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## org.mozilla.javascript
Class UniqueTag

    java.lang.Object
      org.mozilla.javascript.UniqueTag

All Implemented Interfaces:
  java.io.Serializable

    public final class UniqueTag

extends java.lang.Object
implements java.io.Serializable

Class instances represent serializable tags to mark special Object values.

Compatibility note: under jdk 1.1 use org.mozilla.javascript.serialize.ScriptableInputStream to read serialized instances of UniqueTag as under this JDK version the default ObjectInputStream would not restore them correctly as it lacks support for readResolve method

See Also:
  Serialized Form

Field Summary
`static UniqueTag` | `DOUBLE_MARK` Tag to indicate that a object represents "double" with the real value stored somewhere else.
`static UniqueTag` | `NOT_FOUND` Tag to mark non-existing values.
`static UniqueTag` | `NULL_VALUE` Tag to distinguish between uninitialized and null values.

Method Summary
`java.lang.Object` | `readResolve()`
`java.lang.String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### NOT_FOUND

    public static final UniqueTag NOT_FOUND

  Tag to mark non-existing values.

### NULL_VALUE

    public static final UniqueTag NULL_VALUE

  Tag to distinguish between uninitialized and null values.

### DOUBLE_MARK

    public static final UniqueTag DOUBLE_MARK

  Tag to indicate that a object represents "double" with the real value stored somewhere else.

Method Detail

### readResolve

    public java.lang.Object readResolve()

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Object`

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