Are you using sun-java? http://wiki.processing.org/w/Supported_Platforms#Linux

i installed Java JDK 1.6 inside processing-1.1 folder

stil the same error message

What's showing up in the Processing Console area? There should be a complete error message there.

at Processing Console area:

cannot parse error text: unexpected bracket: -nowarn

is the message on the red background, (which is grey normal, before shows the error)
and bottom of this at black background

unexpected bracket: -nowarn

this time i installed JDK 1.5, and i opened Processing from the terminal,
and after ./processing  command, processing opens regularly
but terminal gives another command-error below, which is

/usr/share/themes/Human/gtk-2.0/gtkrc:51: error: lexical error or unexpected token, expected valid token

and every time i try to run some code, terminal gives message

unexpected bracket: -nowarn