| Name | Description | Type | Package | Framework |
| CramVersionPolicies | The class provides version-dependant rules and policies for CRAM data. | Class | htsjdk.samtools.cram.common | HtsJDK |
| CramVersions | Class | htsjdk.samtools.cram.common | HtsJDK | |
| IntHashMap | A hash map that uses primitive ints for the key rather than objects. | Class | htsjdk.samtools.cram.common | HtsJDK |
| MutableInt | Class | htsjdk.samtools.cram.common | HtsJDK | |
| Version | A class to represent a version information, 3 number: major, minor and build number. | Class | htsjdk.samtools.cram.common | HtsJDK |