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## com.sun.jdi
Interface InterfaceType

All Superinterfaces:
  Accessible, Comparable, Mirror, ReferenceType, Type

public interface InterfaceType
extends ReferenceType

A mirror of an interface in the target VM. An InterfaceType is a refinement of `ReferenceType` that applies to true interfaces in the JLS sense of the definition (not a class, not an array type). An interface type will never be returned by `ObjectReference.referenceType()`, but it may be in the list of implemented interfaces for a `ClassType` that is returned by that method.

Since:
  1.3
See Also:
  `ObjectReference`

Method Summary
`List` | `implementors()` Gets the currently prepared classes which directly implement this interface.
`List` | `subinterfaces()` Gets the currently prepared interfaces which directly extend this interface.
`List` | `superinterfaces()` Gets the interfaces directly extended by this interface.

Methods inherited from interface com.sun.jdi.ReferenceType
`allFields, allLineLocations, allLineLocations, allMethods, availableStrata, classLoader, classObject, defaultStratum, equals, failedToInitialize, fieldByName, fields, getValue, getValues, hashCode, isAbstract, isFinal, isInitialized, isPrepared, isStatic, isVerified, locationsOfLine, locationsOfLine, methods, methodsByName, methodsByName, name, nestedTypes, sourceDebugExtension, sourceName, sourceNames, sourcePaths, visibleFields, visibleMethods`

Methods inherited from interface com.sun.jdi.Type
`signature`

Methods inherited from interface com.sun.jdi.Mirror
`toString, virtualMachine`

Methods inherited from interface java.lang.Comparable
`compareTo`

Methods inherited from interface com.sun.jdi.Accessible
`isPackagePrivate, isPrivate, isProtected, isPublic, modifiers`

Method Detail

### superinterfaces

    public List superinterfaces()

  Gets the interfaces directly extended by this interface. The returned list contains only those interfaces this interface has declared to be extended.

  Returns:
    a List of `InterfaceType` objects each mirroring an interface extended by this interface. If none exist, returns a zero length List.
  Throws:
    `ClassNotPreparedException` - if this class not yet been prepared.

### subinterfaces

    public List subinterfaces()

  Gets the currently prepared interfaces which directly extend this interface. The returned list contains only those interfaces that declared this interface in their "extends" clause.

  Returns:
    a List of `InterfaceType` objects each mirroring an interface extending this interface. If none exist, returns a zero length List.

### implementors

    public List implementors()

  Gets the currently prepared classes which directly implement this interface. The returned list contains only those classes that declared this interface in their "implements" clause.

  Returns:
    a List of `ClassType` objects each mirroring a class implementing this interface. If none exist, returns a zero length List.

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