Exchange 2007 在使用javamail search（）方法时 接受汉字命令时报A4的错

错误如下：

DEBUG: setDebug: JavaMail version 1.5.0
DEBUG: getProvider() returning javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle]
DEBUG IMAP: mail.imap.fetchsize: 16384
DEBUG IMAP: mail.imap.ignorebodystructuresize: false
DEBUG IMAP: mail.imap.statuscachetimeout: 1000
DEBUG IMAP: mail.imap.appendbuffersize: -1
DEBUG IMAP: mail.imap.minidletime: 10
DEBUG IMAP: trying to connect to host "10.254.xx.xx", port 143, isSSL false
* OK The Microsoft Exchange IMAP4 service is ready.
A0 CAPABILITY
* CAPABILITY IMAP4 IMAP4rev1 AUTH=NTLM AUTH=GSSAPI STARTTLS IDLE NAMESPACE LITERAL+
A0 OK CAPABILITY completed.
DEBUG IMAP: AUTH: NTLM
DEBUG IMAP: AUTH: GSSAPI
DEBUG IMAP: protocolConnect login, host=10.254.xx.xx, user=yanwb@xx.com, password=<non-null>
DEBUG IMAP: AUTHENTICATE NTLM command trace suppressed
DEBUG NTLM: type 1 message: 4E 54 4C 4D 53 53 50 00 01 00 00 00 03 A2 00 00 00 00 00 00 29 00 00 00 09 00 09 00 20 00 00 00 6C 6F 63 61 6C 68 6F 73 74
DEBUG NTLM: type 3 message: 4E 54 4C 4D 53 53 50 00 03 00 00 00 18 00 18 00 74 00 00 00 18 00 18 00 8C 00 00 00 00 00 00 00 40 00 00 00 22 00 22 00 40 00 00 00 12 00 12 00 62 00 00 00 00 00 00 00 A4 00 00 00 01 82 00 00 79 00 61 00 6E 00 77 00 62 00 40 00 43 00 4D 00 53 00 54 00 45 00 53 00 54 00 2E 00 63 00 6F 00 6D 00 6C 00 6F 00 63 00 61 00 6C 00 68 00 6F 00 73 00 74 00 74 C3 1D 76 D0 65 2A 88 17 B9 D7 12 9F 45 DD 1B 31 A0 BE 80 13 E5 F3 CF 91 2C 78 A6 B8 47 7A D6 C0 4A 0A 8D D6 AE B9 20 95 5E DE 4C 01 21 58 7E
DEBUG IMAP: AUTHENTICATE NTLM command result: A1 OK AUTHENTICATE completed.
A2 CAPABILITY
* CAPABILITY IMAP4 IMAP4rev1 AUTH=NTLM AUTH=GSSAPI STARTTLS IDLE NAMESPACE LITERAL+
A2 OK CAPABILITY completed.
DEBUG IMAP: AUTH: NTLM
DEBUG IMAP: AUTH: GSSAPI
DEBUG IMAP: connection available -- size: 1
A3 SELECT INBOX
* 1100 EXISTS
* 0 RECENT
* FLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)
* OK [PERMANENTFLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)] Permanent flags
* OK [UNSEEN 1090] Is the first unseen message
* OK [UIDVALIDITY 1611] UIDVALIDITY value
* OK [UIDNEXT 17682] The next unique identifier value
A3 OK [READ-WRITE] SELECT completed.
A4 SEARCH CHARSET UTF-8 SUBJECT {15+}
我的意思是 ALL
A4 BAD Command Argument Error. 11
javax.mail.MessagingException: A4 BAD Command Argument Error. 11;
  nested exception is:
	com.sun.mail.iap.BadCommandException: A4 BAD Command Argument Error. 11
	at com.sun.mail.imap.IMAPFolder.search(IMAPFolder.java:1881)
	at xx.xx.xx.xx.mail.BaseMailReceiver.searchMail(BaseMailReceiver.java:1375)