Abstract: A method for resource management, including: identifying a resource map corresponding to a thread stack of a first thread; reading, in the resource map and by a computer processor, a bit value referencing an address of a first binary value in the thread stack; determining, based on the bit value and by the computer processor, that the first binary value corresponds to a managed resource; reading, by the computer processor, a resource identifier section of the first binary value after determining that the first binary value corresponds to the managed resource; determining a type of the managed resource based on the resource identifier section; interpreting, based on the type of the managed resource, at least a portion of a payload of the first binary value as a reference to a resource address of the managed resource in a resource storage; and accessing the managed resource using the reference.

Abstract: A method for a compiler includes receiving, by the compiler and from an interpreter, a representation of a code section having a control path that changes the representation. The representation has profiling data, and the profiling data has a threshold. The method further includes performing, by the compiler and based on the threshold, a partial evaluation of the interpreter executing the representation, compiling, by the compiler, a machine code of the representation, with the control path replaced by a deoptimization point during the compilation of the machine code, triggering the deoptimization point during execution of the machine code, and returning execution to the interpreter based on the triggering.

Abstract: A method for a compiler includes receiving, by the compiler and from an interpreter, a representation of a code section having a control path that changes the representation. The representation has profiling data, and the profiling data has a threshold. The method further includes performing, by the compiler and based on the threshold, a partial evaluation of the interpreter executing the representation, compiling, by the compiler, a machine code of the representation, with the control path replaced by a deoptimization point during the compilation of the machine code, triggering the deoptimization point during execution of the machine code, and returning execution to the interpreter based on the triggering.

Abstract: A method for resource management, including: identifying a resource map corresponding to a thread stack of a first thread; reading, in the resource map and by a computer processor, a bit value referencing an address of a first binary value in the thread stack; determining, based on the bit value and by the computer processor, that the first binary value corresponds to a managed resource; reading, by the computer processor, a resource identifier section of the first binary value after determining that the first binary value corresponds to the managed resource; determining a type of the managed resource based on the resource identifier section; interpreting, based on the type of the managed resource, at least a portion of a payload of the first binary value as a reference to a resource address of the managed resource in a resource storage; and accessing the managed resource using the reference.

Abstract: A method for managing an object watchpoint during a garbage collection cycle, including identifying an object having a field, where the object is associated with an original object location, where the field is associated with an original field location, and where the object and the field are located in a memory heap of a virtual machine memory, setting, within a debugger, the object watchpoint on the original field location, where the object watchpoint is a memory trap associated with the object, determining, after a relocation of the object by a garbage collector (GC), a new object location associated with the object, determining a new field location of the field based on the new object location, and setting, within the debugger, the object watchpoint on the new field location.

Abstract: A method for managing an object watchpoint during a garbage collection cycle, including identifying an object having a field, where the object is associated with an original object location, where the field is associated with an original field location, and where the object and the field are located in a memory heap of a virtual machine memory, setting, within a debugger, the object watchpoint on the original field location, where the object watchpoint is a memory trap associated with the object, determining, after a relocation of the object by a garbage collector (GC), a new object location associated with the object, determining a new field location of the field based on the new object location, and setting, within the debugger, the object watchpoint on the new field location.