specification vendor, null is returned if it is not known.

method:getImplementationTitle() [NONE]

  • getImplementationTitle

    public java.lang.String getImplementationTitle()
    Return the title of this package.
    Returns:
    the title of the implementation, null is returned if it is not known.

method:getImplementationVersion() [NONE]

  • getImplementationVersion

    public java.lang.String getImplementationVersion()
    Return the version of this implementation. It consists of any string assigned by the vendor of this implementation and does not have any particular syntax specified or expected by the Java runtime. It may be compared for equality with other package version strings used for this implementation by this vendor for this package.
    Returns:
    the version of the implementation, null is returned if it is not known.

method:getImplementationVendor() [CHANGED]

  • getImplementationVendor

    public java.lang.String getImplementationVendor()
    Returns the name of the organization,vendor or companythat providedimplemented this implementationpackage, null is returned if it is not known.
    Returns:
    the vendor that implemented this package., null is returned if it is not known.
  • getImplementationVendor

    public java.lang.String getImplementationVendor()
    Returns the name of the organization, vendor or company that provided this implementation.
    Returns:
    the vendor that implemented this package..
  • getImplementationVendor

    public java.lang.String getImplementationVendor()
    Returns the vendor that implemented this package, null is returned if it is not known.
    Returns:
    the vendor that implemented this package, null is returned if it is not known.

method:isSealed() [NONE]

  • isSealed

    public boolean isSealed()
    Returns true if this package is sealed.
    Returns:
    true if the package is sealed, false otherwise

method:isSealed(java.net.URL) [CHANGED]

  • isSealed

    public boolean isSealed(java.net.URL url)
    Returns true if this package is sealed with respect to the specified code source url.
    Parameters:
    url - the code source urlURL
    Returns:
    true if this package is sealed with respect to the given url
  • isSealed

    public boolean isSealed(java.net.URL url)
    Returns true if this package is sealed with respect to the specified code source url.
    Parameters:
    url - the code source url
    Returns:
    true if this package is sealed with respect to url
  • isSealed

    public boolean isSealed(java.net.URL url)
    Returns true if this package is sealed with respect to the specified code source url.
    Parameters:
    url - the code source URL
    Returns:
    true if this package is sealed with respect to the given url

method:isCompatibleWith(java.lang.String) [CHANGED]

  • isCompatibleWith

    public boolean isCompatibleWith(java.lang.String desired)
                             throws java.lang.NumberFormatException
    Compare this package's specification version with a desired version. It returns true if this packages specification version number is greater than or equal to the desired version number.

    Version numbers are compared by sequentially comparing corresponding components of the desired and specification strings. Each component is converted as a decimal integer and the values compared. If the specification value is greater than the desired value true is returned. If the value is less false is returned. If the values are equal the period is skipped and the next pair of components is compared.

    Parameters:
    desired - the version string of the desired version.
    Returns:
    true if this package's version number is greater than or equal to the desired version number
    Throws:
    java.lang.NumberFormatException - if the current version is not known or the desired or current version is not of the correct dotted form.
  • isCompatibleWith

    public boolean isCompatibleWith(java.lang.String desired)
                             throws java.lang.NumberFormatException
    Compare this package's specification version with a desired version. It returns true if this packages specification version number is greater than or equal to the desired version number.

    Version numbers are compared by sequentially comparing corresponding components of the desired and specification strings. Each component is converted as a decimal integer and the values compared. If the specification value is greater than the desired value true is returned. If the value is less false is returned. If the values are equal the period is skipped and the next pair of components is compared.

    Parameters:
    desired - the version string of the desired version.
    Returns:
    true if this package's version number is greater than or equal to the desired version number
    Throws:
    java.lang.NumberFormatException - if the desired or current version is not of the correct dotted form.
  • isCompatibleWith

    public boolean isCompatibleWith(java.lang.String desired)
                             throws java.lang.NumberFormatException
    Compare this package's specification version with a desired version. It returns true if this packages specification version number is greater than or equal to the desired version number.

    Version numbers are compared by sequentially comparing corresponding components of the desired and specification strings. Each component is converted as a decimal integer and the values compared. If the specification value is greater than the desired value true is returned. If the value is less false is returned. If the values are equal the period is skipped and the next pair of components is compared.

    Parameters:
    desired - the version string of the desired version.
    Returns:
    true if this package's version number is greater than or equal to the desired version number
    Throws:
    java.lang.NumberFormatException - if the current version is not known or the desired or current version is not of the correct dotted form.

method:getPackage(java.lang.String) [CHANGED]

  • getPackage

    @Deprecated(since="9")
    public static Package getPackage(java.lang.String name)
    FindDeprecated. If multiple class loaders delegate to each other and define classes with the same package name, and one such loader relies on the lookup behavior of getPackage to return a Package from a parent loader, then the properties exposed by the Package may not be as expected in the rest of the program. For example, the Package will only expose annotations from the package-info.class file defined by namethe parent loader, even if annotations exist in a package-info.class file defined by a child loader. A more robust approach is to use the callersClassLoader instance. The callers ClassLoader instance is used to find.getDefinedPackage(java.lang.String) method which returns a Package for the specified class loader.
    Finds a package instance corresponding toby name in the namedcaller's class loader and its ancestors.

    If the caller's class loader defines a Package of the given name, the callers ClassLoader instancePackage is null thenreturned. Otherwise, the setancestors of packages loadedthe caller's class loader are searched recursively (parent by parent) for a Package of the systemgiven name.

    Calling this method is equivalent to calling ClassLoader.getPackage(java.lang.String) on a ClassLoader instance which is searched to findthe named package. Packages have attributes for versions and specifications only if thecaller's class loader created the package instance with the appropriate attributes. Typically, those attributes are defined in the manifests that accompany the classes.

    Parameters:
    name - aA package name, for example,such as "java.lang".
    Returns:
    the packageThe Package of the requestedgiven name . It may bedefined by the caller's class loader or its ancestors, or null if not found.
    Throws:
    java.lang.NullPointerException - if no package informationname is available from the archive or codebase.null .
    See Also:
    ClassLoader.getDefinedPackage(java.lang.String)
  • getPackage

    public static Package getPackage(java.lang.String name)
    Find a package by name in the callers ClassLoader instance. The callers ClassLoader instance is used to find the package instance corresponding to the named class. If the callers ClassLoader instance is null then the set of packages loaded by the system ClassLoader instance is searched to find the named package.

    Packages have attributes for versions and specifications only if the class loader created the package instance with the appropriate attributes. Typically, those attributes are defined in the manifests that accompany the classes.

    Parameters:
    name - a package name, for example, java.lang.
    Returns:
    the package of the requested name. It may be null if no package information is available from the archive or codebase.
  • getPackage

    @Deprecated(since="9")
    public static Package getPackage(java.lang.String name)
    Deprecated. If multiple class loaders delegate to each other and define classes with the same package name, and one such loader relies on the lookup behavior of getPackage to return a Package from a parent loader, then the properties exposed by the Package may not be as expected in the rest of the program. For example, the Package will only expose annotations from the package-info.class file defined by the parent loader, even if annotations exist in a package-info.class file defined by a child loader. A more robust approach is to use the ClassLoader.getDefinedPackage(java.lang.String) method which returns a Package for the specified class loader.
    Finds a package by name in the caller's class loader and its ancestors.

    If the caller's class loader defines a Package of the given name, the Package is returned. Otherwise, the ancestors of the caller's class loader are searched recursively (parent by parent) for a Package of the given name.

    Calling this method is equivalent to calling ClassLoader.getPackage(java.lang.String) on a ClassLoader instance which is the caller's class loader.

    Parameters:
    name - A package name, such as "java.lang".
    Returns:
    The Package of the given name defined by the caller's class loader or its ancestors, or null if not found.
    Throws:
    java.lang.NullPointerException - if name is null.
    See Also:
    ClassLoader.getDefinedPackage(java.lang.String)

method:getPackages() [CHANGED]

  • getPackages

    public static Package[] getPackages()
    GetReturns all of the packages currently known forPackage s defined by the caller's ClassLoader instance. Those packages correspond to classes loaded via or accessibleclass loader and its ancestors. The returned array may contain more than one Package object of the same package name, each defined by namea different class loader in the class loader hierarchy.

    Calling this method is equivalent to thatcalling ClassLoader.getPackages() on a ClassLoader instance . Ifwhich is the caller's ClassLoader instance is the bootstrap ClassLoader instance, which may be represented by null in some implementations, only packages corresponding to classes loaded by the bootstrap ClassLoader instance will be returnedclass loader.

    Returns:
    a newThe array of packages known to the callersPackage objects defined by this class loader and its ancestors
    See Also:
    ClassLoader instance. An zero length array is returned if none are known..getDefinedPackages()
  • getPackages

    public static Package[] getPackages()
    Get all the packages currently known for the caller's ClassLoader instance. Those packages correspond to classes loaded via or accessible by name to that ClassLoader instance. If the caller's ClassLoader instance is the bootstrap ClassLoader instance, which may be represented by null in some implementations, only packages corresponding to classes loaded by the bootstrap ClassLoader instance will be returned.
    Returns:
    a new array of packages known to the callers ClassLoader instance. An zero length array is returned if none are known.
  • getPackages

    public static Package[] getPackages()
    Returns all of the Packages defined by the caller's class loader and its ancestors. The returned array may contain more than one Package object of the same package name, each defined by a different class loader in the class loader hierarchy.

    Calling this method is equivalent to calling ClassLoader.getPackages() on a ClassLoader instance which is the caller's class loader.

    Returns:
    The array of Package objects defined by this class loader and its ancestors
    See Also:
    ClassLoader.getDefinedPackages()

method:hashCode() [NONE]

  • hashCode

    public int hashCode()
    Return the hash code computed from the package name.
    Overrides:
    hashCode in class java.lang.Object
    Returns:
    the hash code computed from the package name.
    See Also:
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

method:toString() [NONE]

  • toString

    public java.lang.String toString()
    Returns the string representation of this Package. Its value is the string "package " and the package name. If the package title is defined it is appended. If the package version is defined it is appended.
    Overrides:
    toString in class java.lang.Object
    Returns:
    the string representation of the package.

method:getAnnotation(java.lang.Class) [NONE]

  • getAnnotation

    public <A extends java.lang.annotation.Annotation> A getAnnotation(Class<A> annotationClass)
    Description copied from interface: java.lang.reflect.AnnotatedElement
    Returns this element's annotation for the specified type if such an annotation is present, else null.
    Specified by:
    getAnnotation in interface java.lang.reflect.AnnotatedElement
    Type Parameters:
    A - the type of the annotation to query for and return if present
    Parameters:
    annotationClass - the Class object corresponding to the annotation type
    Returns:
    this element's annotation for the specified annotation type if present on this element, else null
    Throws:
    java.lang.NullPointerException - if the given annotation class is null
    Since:
    1.5

method:isAnnotationPresent(java.lang.Class) [NONE]

  • isAnnotationPresent

    public boolean isAnnotationPresent(Class<? extends java.lang.annotation.Annotation> annotationClass)
    Returns true if an annotation for the specified type is present on this element, else false. This method is designed primarily for convenient access to marker annotations.

    The truth value returned by this method is equivalent to: getAnnotation(annotationClass) != null

    The body of the default method is specified to be the code above.

    Specified by:
    isAnnotationPresent in interface java.lang.reflect.AnnotatedElement
    Parameters:
    annotationClass - the Class object corresponding to the annotation type
    Returns:
    true if an annotation for the specified annotation type is present on this element, else false
    Throws:
    java.lang.NullPointerException - if the given annotation class is null
    Since:
    1.5

method:getAnnotationsByType(java.lang.Class) [NONE]

  • getAnnotationsByType

    public <A extends java.lang.annotation.Annotation> A[] getAnnotationsByType(Class<A> annotationClass)
    Description copied from interface: java.lang.reflect.AnnotatedElement
    Returns annotations that are associated with this element. If there are no annotations associated with this element, the return value is an array of length 0. The difference between this method and AnnotatedElement.getAnnotation(Class) is that this method detects if its argument is a repeatable annotation type (JLS 9.6), and if so, attempts to find one or more annotations of that type by "looking through" a container annotation. The caller of this method is free to modify the returned array; it will have no effect on the arrays returned to other callers.
    Specified by:
    getAnnotationsByType in interface java.lang.reflect.AnnotatedElement
    Type Parameters:
    A - the type of the annotation to query for and return if present
    Parameters:
    annotationClass - the Class object corresponding to the annotation type
    Returns:
    all this element's annotations for the specified annotation type if associated with this element, else an array of length zero
    Throws:
    java.lang.NullPointerException - if the given annotation class is null
    Since:
    1.8

method:getAnnotations() [NONE]

  • getAnnotations

    public java.lang.annotation.Annotation[] getAnnotations()
    Description copied from interface: java.lang.reflect.AnnotatedElement
    Returns annotations that are present on this element. If there are no annotations present on this element, the return value is an array of length 0. The caller of this method is free to modify the returned array; it will have no effect on the arrays returned to other callers.
    Specified by:
    getAnnotations in interface java.lang.reflect.AnnotatedElement
    Returns:
    annotations present on this element
    Since:
    1.5

method:getDeclaredAnnotation(java.lang.Class) [NONE]

  • getDeclaredAnnotation

    public <A extends java.lang.annotation.Annotation> A getDeclaredAnnotation(Class<A> annotationClass)
    Description copied from interface: java.lang.reflect.AnnotatedElement
    Returns this element's annotation for the specified type if such an annotation is directly present , else null. This method ignores inherited annotations. (Returns null if no annotations are directly present on this element.)
    Specified by:
    getDeclaredAnnotation in interface java.lang.reflect.AnnotatedElement
    Type Parameters:
    A - the type of the annotation to query for and return if directly present
    Parameters:
    annotationClass - the Class object corresponding to the annotation type
    Returns:
    this element's annotation for the specified annotation type if directly present on this element, else null
    Throws:
    java.lang.NullPointerException - if the given annotation class is null
    Since:
    1.8

method:getDeclaredAnnotationsByType(java.lang.Class) [NONE]

  • getDeclaredAnnotationsByType

    public <A extends java.lang.annotation.Annotation> A[] getDeclaredAnnotationsByType(Class<A> annotationClass)
    Description copied from interface: java.lang.reflect.AnnotatedElement
    Returns this element's annotation(s) for the specified type if such annotations are either directly present or indirectly present . This method ignores inherited annotations. If there are no specified annotations directly or indirectly present on this element, the return value is an array of length 0. The difference between this method and AnnotatedElement.getDeclaredAnnotation(Class) is that this method detects if its argument is a repeatable annotation type (JLS 9.6), and if so, attempts to find one or more annotations of that type by "looking through" a container annotation if one is present. The caller of this method is free to modify the returned array; it will have no effect on the arrays returned to other callers.
    Specified by:
    getDeclaredAnnotationsByType in interface java.lang.reflect.AnnotatedElement
    Type Parameters:
    A - the type of the annotation to query for and return if directly or indirectly present
    Parameters:
    annotationClass - the Class object corresponding to the annotation type
    Returns:
    all this element's annotations for the specified annotation type if directly or indirectly present on this element, else an array of length zero
    Throws:
    java.lang.NullPointerException - if the given annotation class is null
    Since:
    1.8

method:getDeclaredAnnotations() [NONE]

  • getDeclaredAnnotations

    public java.lang.annotation.Annotation[] getDeclaredAnnotations()
    Description copied from interface: java.lang.reflect.AnnotatedElement
    Returns annotations that are directly present on this element. This method ignores inherited annotations. If there are no annotations directly present on this element, the return value is an array of length 0. The caller of this method is free to modify the returned array; it will have no effect on the arrays returned to other callers.
    Specified by:
    getDeclaredAnnotations in interface java.lang.reflect.AnnotatedElement
    Returns:
    annotations directly present on this element
    Since:
    1.5