On 'sun4u' platforms, a consistent error message is issued, if memory 
requirements cannot be satisfied at JVM startup time.
On 'sun4v' platforms, various error messages appear. The process 
may even be aborted and throw a 'hs_err_pid.log' and a 'core' file.

1. sun4v platform
-----------------
Various error messages appear. The process may even be aborted.

# uname -a
SunOS t1000 5.10 Generic_141444-09 sun4v sparc SUNW,SPARC-Enterprise-T1000
# swap -s
total: 553440k bytes allocated + 135408k reserved = 688848k used, 12651296k available
#


# /jdk1.6.0_23/bin/java -server -Xms3920m -version
java version "1.6.0_23"
Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
Java HotSpot(TM) Server VM (build 19.0-b09, mixed mode)
#

# /jdk1.6.0_23/bin/java -server -Xms3922m -version
Error occurred during initialization of VM
java.lang.OutOfMemoryError: unable to create new native thread
#


# /jdk1.6.0_23/bin/java -server -Xms3925m -version
#
# A fatal error has been detected by the Java Runtime Environment:
#
# java.lang.OutOfMemoryError: requested 65536 bytes for E in /BUILD_AREA/jdk6_23/hotspot/src/share/vm/utilities/taskqueue.hpp. Out of swap space?#
#  Internal Error (allocation.inline.hpp:39), pid=2352, tid=2
#  Error: E in /BUILD_AREA/jdk6_23/hotspot/src/share/vm/utilities/taskqueue.hpp
#
# JRE version: 6.0_23-b05
# Java VM: Java HotSpot(TM) Server VM (19.0-b09 mixed mode solaris-sparc )
# An error report file with more information is saved as:
# //hs_err_pid2352.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#
Abort
#

# /jdk1.6.0_23/bin/java -server -Xms3930m -version
#
# A fatal error has been detected by the Java Runtime Environment:
#
# java.lang.OutOfMemoryError: Cannot create GC thread. Out of system resources.
#
#  Internal Error (gcTaskThread.cpp:38), pid=2325, tid=2
#  Error: Cannot create GC thread. Out of system resources.
#
# JRE version: 6.0_23-b05
# Java VM: Java HotSpot(TM) Server VM (19.0-b09 mixed mode solaris-sparc )
# An error report file with more information is saved as:
# //hs_err_pid2325.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#
Abort
#

# /jdk1.6.0_23/bin/java -server -Xms3950m -version
Error occurred during initialization of VM
Could not reserve space for ObjectStartArray
#

2. sun4u platform
-----------------
A consistent error message is issued.

% uname -a
SunOS sunblade 5.10 Generic_120011-14 sun4u sparc SUNW,Sun-Blade-1000
% swap -s
total: 2010376k bytes allocated + 386224k reserved = 2396600k used, 5417152k available
%


% /jdk1.6.0_23/bin/java -server -Xms3940m -version
java version "1.6.0_23"
Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
Java HotSpot(TM) Server VM (build 19.0-b09, mixed mode)
%
% /jdk1.6.0_23/bin/java -server -Xms3950m -version
Error occurred during initialization of VM
Could not reserve enough space for the card marking array
%
% /jdk1.6.0_23/bin/java -server -Xms3980m -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
%