problem with signing in JDK 1.8.5

[Storing saeed123123]
keytool error: java.io.FileNotFoundException: saeed123123 (Access is denied)
java.io.FileNotFoundException: saeed123123 (Access is denied)
        at java.io.FileOutputStream.open0(Native Method)
        at java.io.FileOutputStream.open(FileOutputStream.java:270)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:101)
        at sun.security.tools.keytool.Main.doCommands(Main.java:1141)
        at sun.security.tools.keytool.Main.run(Main.java:340)
        at sun.security.tools.keytool.Main.main(Main.java:333)