JVMs on some platforms are designed to operate in either 32-bit or 64-bit modes
controlled by a "-d32" or "-d64" parameter passed on the Java command line.
When running with 32-bit or 64-bit versions of the Wrapper,
it is often convenient to have this parameter set automatically.
This parameter has been included in the default
Wrapper configuration file
but is disabled by default for backwards compatibility.
The "-d32" or "-d64" parameters will be set on Mac OSX, FreeBSD, HP-UX, and Solaris platforms.
On other platforms, the parameter is currently ignored
as the standard JVM implementation on those platforms do not expect the "-d32" or "-d64" parameters.
Since Wrapper version 3.5.41 the auto_bits functionality has been disabled for Java 9 and above (the property is ignored).
Deprecated in Java 9, the "-d32" or "-d64" options were removed in Java 10 and caused the Java launcher to fail with a fatal exception.