# Package org.apache.tomcat.util

- Interface Summary
  Interface | Description
  --- | ---
  IntrospectionUtils.AttributeHolder | Deprecated Is used only by deprecated method
  IntrospectionUtils.PropertySource |

- Class Summary
  Class | Description
  --- | ---
  Diagnostics |
  DomUtil | Deprecated Unused: Will be removed in Tomcat 8.0.x
  DomUtil.NullResolver |
  ExceptionUtils | Utilities for handling Throwables and Exceptions.
  IntrospectionUtils | Utils for introspection and reflection
  MutableInteger | Deprecated Will be removed in Tomcat 8.0.x

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