Software-defined microservices

A method of managing one or more controlled immutable method area (CIMA) methods executable by a process virtual machine, the method comprising:

• initializing, within memory under control of the process virtual machine, at least one CIMA;
• loading a first method into the at least one CIMA, the first method being a CIMA method;
• loading a second method into the memory outside the at least one CIMA;
• executing a microservice configured to call the second method and the CIMA method;
• receiving a first request to update the CIMA method;
• determining whether the first request was received from a trusted endpoint;
• aborting processing of the first request in response to determining that the first request was received from an endpoint other than the trusted endpoint;
• and
• receiving a second request to update the CIMA method, the second request specifying an updated version of the CIMA method;
• determining whether the second request was received from the trusted endpoint;
• and
• loading the updated version of the CIMA method into the at least one CIMA in response to determining that the second request was received from the trusted endpoint.

A non-transient computer readable medium encoded with instructions that when executed by one or more processors cause a process for managing one or more controlled immutable method area (CIMA) methods to be carried out, the process comprising:

• initializing, within memory under control of a process virtual machine, at least one CIMA;
• loading a first method into the at least one CIMA, the first method being a CIMA method;
• loading a second method into the memory outside the at least one CIMA;
• executing a microservice configured to call the second method and the CIMA method;
• receiving a first request to update the CIMA method;
• determining whether the first request was received from a trusted endpoint;
• aborting processing of the first request in response to determining that the first request was received from an endpoint other than the trusted endpoint;
• receiving a second request to update the CIMA method, the second request specifying an updated version of the CIMA method;
• determining whether the second request was received from the trusted endpoint;
• and
• loading the updated version of the CIMA method into the at least one CIMA in response to determining that the second request was received from the trusted endpoint.