What's New in Cloudera Manager 4.5.1
A number of bugs have been fixed: see Known Issues Fixed In Release 4.5.1 for details.
Cloudera Manager 4.5.1 works with Oracle JDK 7 (JDK 1.7) It supports CDH 4.2 running with JDK 7. See Oracle JDK Support in the CDH4.2.0 Release Notes for restrictions concerning CDH 4.2.0 support of JDK7.
See CDH4 Requirements and Supported Versions, JDK specifications for details on the certified versions of the JDKs.