src/hotspot/share/classfile/javaClasses.cpp

*** 2631,2640 ****
--- 2631,2677 ----
      int line_number = Backtrace::get_line_number(method, bci);
      java_lang_StackTraceElement::set_lineNumber(element(), line_number);
    }
  }
  
+ void java_lang_StackTraceElement::decode(Handle mirror, methodHandle method, int bci, Symbol*& methodname, Symbol*& filename, int& line_number) {
+   int method_id = method->orig_method_idnum();
+   int cpref = method->name_index();
+   decode(mirror, method_id, method->constants()->version(), bci, cpref, methodname, filename, line_number);
+ }
+ 
+ void java_lang_StackTraceElement::decode(Handle mirror, int method_id, int version, int bci, int cpref, Symbol*& methodname, Symbol*& filename, int& line_number) {
+   // Fill in class name
+   InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror()));
+   Method* method = holder->method_with_orig_idnum(method_id, version);
+ 
+   // The method can be NULL if the requested class version is gone
+   Symbol* sym = (method != NULL) ? method->name() : holder->constants()->symbol_at(cpref);
+ 
+   // Fill in method name
+   methodname = sym;
+ 
+   if (!version_matches(method, version)) {
+     // If the method was redefined, accurate line number information isn't available
+     filename = NULL;
+     line_number = -1;
+   } else {
+     // Fill in source file name and line number.
+     // Use a specific ik version as a holder since the mirror might
+     // refer to a version that is now obsolete and no longer accessible
+     // via the previous versions list.
+     holder = holder->get_klass_version(version);
+     assert(holder != NULL, "sanity check");
+     Symbol* source = holder->source_file_name();
+     if (ShowHiddenFrames && source == NULL) {
+       source = vmSymbols::unknown_class_name();
+     }
+     filename = source;
+     line_number = Backtrace::get_line_number(method, bci);
+   }
+ }
+ 
  Method* java_lang_StackFrameInfo::get_method(Handle stackFrame, InstanceKlass* holder, TRAPS) {
    HandleMark hm(THREAD);
    Handle mname(THREAD, stackFrame->obj_field(_memberName_offset));
    Method* method = (Method*)java_lang_invoke_MemberName::vmtarget(mname());
    // we should expand MemberName::name when Throwable uses StackTrace