SDK/RTE 1.4.2.09 for Debian Linux on Intel Itanium Processors Release Notes

where <factory_class_name> is a qualified name of the class that will be used to

create the preprocessor, and <arguments> is any string that will be passed to the

method creating the preprocessor.

When the -Xprep option is specified, before loading the application classes, the Java

VM will load the specified factory class and execute its method declared as:

public static Preprocessor createPreprocessor (String arg)

where Preprocessor is an interface defined as:

package hp.javatools.bytecode;

public interface Preprocessor {

public abstract byte[] instrument (String name,

byte[] klass);

}

The VM will pass the <arguments> specified in the -Xprep option to the

createPreprocessor method as its only argument. The Preprocessor object returned by

the invocation will be saved by the VM.

For each subsequently loaded class, the VM will invoke the instrument method on the

Preprocessor object, passing the name of the class being loaded, and the bytecode

representation of the class. The returned array of bytes will be used by the VM as the

replacement of the original version of the class. If null is returned, the original version

of the class will be used.

-Xrs

Reduces use of operating-system signals by the Java virtual machine (JVM), allowing

for orderly shutdown of a Java application. Allows user cleanup code (such as closing

database connections) to run at shutdown, even if the JVM terminates abruptly. For

more information, see JavaSoft's documentation at:

http://download.oracle.com/javase/1.4.2/docs/tooldocs/solaris/java.html.

-Xss<size>

Specify the size of stack for each new Java thread. The default Java thread stack size is

512KB. This flag is appropriate for programs that have small thread stack size

requirements and/or create several thousand threads, potentially running out of virtual

memory. Program threads that overflow the allocated stack will receive

java.lang.StackOverFlowException.

-Xverbosegc<options> (HP-specific option)

Prints out detailed information about the spaces within the Java Heap before and after

garbage collection.

The syntax of the option is:

-Xverbosegc[:help]|[0|1][:file=[stdout|stderr|<filename>]]

:help prints this message.