# Deprecated API

## Contents

- Classes
- Methods

- Classes
  Class | Description
  --- | ---
  org.apache.commons.configuration2.interpol.EnvironmentLookup | Use `DefaultLookups.ENVIRONMENT`.
  org.apache.commons.configuration2.interpol.SystemPropertiesLookup | Use `DefaultLookups.SYSTEM_PROPERTIES`.

- Methods
  Method | Description
  --- | ---
  org.apache.commons.configuration2.ImmutableConfiguration.getArray​(Class<?>, String, Object) | This method should not be used any more because its signature does not allow type-safe invocations; use `ImmutableConfiguration.get(Class, String, Object)` instead which offers the same functionality; for instance, to query for an array of ints use `int[] result = config.get(int[].class, "myArrayKey", someDefault);`.
  org.apache.commons.configuration2.plist.SimpleCharStream.getColumn() |
  org.apache.commons.configuration2.plist.SimpleCharStream.getLine() |
  org.apache.commons.configuration2.PropertiesConfigurationLayout.getBlancLinesBefore​(String) | Use `PropertiesConfigurationLayout.getBlankLinesBefore(String)`.
  org.apache.commons.configuration2.PropertiesConfigurationLayout.setBlancLinesBefore​(String, int) | use `PropertiesConfigurationLayout.setBlankLinesBefore(String, int)`.