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From "Alan Burlison (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3025) NPE when connecting to database with securityMechanism=8
Date Thu, 23 Aug 2007 10:30:34 GMT
NPE when connecting to database with securityMechanism=8
--------------------------------------------------------

                 Key: DERBY-3025
                 URL: https://issues.apache.org/jira/browse/DERBY-3025
             Project: Derby
          Issue Type: Bug
          Components: Security
    Affects Versions: 10.3.1.4
         Environment: Solaris x86
            Reporter: Alan Burlison


If derby.drda.securityMechanism has *not* been set to STRONG_PASSWORD_SUBSTITUTE_SECURITY
and the database is opened with the securityMechanism=8 property set, a NPE is thrown:

// Try opening the database.
Properties props = new Properties();
props.put("securityMechanism", "8");
props.put("user", dbUser);
props.put("password", dbPass);
Connection db = null;
try {
    StringBuilder sb = new StringBuilder("jdbc:derby:");
    sb.append(dbName);
    db = DriverManager.getConnection(sb.toString(), props);
}
    // Handle exception
} 

java.lang.NullPointerException'. [XJ001]
Caused by: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection30.<init>(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection40.<init>(Unknown Source)
        at org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Unknown Source)
        at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
        at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
        at java.sql.DriverManager.getConnection(DriverManager.java:582)
        at java.sql.DriverManager.getConnection(DriverManager.java:154)
        at org.opensolaris.auth.db.DBManager.openDatabase(DBManager.java:152)
        ... 1 more
Caused by: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source)
        ... 16 more
Caused by: java.lang.NullPointerException
        at org.apache.derby.impl.jdbc.authentication.AuthenticationServiceBase.substitutePassword(Unknown
Source)
        at org.apache.derby.impl.jdbc.authentication.BasicAuthenticationServiceImpl.authenticateUser(Unknown
Source)
        at org.apache.derby.impl.jdbc.authentication.AuthenticationServiceBase.authenticate(Unknown
Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(Unknown Source)
        ... 10 more 

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