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JVM Method Invocation

// src/hotspot/share/runtime/javaCalls.hpp
//
// All calls to Java have to go via JavaCalls. Sets up the stack frame
// and makes sure that the last_Java_frame pointers are chained correctly.
//

class JavaCalls: AllStatic {
  static void call_helper(JavaValue* result, const methodHandle& method, JavaCallArguments* args, TRAPS);
 public:
...

References

【超硬核】JVM源码解读:Java方法main在虚拟机上解释执行