NonStop Server for Java 4.2 Tools Reference

Selects whether the program is to be run in a 32-bit or 64-bit environment.
Note: These options are not valid with NonStop Server for Java 4, which
uses only the 32-bit environment to run Java programs.
Nonstandard Java Options
The following nonstandard options are shown for your convenience.
-Xssn
Sets the thread stack size.
Every thread spawned while a Java program runs has its own stack. This thread stack
is shared by Java program code, any native (JNI) code, and the Java VM code. The
default stack size is either 128 kilobytes (-Xss128k) for TNS/R or 512 kilobytes
(-Xss512k) for TNS/E. You can use this option to increase the stack size if you
experience stack overflow exceptions. The default units for n are bytes; n must be
greater than 1000 bytes. To modify the meaning of n, append either the letter k (or K)
to indicate kilobytes, or the letter m (or M) to indicate megabytes. For example,
–Xss10240 and –Xss10k are equal.
-Xincgc
Specifies using the incremental low-pause garbage collector. This option is supported
but using it can lead to about a 10% decrease in garbage collection performance.
Deviations from Nonstandard Java Options
-Xmsn
Specifies the initial size, in bytes, of the memory-allocation pool. The default value is
implementation specific; the value is about 3.6 megabytes.
Deviations from Nonstandard -XX Java Options
-XX:+UseParallelGC
Specifies a parallel garbage collector. This option is disabled. If you specify this
option, the Java VM exits with the error: -XX:+UseParallelGC option is not
supported on this platform.
-XX:+UseParNewGC
Specifies a parallel garbage collection. This option is disabled. If you specify this
option, the Java VM exits with the error: -XX:+UseParNewGC option is not
supported on this platform.
-XX:+UseAdaptiveSizePolicy
Specifies an adaptive size policy. This option applies only for a parallel collector and,