Special characters(Apoostrophe) in username

Hi
weblogic server (10.2) does not seem to allow users to be created with an apostrophe(') in the user name. If a user already exists in the database , the SQL Authenticator refuses the login as well (even if the password is correct).
is there any workaround/patch for this problem?
Also what characters are not allowed?
regards
deepak

java.sql.SQLException: [Security:090798]Invalid characters found in input d'ann_caron
     at weblogic.security.providers.authentication.shared.DBMSUtils.verifyInputCharactersName(DBMSUtils.java:332)
     at weblogic.security.providers.authentication.shared.DBMSSQLRuntimeQueryImpl.executeUserPassword(DBMSSQLRuntimeQueryImpl.java:71)
     at weblogic.security.providers.authentication.shared.DBMSAtnLoginModuleImpl.authenticateDBMS(DBMSAtnLoginModuleImpl.java:667)
     at weblogic.security.providers.authentication.shared.DBMSAtnLoginModuleImpl.login(DBMSAtnLoginModuleImpl.java:271)
Some code validates that the login name doesn't have apostrophe (which is silly because the authenticators use PreparedStatement).
regards
deepak

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> The company I work with uses creates datasource names
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