HP-UX Programmer's Guide for Java 2

foreground task until completed, regardless of how long the compilation takes. This
flag is provided for users who desire more deterministic behavior of method compilation
for purposes such as benchmarking.
-Xbootclasspath
Specify a semicolon-separated list of directories, JAR archives, and ZIP archives to
search for boot class files. These will be used in place of the default boot class files in
the jre/lib/rt.jar and jre/lib/i18n.jar archives normally used by the Java™
2 software.
-XdoCloseWithReadPending
The java command-line option -XdoCloseWithReadPending allows one thread to
close() a socket when there is an outstanding read pending on that same socket from
another thread.
For more information on when and how to use this option, see Closing a socket when
accept or read is pending (PA-RISC).
-Xeprof
The -Xeprof option generates profile data for HPjmeter. The -Xeprof option controls
profiling of Java™ applications running on JRE for HP-UX for the Java™ 2 Platform
and collects method clock and CPU times, method call count, and call graph.
NOTE: Zero preparation profiling is a beta feature of the HP JDK/JRE 5.0.03. It is
started from the command line by sending a signal to the JVM to start eprof. Engaging
zero preparation profiling may have a short term impact on application performance
as the JVM adjusts to the demands of performing dynamic measurements.
To profile your application, use the following command:
java -Xeprof:<options> ApplicationClassName
To profile your applet, use:
appletviewer -J-Xeprof:<options> URL
where <options> is a list of <key>[=<value>] arguments separated by commas.
We have found the following options useful in most cases:
For CPU time metrics with minimal intrusion:
-Xeprof
Exact call count information and object creation profiling:
-Xeprof:inlining=disable
To see the complete list of available options, use
java-Xeprof:help
16 HotSpot Technology Tools and Commands