In [[IBM WebSphere Application Server]] and [[Oracle WebLogic Server]], a file with extension ''jks'' serves as keystore.
The [[Java Development Kit]] maintains a [[Certificatecertificate Authorityauthority|CA]] keystore in folder jre/lib/security/cacerts. JDKs provide a tool named ''keytool''<ref>[http://docs.oracle.com/javase/6/docs/technotes/tools/solaris/keytool.html keytool - Key and Certificate Management Tool]</ref> to manipulate the keystore. ''keytool'' has no functionality to extract the private key out of the keystore, but this is possible with third-party tools like jksExportKey,<ref>[http://miteff.com/jksexportkey jksExportKey - A free tool for exporting private keys out of the keystore as standalone files]</ref> CERTivity,<ref>[http://www.edulib.com/products/keystores-manager/ CERTivity - A multi-platform visual tool for managing keystores]</ref> Portecle<ref>[http://portecle.sourceforge.net Portecle - Portecle is an open-source GUI application for creating, managing and examining keystores.]</ref> and KeyStore Explorer.<ref>[http://keystore-explorer.sourceforge.net KeyStore Explorer - An open source GUI replacement for the Java command-line utilities keytool, jarsigner and jadtool.]</ref>
