Java program is very " concerned about" JDK version matches between, if I provide the class file, and you use different versions of the JDK, an error occurs. So, please test my program, must use JDK1.6 version.

jsp
...\.DS_Store
__MACOSX
........\jsp
........\...\._.DS_Store
jsp\pctest
...\......\.DS_Store
__MACOSX\jsp\pctest
........\...\......\._.DS_Store
jsp\pctest\_notes
...\......\......\dwsync.xml
__MACOSX\jsp\pctest\_notes
........\...\......\......\._dwsync.xml
........\...\......\.__notes
jsp\pctest\admin
...\......\.....\_notes
...\......\.....\......\dwsync.xml
__MACOSX\jsp\pctest\admin
........\...\......\.....\_notes
........\...\......\.....\......\._dwsync.xml
........\...\......\.....\.__notes
jsp\pctest\admin\admin_knowadd.jsp
__MACOSX\jsp\pctest\admin\._admin_knowadd.jsp
jsp\pctest\admin\admin_knowdel.jsp
__MACOSX\jsp\pctest\admin\._admin_knowdel.jsp
jsp\pctest\admin\admin_knowpoint.jsp
__MACOSX\jsp\pctest\admin\._admin_knowpoint.jsp
jsp\pctest\admin\admin_main.jsp
__MACOSX\jsp\pctest\admin\._admin_main.jsp
jsp\pctest\admin\admin_mn_test.jsp
__MACOSX\jsp\pctest\admin\._admin_mn_test.jsp
jsp\pctest\admin\admin_mn_test_add.jsp
__MACOSX\jsp\pctest\admin\._admin_mn_test_add.jsp
jsp\pctest\admin\admin_mn_test_del.jsp
__MACOSX\jsp\pctest\admin\._admin_mn_test_del.jsp
jsp\pctest\admin\admin_subject.jsp
__MACOSX\jsp\pctest\admin\._admin_subject.jsp
jsp\pctest\admin\admin_subjectadd.jsp
__MACOSX\jsp\pctest\admin\._admin_subjectadd.jsp
jsp\pctest\admin\admin_subjectdel.jsp
__MACOSX\jsp\pctest\admin\._admin_subjectdel.jsp
jsp\pctest\admin\AdminAdd.jsp
__MACOSX\jsp\pctest\admin\._AdminAdd.jsp
jsp\pctest\admin\AdminAdd1.jsp
__MACOSX\jsp\pctest\admin\._AdminAdd1.jsp
jsp\pctest\admin\adminIndex.jsp
__MACOSX\jsp\pctest\admin\._adminIndex.jsp
jsp\pctest\admin\AdminMod.jsp
__MACOSX\jsp\pctest\admin\._AdminMod.jsp
jsp\pctest\admin\common
...\......\.....\......\_notes
...\......\.....\......\......\dwsync.xml
__MACOSX\jsp\pctest\admin\common
........\...\......\.....\......\_notes
........\...\......\.....\......\......\._dwsync.xml
........\...\......\.....\......\.__notes
jsp\pctest\admin\common\input.htc
__MACOSX\jsp\pctest\admin\common\._input.htc
jsp\pctest\admin\common\popwin.js
__MACOSX\jsp\pctest\admin\common\._popwin.js
jsp\pctest\admin\common\style.css
__MACOSX\jsp\pctest\admin\common\._style.css
........\...\......\.....\._common
jsp\pctest\admin\editor
...\......\.....\......\deal.jsp
__MACOSX\jsp\pctest\admin\editor
........\...\......\.....\......\._deal.jsp
jsp\pctest\admin\editor\edit.css
__MACOSX\jsp\pctest\admin\editor\._edit.css
jsp\pctest\admin\editor\edit.htm
__MACOSX\jsp\pctest\admin\editor\._edit.htm
jsp\pctest\admin\editor\images
...\......\.....\......\......\aleft.gif
__MACOSX\jsp\pctest\admin\editor\images
........\...\......\.....\......\......\._aleft.gif
jsp\pctest\admin\editor\images\aright.gif
__MACOSX\jsp\pctest\admin\editor\images\._aright.gif
jsp\pctest\admin\editor\images\bold.gif
__MACOSX\jsp\pctest\admin\editor\images\._bold.gif
jsp\pctest\admin\editor\images\bullist.gif
__MACOSX\jsp\pctest\admin\editor\images\._bullist.gif
jsp\pctest\admin\editor\images\center.gif
__MACOSX\jsp\pctest\admin\editor\images\._center.gif
jsp\pctest\admin\editor\images\copy.gif
__MACOSX\jsp\pctest\admin\editor\images\._copy.gif
jsp\pctest\admin\editor\images\cut.gif
__MACOSX\jsp\pctest\admin\editor\images\._cut.gif
jsp\pctest\admin\editor\images\delete.gif
__MACOSX\jsp\pctest\admin\editor\images\._delete.gif
jsp\pctest\admin\editor\images\fgcolor.gif
__MACOSX\jsp\pctest\admin\editor\images\._fgcolor.gif
jsp\pctest\admin\editor\images\help.gif
__MACOSX\jsp\pctest\admin\editor\images\._help.gif
jsp\pctest\admin\editor\images\hr.gif
__MACOSX\jsp\pctest\admin\editor\images\._hr.gif
jsp\pctest\admin\editor\images\img.gif
__MACOSX\jsp\pctest\admin\editor\images\._img.gif
jsp\pctest\admin\editor\images\indent.gif
__MACOSX\jsp\pctest\admin\editor\images\._indent.gif
jsp\pctest\admin\editor\images\italic.gif

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