使用HDFS java api 创建文件出错。详解大数据

//创建文件核心代码	 
public static void createNewHDFSFile(String toCreateFilePath, String content) throws IOException 
	{ 
		Configuration config = new Configuration(); 
		config.set("hadoop.job.ugi", "Administrator,supergroup"); 
		FileSystem hdfs = FileSystem.get(config); 
		 
		FSDataOutputStream os = hdfs.create(new Path(toCreateFilePath)); 
 
		os.write(content.getBytes("UTF-8")); 
		 
		os.close(); 
		 
		hdfs.close(); 
	} 

Exception in thread "main" java.io.IOException: Cannot run program "chmod": CreateProcess error=2, ????????? 
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:459) 
	at org.apache.hadoop.util.Shell.runCommand(Shell.java:149) 
	at org.apache.hadoop.util.Shell.run(Shell.java:134) 
	at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:286) 
	at org.apache.hadoop.util.Shell.execCommand(Shell.java:354) 
	at org.apache.hadoop.util.Shell.execCommand(Shell.java:337) 
	at org.apache.hadoop.fs.RawLocalFileSystem.execCommand(RawLocalFileSystem.java:481) 
	at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:473) 
	at org.apache.hadoop.fs.FilterFileSystem.setPermission(FilterFileSystem.java:280) 
	at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:372) 
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:484) 
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:465) 
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:372) 
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:364) 
	at com.geoway.hadoop.example.HadoopFSOperations.createNewHDFSFile(HadoopFSOperations.java:54) 
	at com.geoway.hadoop.example.HadoopFSOperations.main(HadoopFSOperations.java:15) 
Caused by: java.io.IOException: CreateProcess error=2, ????????? 
	at java.lang.ProcessImpl.create(Native Method) 
	at java.lang.ProcessImpl.<init>(ProcessImpl.java:81) 
	at java.lang.ProcessImpl.start(ProcessImpl.java:30) 
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:452) 
	... 15 more