What third-party dependencies does the Maverick Synergy API have

Lee Painter

The core implementation of the Maverick Synergy SSH API has no third-party dependencies. However, there are a number of extension modules that provide additional features that do have dependencies on third-party, open-source libraries. This article outlines the extensions and the dependencies each has, with the current version and licensing information.

Modules With No Dependencies

The following modules have no third-party dependencies


Modules with Third-Party Dependencies


This module provides tight integration with the BouncyCastle JCE. In order to use this module, you must execute the following code before any other calls to the Maverick Synergy SSH API. 


The boolean parameter passed indicates a value for 'makeDefault' which is used to configure some or all algorithms (see below)

By including this module, and executing the above statement a number of configuration changes occur. 

  1. If the BouncyCastle API is not installed as a SecurityProvider then it is installed using Security.addProvider
  2. The ECDSA algorithm name is changed to "ECDSA" instead of "EC"
  3. If makeDefault is true BC will be used for all algorithms that the API supports, otherwise, it will just be made the default for Diffie Hellman key exchange
GroupId/ArtifactId Version License  Notes
org.bouncycastle/bcprov-jdk15on 1.64 BouncyCastle (MIT Style)  
org.bouncycastle/bcpkix-jdk15on 1.64 BouncyCastle (MIT Style)  


Similar to the maverick-bc, this module provides enhanced support for the BC FIPS-certified JCE. It performs the same function as maverick-bc and thus the same configuration changes and the following must be called:

GroupId/ArtifactId Version License
org.bc/bc-fips 1.0.2 BouncyCastle (MIT Style)
org.bc/bcpkix-fips 1.0.2 BouncyCastle (MIT Style)


Including this module enables Zlib compression.

GroupId/ArtifactId Version License
com.jcraft/jzlib 1.1.2 BSD


This module enables the creation of interactive shells in the Maverick Synergy Server API. With this API you can write commands that can be executed within a virtual shell.


Version License  Notes
commons-cli 1.3.1 Apache 2.0 This dependency is only required if using ShellCommandWithOptions class.
jline 3.11.0 Apache 2.0  



This module provides an AbstractFile implementation that enables the creation of virtual file systems, with the ability to mount other file system types to paths within the virtual file system. 


Version License  Notes
org.apache/commons-vfs2 2.6 Apache 2.0  Only required when using VFSFileFactory / VFSFile
org.apache/commons-logging 1.2 Apache 2.0  Only required when using VFSFileFactory / VFSFile

* Further dependencies may be required depending upon the VFS providers you want to use in commons-vfs2


This module provides a complete private key agent for holding keys in memory. Compatible with OpenSSH agent and PuTTY's Pageant.


Version License  Notes
jna-platform 5.3.1 Apache 2.0  
junixsocket 2.3.4 Apache 2.0