Avoid inferring caller in LogRecord.getSourceClassName and getSourceMethodName when processing System.out calls

[donbourne]

Currently the code is trying to figure out the JUL caller, even in cases where we are just logging our System.out.print "events". inferCaller is expensive so we need to stop doing that.

4XESTACKTRACE at java/lang/J9VMInternals.getStackTrace(Native Method)
4XESTACKTRACE at java/lang/Throwable.getInternalStackTrace(Throwable.java:284(Compiled Code))
4XESTACKTRACE at java/lang/Access.getStackTraceDepth(Access.java:117(Compiled Code))
4XESTACKTRACE at java/util/logging/LogRecord.inferCaller(LogRecord.java:557(Compiled Code))
4XESTACKTRACE at java/util/logging/LogRecord.getSourceClassName(LogRecord.java:319(Compiled Code))
4XESTACKTRACE at com/ibm/ws/logging/internal/impl/BaseTraceFormatter.messageLogFormat(BaseTraceFormatter.java:462(Compiled Code))
4XESTACKTRACE at com/ibm/ws/logging/internal/impl/BaseTraceService.invokeMessageRouters(BaseTraceService.java:712(Compiled Code))
4XESTACKTRACE at com/ibm/ws/logging/internal/impl/BaseTraceService.echo(BaseTraceService.java:644(Compiled Code))
4XESTACKTRACE at com/ibm/ws/logging/internal/impl/BaseTraceService$TrOutputStream.flush(BaseTraceService.java:1248(Compiled Code)) 5XESTACKTRACE (entered lock: com/ibm/ws/logging/internal/impl/BaseTraceService$TrOutputStream@0x00000000E02E4150, entry count: 1)
4XESTACKTRACE at java/io/PrintStream.write(PrintStream.java:506(Compiled Code)) 5XESTACKTRACE (entered lock: com/ibm/ws/logging/internal/impl/BaseTraceService$TeePrintStream@0x00000000E02D5EC8, entry count: 1)

[fwji]

PH11759 is created

[fwji]

New performance result:

Action	Threads	Duration (s)	Delay (ms)	Actions Completed	Actions per Second
sysout	1	90	0	2885981	32066

Old performance result:

Action	Threads	Duration (s)	Delay (ms)	Actions Completed	Actions per Second
sysout	1	90	0	977688	10863