Property:

org.zkoss.util.logging.realCauseBriefly

Applicable:
  • globally in zk.xml via <library-property>
  • not as <custom-attribute>

Default: 6
since 3.6.1

It defines the number of lines to log an error message.

If nonpositive is specified, the full stack traces are logged. Notice that # of lines don’t include packages starting with java, javax, sun, or bsh.