Package net.bytebuddy.utility

Enum Class JavaType

java.lang.Object
java.lang.Enum<JavaType>
net.bytebuddy.utility.JavaType
All Implemented Interfaces:
Serializable, Comparable<JavaType>, Constable
public enum JavaType extends Enum<JavaType>
Representations of Java types that do not exist in Java 6 but that have a special meaning to the JVM.

  • Enum Constant Details

    • CONSTABLE

      public static final JavaType CONSTABLE
      The Java 12 java.lang.constant.Constable type.

    • TYPE_DESCRIPTOR

      public static final JavaType TYPE_DESCRIPTOR
      The Java 12 java.lang.invoke.TypeDescriptor type.

    • TYPE_DESCRIPTOR_OF_FIELD

      public static final JavaType TYPE_DESCRIPTOR_OF_FIELD
      The Java 12 java.lang.invoke.TypeDescriptor$OfMethod type.

    • TYPE_DESCRIPTOR_OF_METHOD

      public static final JavaType TYPE_DESCRIPTOR_OF_METHOD
      The Java 12 java.lang.invoke.TypeDescriptor$OfMethod type.

    • CONSTANT_DESCRIPTION

      public static final JavaType CONSTANT_DESCRIPTION
      The Java 12 java.lang.constant.ConstableDesc type.

    • DYNAMIC_CONSTANT_DESCRIPTION

      public static final JavaType DYNAMIC_CONSTANT_DESCRIPTION
      The Java 12 java.lang.constant.DynamicConstantDesc type.

    • CLASS_DESCRIPTION

      public static final JavaType CLASS_DESCRIPTION
      The Java 12 java.lang.constant.ClassDesc type.

    • METHOD_TYPE_DESCRIPTION

      public static final JavaType METHOD_TYPE_DESCRIPTION
      The Java 12 java.lang.constant.MethodTypeDesc type.

    • METHOD_HANDLE_DESCRIPTION

      public static final JavaType METHOD_HANDLE_DESCRIPTION
      The Java 12 java.lang.constant.MethodHandleDesc type.

    • DIRECT_METHOD_HANDLE_DESCRIPTION

      public static final JavaType DIRECT_METHOD_HANDLE_DESCRIPTION
      The Java 12 java.lang.constant.DirectMethodHandleDesc type.

    • METHOD_HANDLE

      public static final JavaType METHOD_HANDLE
      The Java 7 java.lang.invoke.MethodHandle type.

    • METHOD_HANDLES

      public static final JavaType METHOD_HANDLES
      The Java 7 java.lang.invoke.MethodHandles type.

    • METHOD_TYPE

      public static final JavaType METHOD_TYPE
      The Java 7 java.lang.invoke.MethodType type.

    • METHOD_HANDLES_LOOKUP

      public static final JavaType METHOD_HANDLES_LOOKUP
      The Java 7 java.lang.invoke.MethodTypes.Lookup type.

    • CALL_SITE

      public static final JavaType CALL_SITE
      The Java 7 java.lang.invoke.CallSite type.

    • VAR_HANDLE

      public static final JavaType VAR_HANDLE
      The Java 9 java.lang.invoke.VarHandle type.

    • PARAMETER

      public static final JavaType PARAMETER
      The Java 8 java.lang.reflect.Parameter type.

    • EXECUTABLE

      public static final JavaType EXECUTABLE
      The Java 7 java.lang.reflect.Executable type.

    • MODULE

      public static final JavaType MODULE
      The Java 9 java.lang.Module type.

    • CONSTANT_BOOTSTRAPS

      public static final JavaType CONSTANT_BOOTSTRAPS
      The Java 12 java.lang.invoke.ConstantBootstraps type.

    • RECORD

      public static final JavaType RECORD
      The Java 14 java.lang.Record type.

    • OBJECT_METHODS

      public static final JavaType OBJECT_METHODS
      The Java 14 java.lang.runtime.ObjectMethods type.

    • ACCESS_CONTROL_CONTEXT

      public static final JavaType ACCESS_CONTROL_CONTEXT
      The java.security.AccessControlContext type which is deprecated for removal beginning in Java 17.

  • Field Details

    • typeDescription

      private final TypeDescription typeDescription
      The type description to represent this type which is either a loaded type or a stub.

  • Constructor Details

    • JavaType

      private JavaType(String typeName, int modifiers, @MaybeNull Type superClass, Type... anInterface)
      Creates a new java type representation.
      Parameters:
      typeName - The binary name of this type.
      modifiers - The modifiers of this type when creating a stub.
      superClass - The super class of this type when creating a stub or null if no super class is defined.
      anInterface - The interfaces of this type when creating a stub.

    • JavaType

      private JavaType(String typeName, int modifiers, @MaybeNull TypeDefinition superClass, TypeDefinition... anInterface)
      Creates a new java type representation.
      Parameters:
      typeName - The binary name of this type.
      modifiers - The modifiers of this type when creating a stub.
      superClass - The super class of this type when creating a stub or null if no super class is defined.
      anInterface - The interfaces of this type when creating a stub.

    • JavaType

      private JavaType(String typeName, int modifiers, @MaybeNull TypeDescription.Generic superClass, TypeList.Generic interfaces)
      Creates a new java type representation.
      Parameters:
      typeName - The binary name of this type.
      modifiers - The modifiers of this type when creating a stub.
      superClass - The super class of this type when creating a stub or null if no super class is defined.
      interfaces - The interfaces of this type when creating a stub.

  • Method Details

    • values

      public static JavaType[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared

    • valueOf

      public static JavaType valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum class has no constant with the specified name
      NullPointerException - if the argument is null

    • getTypeStub

      public TypeDescription getTypeStub()
      Returns at least a stub representing this type where the stub does not define any methods or fields. If a type exists for the current runtime, a loaded type representation is returned.
      Returns:
      A type description for this Java type.

    • load

      @Enhance("loaded") public Class<?> load() throws ClassNotFoundException
      Loads the class that is represented by this Java type.
      Returns:
      A loaded type of this Java type.
      Throws:
      ClassNotFoundException - If the represented type cannot be loaded.

    • loadAsDescription

      public TypeDescription loadAsDescription() throws ClassNotFoundException
      Loads the class that is represented by this Java type and represents it as a TypeDescription.
      Returns:
      A loaded type of this Java type.
      Throws:
      ClassNotFoundException - If the represented type cannot be loaded.

    • isAvailable

      public boolean isAvailable()
      Returns true if this type is available on the current JVM.
      Returns:
      true if this type is available on the current JVM.

    • doIsAvailable

      @Enhance("available") private Boolean doIsAvailable()
      Returns true if this type is available on the current VM. By boxing the result, the result can be cached efficiently what is not possible when using a primitive type.
      Returns:
      true if this type is available on the current JVM.

    • isInstance

      public boolean isInstance(Object instance)
      Checks if the supplied object is an instance of this type.
      Parameters:
      instance - The instance to check.
      Returns:
      true if the supplied object is an instance of this type.