Method and system for automated, static instrumentation for applications designed for execution in environments with restricted resources, like mobile devices or TV set top boxes

A computer-implemented system for instrumenting a mobile application executing in a restricted execution environment of a mobile device, comprising:

• an instrumentation configuration repository in the mobile application that stores replacement code for use by the mobile application;
• a computer processor;
• a storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by the processor,
• perform processing of:
• a runtime interface configured to load executable instructions from an application code library;
• an instrumentor instrumented in the mobile application prior to execution of the mobile application and executed by the computer processor of the mobile device concurrently with execution of the mobile application, wherein the instrumentor detects loading of executable instructions for execution by the mobile application;
• and
• in response to detecting loading of executable instructions, evaluates metadata from the executable instructions in relation to the replacement code;
• wherein the runtime interface cooperates with the instrumentor during runtime of the mobile application to retrieve the replacement code from the instrumentation configuration repository, replace the executable instructions with the replacement code and load the replacement code into the restricted execution environment of the mobile device, and
• wherein the instrumentor replaces the executable instructions with the replacement code by swapping a first method in the executable instructions with a second method from the instrumentation configuration repository without swapping name of the first method with name of the second method.