'**New certpath constraint: jdkCA** In the `java.security` file, an additional constraint named "jdkCA" is added to the `jdk.certpath.disabledAlgorithms` property. This constraint prohibits the specified algorithm only if the algorithm is used in a certificate chain that terminates at a marked trust anchor in the lib/security/cacerts keystore. If the jdkCA constraint is not set, then all chains using the specified algorithm are restricted. jdkCA may only be used once in a DisabledAlgorithm expression. Example: To apply this constraint to SHA-1 certificates, include the following: ```SHA1 jdkCA```