name Element

zero or more 

Specifies a property. 

ieClassId

clsid:8AD9C840-

044E-11D1-B3E9-

00805F499D93

The Java Plug-in COM class ID for Internet Explorer. Used by the <jsp:plugin> tags.

javaCompilerPlugin

internal JDK compiler (javac)

This property is deprecated in this release. By this, we mean this is supported in 7.0 but will NOT be supported in future release 

If JSP Pages import classes from unnamed packages, the default-JDK compiler will throw a compile time error when JSP- generated servlets are compiled. To compile JSP- generated servlets, set the javaCompilerPlugin property to org.apache.jasper.compiler.SunJavaCompiler. Note: The jspc command-line compiler for JSPs no longer supports -javac option. Since this property is deprecated, you are strongly encouraged to modify JSPs so that the imported classes have a package name.

See also the -deprecatedjavac switch of jspc, described in Compiling JSPs Using the Command-Line Compiler.

javaEncoding

UTF8

Specifies the encoding for the generated Java servlet. This encoding is passed to the Java compiler used to compile the servlet as well. By default, the web container tries to use UTF8. If that fails, it tries to use the javaEncoding value.

For encodings you can use, see:  

http://java.sun.com/j2se/1.5.0/docs/guide/intl/encoding.doc.html

classdebuginfo

false

Specifies whether the generated Java servlets should be compiled with the debug option set (-g for javac).

keepgenerated

true

If set to true, keeps the generated Java files. If false, deletes the Java files.

mappedfile

false

If set to true, generates separate write calls for each HTML line and comments that describe the location of each line in the JSP file. By default, all adjacent write calls are combined and no location comments are generated.

scratchdir

Default work directory for the web application 

The working directory created for storing all of the generated code. 

reload-interval

0

Specifies the frequency (in seconds) at which JSP files are checked for modifications. Setting this value to 0 checks JSPs for modifications on every request. Setting this value to -1 disables checks for JSP modifications and JSP recompilation. 

initial-capacity

32

Specifies the initial size of the hash table of compiled JSP classes (see the following example).