checklist for 64-bit java on Linux

grep -l 'flags.*\<lm\>' /proc/cpuinfo && (getconf LONG_BIT | grep '64') && java -version
Let's you examine, for example, whether infrastructure folks really provisioned the correct setup. Java 64-bit checklist 1. check if hardware is 64-bit capable by looking for lm flag grep -l 'flags.*\<lm\>' /proc/cpuinfo 2. check if kernel is 64-bit getconf LONG_BIT | grep '64' 3. check if java is 64-bit (simply look for 64-bit in output - if present, then it is, if absent, then it is 32-bit) java -version
Sample Output
/proc/cpuinfo
64
java version "1.6.0_18"
Java(TM) SE Runtime Environment (build 1.6.0_18-b07)
Java HotSpot(TM) 64-Bit Server VM (build 16.0-b13, mixed mode)

0
2012-12-17 16:39:55

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