java - Netbeans Startup option 'sun.java2d.opengl=true' not recognised -

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i'm trying tweak performance of netbeans on rather old pc using. i've followed of suggestions here 1 regarding

sun.java2d.opengl=true

fails, giving

unknown option -dsun.java2d.opengl=true

i'm using linux wattos distro version 5, java 1.7 , netbeans 7.1.2. has option become obsolete above page seems refer java 5?

are there additional steps need enable netbeans use opengl?

** additional info **

i realised should have used option

-j-dsun.java2d.opengl=true

although crash when try starting netbeans now. i've submitted crash report i'll wait , see happens , post result here.

check with

java -version

what version of java you're using. extension supported in sun jvm, , quite few distros come openjdk default.


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