docs/DEVELOPER_README
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dump profiling data for all callsites to stderr as a shutdown hook. To
instead redirect this to a file, specify the path to the file using
this system property.
+ SYSTEM_PROPERTY: nashorn.regexp.impl=[jdk|joni]
+
+ This property defines the regular expression engine to be used by
+ Nashorn. The default implementation is "jdk" which is based on the
+ JDK's java.util.regex package. Set this property to "joni" to install
+ an implementation based on Joni, the regular expression engine used by
+ the JRuby project.
+
+
===============
2. The loggers.
===============
It is very simple to create your own logger. Use the DebugLogger class