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## org.apache.commons.jexl3.introspection
Class JexlSandbox.BlackSet

    java.lang.Object
      org.apache.commons.jexl3.introspection.JexlSandbox.Names
          org.apache.commons.jexl3.introspection.JexlSandbox.BlackSet

Enclosing class:
  JexlSandbox

    public static final class JexlSandbox.BlackSet

extends JexlSandbox.Names

A black set of names.

Constructor Summary
`JexlSandbox.BlackSet()`

Method Summary
`boolean` | `add(String name)` Adds a name to this set.
`protected JexlSandbox.Names` | `copy()`
`String` | `get(String name)` Whether a given name is allowed or not.

Methods inherited from class org.apache.commons.jexl3.introspection.JexlSandbox.Names
`alias`

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

Constructor Detail

### JexlSandbox.BlackSet

    public JexlSandbox.BlackSet()

Method Detail

### copy

    protected JexlSandbox.Names copy()

  Overrides:
    `copy` in class `JexlSandbox.Names`
  Returns:
    a copy of these Names

### add

    public boolean add(String name)

  Description copied from class: `JexlSandbox.Names`
  Adds a name to this set.

  Specified by:
    `add` in class `JexlSandbox.Names`
  Parameters:
    `name` - the name to add
  Returns:
    true if the name was really added, false if not

### get

    public String get(String name)

  Description copied from class: `JexlSandbox.Names`
  Whether a given name is allowed or not.

  Overrides:
    `get` in class `JexlSandbox.Names`
  Parameters:
    `name` - the method/property name to check
  Returns:
    null if not allowed, the actual name to use otherwise

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