为什么无法将证书加入cacerts,明明加入了，可是最后有显示找不到什么文件？

C:\Program Files\Java\jdk1.6.0_21\bin>keytool -import -keystore "C:\Program File
s\Java\jdk1.6.0_20\jre\lib\security\cacerts" -alias "javacrazyer"  -file "C:\key
s\javacrazyer.crt" -storepass changeit
Owner: CN=javacrazyerkey.sso.com, OU=pengjavacrazyerkey.sso.com, O=dandiandenglu
, L=beijing, ST=zhongguo, C=ZH
Issuer: CN=javacrazyerkey.sso.com, OU=pengjavacrazyerkey.sso.com, O=dandiandengl
u, L=beijing, ST=zhongguo, C=ZH
Serial number: 526742b1
Valid from: Wed Oct 23 11:29:53 CST 2013 until: Tue Jan 21 11:29:53 CST 2014
Certificate fingerprints:
         MD5:  B3:DF:31:B2:A2:57:5B:EB:36:A1:87:E5:BE:48:D5:C5
         SHA1: 7A:6F:CB:1E:E0:A8:12:62:16:70:F7:6E:CB:1D:CB:94:1F:8D:6D:D9
         Signature algorithm name: SHA1withRSA
         Version: 3
Trust this certificate? [no]:  y
Certificate was added to keystore
keytool error: java.io.FileNotFoundException: C:\Program Files\Java\jdk1.6.0_20\
jre\lib\security\cacerts (????????????????)javaSSO  CAS