jberet-core logging database credentials

[DaScheid]

When the database connection to the job-repository cannot be established (using the JdbcRepository), then an exception is thrown:

jsr352/jberet-core/src/main/java/org/jberet/repository/JdbcRepository.java

Line 1115 in 87dd820

throw BatchMessages.MESSAGES.failToObtainConnection(e, dbUrl, dbProperties);

The exception message is constructed using the 'dbProperties':

jsr352/jberet-core/src/main/java/org/jberet/_private/BatchMessages.java

Line 103 in 87dd820

@Message(id = Message.INHERIT, value = "Failed to obtain connection from %s, %s")

The 'dbProperties' might contain username and password for the database-connection. So if this exception is logged, the resulting log might looks like this:
"JBERET000622 Failed to obtain connection from <jdbc-url>, {password=<password_in_plain_text>, user=<username_in_plain_text>}"

Therefore, database-credentails might be logged unobfuscated as plain text to the console and are visible for everyone that has access to it - which might be a security risk.