RFR: 7178922 : (props) re-visit how os.name is determined on Mac (original) (raw)

Sergey Bylokhov Sergey.Bylokhov at oracle.com
Tue Nov 13 17:05:22 PST 2012

So many efforts was done to unify this style across the jdk http://monaco.sfbay.sun.com/detail.jsf?cr=7147461 http://monaco.sfbay.sun.com/detail.jsf?cr=7130404 changesets http://hg.openjdk.java.net/jdk8/awt/jdk/rev/77b35c5c4b95 http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/970cbbba54b0 http://closedjdk.us.oracle.com/hsx/hotspot-rt/hotspot/test/closed/rev/40505e5a55e8

Note that official documentation from apple suggest: contains("OS X") https://developer.apple.com/library/mac/#technotes/tn2002/tn2110.html

14.11.2012 2:50, Brent Christian wrote:

At present, the JDK port for OS X gets its value for os.name from a JRS function exported by the Apple Java Runtime Support framework.

Historically this has either been "Mac OS X", or "Mac OS X Server", but there have been reports that this could change at any time, e.g. to just "OS X". This would break any app that relies on this property to detect the Mac platform using something like: System.getProperty("os.name").startsWith("Mac"). To ensure compatibility going forward, the os.name System property on Mac should be hard-coded to the value that is expected, "Mac OS X". (FWIW, as of 10.7 Mac OS X Server is no longer a separate edition of the OS). Webrev is here: http://cr.openjdk.java.net/~bchristi/7178922/webrev.0/ Note: the setUnknownOSAndVersion() function is unused following my change, so I went ahead and removed it. Thanks, -Brent

-- Best regards, Sergey.

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