Package org.apache.jasper

## Class Constants

- java.lang.Object
- - org.apache.jasper.Constants

-     public class Constants
      extends java.lang.Object

  Some constants and other global data that are used by the compiler and the runtime.
  Author:
    Anil K. Vijendran, Harish Prabandham, Shawn Bayern, Mark Roth

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static java.lang.String` | `CATALINA_HOME_PROP` | Name of the system property containing the tomcat product installation path
    `static int` | `DEFAULT_BUFFER_SIZE` | Default size of the JSP buffer.
    `static int` | `DEFAULT_TAG_BUFFER_SIZE` | Default size for the tag buffers.
    `static java.lang.String` | `IE_PLUGIN_URL` | Deprecated.
    `static boolean` | `IS_SECURITY_ENABLED` | Has security been turned on?
    `static java.lang.String` | `JSP_FACTORY_POOL_SIZE_INIT_PARAM` | Name of the ServletContext init-param that determines the JSP factory pool size.
    `static int` | `MAX_POOL_SIZE` | Default tag handler pool size.
    `static java.lang.String` | `NS_PLUGIN_URL` | Deprecated. Will be removed in Tomcat 10.1 onwards
    `static java.lang.String` | `SPEC_VERSION` |
    `static java.util.List<java.lang.String>` | `STANDARD_IMPORTS` |
    `static java.lang.String` | `XML_BLOCK_EXTERNAL_INIT_PARAM` | Name of the ServletContext init-param that determines if the XML parsers will block the resolution of external entities.
    `static java.lang.String` | `XML_VALIDATION_TLD_INIT_PARAM` | Name of the ServletContext init-param that determines if the XML parsers used for *.tld files will be validating or not.

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `Constants()` |

  - ### Method Summary

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### SPEC_VERSION

          public static final java.lang.String SPEC_VERSION

      See Also:
        Constant Field Values

    - #### STANDARD_IMPORTS

          public static final java.util.List<java.lang.String> STANDARD_IMPORTS

    - #### DEFAULT_BUFFER_SIZE

          public static final int DEFAULT_BUFFER_SIZE

      Default size of the JSP buffer.
      See Also:
        Constant Field Values

    - #### DEFAULT_TAG_BUFFER_SIZE

          public static final int DEFAULT_TAG_BUFFER_SIZE

      Default size for the tag buffers.
      See Also:
        Constant Field Values

    - #### MAX_POOL_SIZE

          public static final int MAX_POOL_SIZE

      Default tag handler pool size.
      See Also:
        Constant Field Values

    - #### NS_PLUGIN_URL

          @Deprecated
          public static final java.lang.String NS_PLUGIN_URL

      Deprecated.
      Will be removed in Tomcat 10.1 onwards
      Default URLs to download the plugin for Netscape and IE.
      See Also:
        Constant Field Values

    - #### IE_PLUGIN_URL

          @Deprecated
          public static final java.lang.String IE_PLUGIN_URL

      Deprecated.
      See Also:
        Constant Field Values

    - #### IS_SECURITY_ENABLED

          public static final boolean IS_SECURITY_ENABLED

      Has security been turned on?

    - #### CATALINA_HOME_PROP

          public static final java.lang.String CATALINA_HOME_PROP

      Name of the system property containing the tomcat product installation path
      See Also:
        Constant Field Values

    - #### XML_VALIDATION_TLD_INIT_PARAM

          public static final java.lang.String XML_VALIDATION_TLD_INIT_PARAM

      Name of the ServletContext init-param that determines if the XML parsers used for *.tld files will be validating or not.

      This must be kept in sync with org.apache.catalina.Globals

      See Also:
        Constant Field Values

    - #### XML_BLOCK_EXTERNAL_INIT_PARAM

          public static final java.lang.String XML_BLOCK_EXTERNAL_INIT_PARAM

      Name of the ServletContext init-param that determines if the XML parsers will block the resolution of external entities.

      This must be kept in sync with org.apache.catalina.Globals

      See Also:
        Constant Field Values

    - #### JSP_FACTORY_POOL_SIZE_INIT_PARAM

          public static final java.lang.String JSP_FACTORY_POOL_SIZE_INIT_PARAM

      Name of the ServletContext init-param that determines the JSP factory pool size. Set the value to a positive integer to enable it. The default value is `8` per thread.
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### Constants

          public Constants()