/usr/jdk/jdk1.6.0/bin/java -d64 -version showing error but /usr/jdk/jdk1.6.0/jre/bin/java -d64 -version is OK

# pkginfo | grep SUNWj6
system SUNWj6cfg JDK 6.0 Host Config. (1.6.0)
system SUNWj6dev JDK 6.0 Dev. Tools (1.6.0)
system SUNWj6dvx JDK 6.0 64-bit Dev. Tools (1.6.0)
system SUNWj6rt JDK 6.0 Runtime Env. (1.6.0)
system SUNWj6rtx JDK 6.0 64-bit Runtime Env. (1.6.0)
# /usr/jdk/jdk1.6.0/bin/java -d64 -version
execve(): No such file or directory
Error trying to exec /usr/jdk/instances/jdk1.6.0/bin/amd64/java.
Check if file exists and permissions are set correctly.
Failed to start a 64-bit JVM process from a 32-bit JVM.
Either 64-bit processes are not supported by this platform
or the 64-bit components have not been installed.
# isainfo
amd64 i386
# /usr/jdk/jdk1.6.0/bin/java -version
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b11)
Java HotSpot(TM) Server VM (build 1.6.0-ea-b11, mixed mode)
# /usr/jdk/jdk1.6.0/jre/bin/java -d64 -version
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b11)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0-ea-b11, mixed mode)
# showrev
Hostname: sunfire002
Hostid: 0
Release: 5.10
Kernel architecture: i86pc
Application architecture: i386
Hardware provider:
Domain: jlabs.SFBay.Sun.COM
Kernel version: SunOS 5.10 s10_70
###@###.### 11/4/04 21:44 GM

"java" is missing from /usr/jdk/instances/jdk1.6.0/bin/amd64
That is why it's complaining "64-bit components have not been installed"
###@###.### 11/4/04 21:58 GMT