Question

I installed Oracle’s Java on Fedora 17, and I noticed that when using the command java -version it returns this

java version "1.7.0_05"
Java(TM) SE Runtime Environment (build 1.7.0_05-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.1-b03, mixed mode)

Java seems to run the -server option by default. The help text came up as

-server   to select the "server" VM
              The default VM is server,
              because you are running on a server-class machine.

Is there any way to change the default to client?

Answer 1

The default setting is defined in the file jvm.cfg. A content like

-client KNOWN
-server KNOWN

defines the client as the default.

-server KNOWN
-client KNOWN

sets the server as the default.

Source: http://www.rgagnon.com/javadetails/java-0566.html

jvm.cfg location

Unknown Mac OS X version:

/Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home/jre/lib/jvm.cfg

Mac OS X version 10.9 without installing JDK:

/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/lib/jvm.cfg

Mac OS X version 10.9 with installed JDK version 1.8.0_u92:

/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/Home/jre/lib/jvm.cfg

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^{You can find your jvm.cfg from the command line (Terminal.app) using the command $ locate /jvm.cfg. You might need to update your locate database first, using the command: $ sudo /usr/libexec/locate.updatedb}