A JSP includes elements (directive, action, and scripting element) and template text. The template text includes white space. Normally, the white spaces included in the template text are maintained as are, but from the JSP 2.1 specifications, functionality is added to delete the unwanted white spaces included in the template text of tag files of the JSP pages or standard syntax. For details, see 6.2.7(2) Functionality for deleting unwanted white spaces.

Reference note

JSP EL has been provided from the JSP 2.0 specifications. JSP EL is a simplified language that allows you to code directly in an action or a template text. For details, see 2.3.3 Executing JSP EL.

A translation error is an error that occurs when the JSP file cannot be converted to a Java file (JSP translation) due to syntax errors in the JSP compilation process.

JSP translation is executed at the following times, but translation errors might occur at these times:

• When JSP receives a request
• When the applications are reloaded
• When the applications are started for using the JSP pre-compilation functionality
• When the commands are executed for using the JSP pre-compilation functionality

When a translation error occurs during the JSP compilation on a J2EE server, the message KDJE39145-E is output in the servlet log and the message KDJE39186-E is output in the message log. When a translation error occurs during the processing of a request, the redirector returns the error status code 500.

If a translation error occurs during the JSP pre-compilation using the cjjspc command, the messages KDJE39145-E and KDJE39186-E are displayed on the console.

Note that translation errors might also occur due to other causes, such as analysis of the TLD file, JSP validation by the tag library validator, or the duplication of script variables specified in the TagExtraInfo class. In these cases, the messages are displayed according to the cause. The following table lists the messages displayed during the translation error, with their respective cause:

Table 2-7 Messages output when translation errors occur due to the causes other than the JSP compilation

Classification of causes	Output messages
Parsing of the TLD file	KDJE39214-E, KDJE39216-E, KDJE39193-E, KDJE39055-E, KDJE39205-E, KDJE39206-E, KDJE39207-E, KDJE39208-E, KDJE39296-E, KDJE39301-E, KDJE39302-E, KDJE39303-E, KDJE39305-E, KDJE39306-E, KDJE39307-E, KDJE39308-E
JSP validation by tag library validator	KDJE39104-E, KDJE39105-E, KDJE39106-E, KDJE39107-E, KDJE39108-E, KDJE39115-E, KDJE39116-E, KDJE39117-E, KDJE39134-E, KDJE39135-E
Duplication of script variables specified in the TagExtraInfo class	KDJE39131-E, KDJE39132-E, KDJE39133-E, KDJE39136-E, KDJE39282-E, KDJE39283-E, KDJE39291-E, KDJE39294-E