Use Arrays.toString

The exception message gets a hashcode similar error message.
It's better to call Arrays.toString(array) instead of array.toString.

• https://github.com/wildfly/wildfly/blob/24.0.0.Final/iiop-openjdk/src/main/java/org/wildfly/iiop/openjdk/naming/jndi/CNCtx.java#L675
• https://github.com/wildfly/wildfly/blob/24.0.0.Final/iiop-openjdk/src/main/java/org/wildfly/iiop/openjdk/naming/jndi/CNCtx.java#L935