6879044: Eliminate the dependency of logging from the JRE core/awt/swing classes
Webrev:
http://cr.openjdk.java.net/~mchung/6879044/webrev.00/
Summary:
1. A new sun.util.logging.PlatformLogger class that will handle the log
messages in a similar way as Logger but it will only delegate to
java.util.logging only when it is enabled. LogManager and LogRecord are
modified to support the platform loggers. The users of PlatformLogger will
continue to run if java.util.logging classes do not exist.
2. AWT, 2D, Swing, and a few java.util classes are modified to use
PlatformLogger instead of Logger. Although many files are modified, the change
is mostly replacement with classname.
AWT statically creates a number of loggers. Running a simple AWT Framer application with JDK 7 b71 creates 79 loggers on solaris-i586 and 34 loggers on windows-i586. SwingSet2 creates a total of 85 loggers including a few non-awt ones on solaris-i586 and 35 on windows-i586).
Although the memory usage might not be very high (especially with this fix), I
don't see the need of having many fine-grained loggers. This fix doesn't
address this the number of AWT loggers. I file a separate CR (6880089) to
revisit it.
Startup Performance:
This change does not have significant startup performance improvement, as
expected. However, it does reduce the number of loaded classes (Framer app
loads 16 fewer classes and jedit loads 13 fewer classes).
Thanks
Mandy
