我的bsd是 6.0 装的是 http://www.freebsdfoundation.org/downloads/java.shtml 还有装 /usr/ports/java/jdk15-doc/ 但是在我要compile的时候 使用javac出现下面这个 orz 请问有人知道是怎麽回事吗？ 我没多做什麽设定.. -XX:+UseMembar o_0? javac: invalid flag: -XX:+UseMembar Usage: javac <options> <source files> where possible options include: -g Generate all debugging info -g:none Generate no debugging info -g:{lines,vars,source} Generate only some debugging info -nowarn Generate no warnings -verbose Output messages about what the compiler is doing -deprecation Output source locations where deprecated APIs are used -classpath <path> Specify where to find user class files -cp <path> Specify where to find user class files -sourcepath <path> Specify where to find input source files -bootclasspath <path> Override location of bootstrap class files -extdirs <dirs> Override location of installed extensions -endorseddirs <dirs> Override location of endorsed standards path -d <directory> Specify where to place generated class files -encoding <encoding> Specify character encoding used by source files -source <release> Provide source compatibility with specified release -target <release> Generate class files for specific VM version -version Version information -help Print a synopsis of standard options -X Print a synopsis of nonstandard options -J<flag> Pass <flag> directly to the runtime system --

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