src/share/vm/interpreter/linkResolver.cpp

*** 316,326 ****
    return vtable_index;
  }
  
  void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
    InstanceKlass *ik = InstanceKlass::cast(klass());
!   result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name, signature));
  }
  
  void LinkResolver::lookup_polymorphic_method(methodHandle& result,
                                               KlassHandle klass, Symbol* name, Symbol* full_signature,
                                               KlassHandle current_klass,
--- 316,330 ----
    return vtable_index;
  }
  
  void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
    InstanceKlass *ik = InstanceKlass::cast(klass());
! 
!   // Specify 'true' in order to skip default methods when searching the
!   // interfaces.  Function lookup_method_in_klasses() already looked for
!   // the method in the default methods table.
!   result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name, signature, true));
  }
  
  void LinkResolver::lookup_polymorphic_method(methodHandle& result,
                                               KlassHandle klass, Symbol* name, Symbol* full_signature,
                                               KlassHandle current_klass,
*** 1285,1296 ****
--- 1289,1303 ----
      jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s",
                   recv_klass()->external_name(),
                   resolved_klass()->external_name());
      THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
    }
+ 
    // do lookup based on receiver klass
    methodHandle sel_method;
+   // This search must match the linktime preparation search for itable initialization
+   // to correctly enforce loader constraints for interface method inheritance
    lookup_instance_method_in_klasses(sel_method, recv_klass,
              resolved_method->name(),
              resolved_method->signature(), CHECK);
    if (sel_method.is_null() && !check_null_and_abstract) {
      // In theory this is a harmless placeholder value, but