Java 导致FileKey出现IOException的FileHandler

我从PLSQL Dev调用一个java类。My Logger.java使用字符串C:\Logs\mylog.TXT调用FileHandler

fileHndlr = new FileHandler(logFileName, false);

结果是：

Exception in thread "Root Thread" java.lang.Error: java.io.IOException: sjonfile_fileinfo fais to get fileinfo
    at sun.nio.ch.FileKey.create(FileKey.java:41)
    at sun.nio.ch.FileChannelImpl$SharedFileLockTable.<init>(FileChannelImpl.java:1037)
    at sun.nio.ch.FileChannelImpl.fileLockTable(FileChannelImpl.java:806)
    at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:867)
    at java.nio.channels.FileChannel.tryLock(FileChannel.java:962)
    at java.util.logging.FileHandler.openFiles(FileHandler.java:394)
    at java.util.logging.FileHandler.<init>(FileHandler.java:268)
    at xxx.logger.Logger.logSetup(Logger.java:194)
Caused by: java.io.IOException: sjonfile_fileinfo fais to get fileinfo
    at sun.nio.ch.FileKey.init(Native Method)
    at sun.nio.ch.FileKey.create(FileKey.java:39)
    ... 9 more

2 CreateFile操作时出现共享冲突错误

Date & Time:    2015.03.02. 9:23:20
Event Class:    File System
Operation:  CreateFile
Result: SHARING VIOLATION
Path:   C:\Logs\...\filename.lck
TID:    2708
Duration:   0.0000284
Desired Access: Read Attributes, Delete
Disposition:    Open
Options:    Non-Directory File, Open Reparse Point
Attributes: n/a
ShareMode:  Read, Write, Delete
AllocationSize: n/a 

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需要使用sysdba用户执行以下操作：

GRANT READ,WRITE ON DIRECTORY userDirectory TO userSchema;

Execute dbms_java.grant_permission('userSchema', 'java.io.FilePermission', 'userDirectory/*', 'read,write,execute,delete');

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我假设堆栈转储仍在继续-生成此消息时会发生什么：sjonfile\u fileinfo fais to get fileinfo？我在jdk:c:\Java\jdk1.7.0\u 71\jre\lib\rt.jar\sun\nio\ch\FileKey.class中找到了sun.nio.ch.FileKey.class，但尚未找到字符串sjonfile\u fileinfo。知道在哪里搜索吗？堆栈转储会这样结束吗？没别的了？

GRANT READ,WRITE ON DIRECTORY userDirectory TO userSchema;

Execute dbms_java.grant_permission('userSchema', 'java.io.FilePermission', 'userDirectory/*', 'read,write,execute,delete');