it seems to be a java crash log file.
I am guessing that this means a Java applett has crashed, and written a log file, so that you can see what made it go belly up, and correct the error.
But that would only be helpful, to you, if you had written the java thing that crashed. But what crashed, and why, and what you need to do i have no idea.
Perhaps click here and install then run spybot search and destroy, adaware, a squared. perhaps it is a badly written bit of malware. Info on it on the rest of the net very scarce.
this is all that i found. click here