src/hotspot/share/oops/klassVtable.cpp

rev 49271 : 8199852: Print more information about class loaders in LinkageErrors.

*** 502,520 ****
                SystemDictionary::check_signature_loaders(signature, target_loader,
                                                          super_loader, true,
                                                          CHECK_(false));
              if (failed_type_symbol != NULL) {
                const char* msg = "loader constraint violation for class %s: when selecting "
!                 "overriding method \"%s\" the class loader (instance of %s) of the "
!                 "selected method's type %s, and the class loader (instance of %s) for its super "
                  "type %s have different Class objects for the type %s used in the signature";
!               char* curr_class = klass->name()->as_C_string();
!               char* sig = target_method()->name_and_sig_as_C_string();
!               const char* loader1 = SystemDictionary::loader_name(target_loader());
!               char* sel_class = target_klass->name()->as_C_string();
!               const char* loader2 = SystemDictionary::loader_name(super_loader());
!               char* super_class = super_klass->name()->as_C_string();
                char* failed_type_name = failed_type_symbol->as_C_string();
                size_t buflen = strlen(msg) + strlen(curr_class) + strlen(sig) +
                  strlen(loader1) + strlen(sel_class) + strlen(loader2) +
                  strlen(super_class) + strlen(failed_type_name);
                char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
--- 502,520 ----
                SystemDictionary::check_signature_loaders(signature, target_loader,
                                                          super_loader, true,
                                                          CHECK_(false));
              if (failed_type_symbol != NULL) {
                const char* msg = "loader constraint violation for class %s: when selecting "
!                 "overriding method %s the class loader %s of the "
!                 "selected method's type %s, and the class loader %s for its super "
                  "type %s have different Class objects for the type %s used in the signature";
!               const char* curr_class = klass->external_name();
!               const char* sig = target_method()->name_and_sig_as_C_string();
!               const char* loader1 = java_lang_ClassLoader::describe_external(target_loader());
!               const char* sel_class = target_klass->external_name();
!               const char* loader2 = java_lang_ClassLoader::describe_external(super_loader());
!               const char* super_class = super_klass->external_name();
                char* failed_type_name = failed_type_symbol->as_C_string();
                size_t buflen = strlen(msg) + strlen(curr_class) + strlen(sig) +
                  strlen(loader1) + strlen(sel_class) + strlen(loader2) +
                  strlen(super_class) + strlen(failed_type_name);
                char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
*** 1232,1252 ****
                                                        method_holder_loader,
                                                        interface_loader,
                                                        true, CHECK);
            if (failed_type_symbol != NULL) {
              const char* msg = "loader constraint violation in interface itable"
!               " initialization for class %s: when selecting method \"%s\" the"
!               " class loader (instance of %s) for super interface %s, and the class"
!               " loader (instance of %s) of the selected method's type, %s have"
                " different Class objects for the type %s used in the signature";
!             char* current = _klass->name()->as_C_string();
!             char* sig = m->name_and_sig_as_C_string();
!             const char* loader1 = SystemDictionary::loader_name(interface_loader());
!             char* iface = InstanceKlass::cast(interf)->name()->as_C_string();
!             const char* loader2 = SystemDictionary::loader_name(method_holder_loader());
!             char* mclass = target()->method_holder()->name()->as_C_string();
!             char* failed_type_name = failed_type_symbol->as_C_string();
              size_t buflen = strlen(msg) + strlen(current) + strlen(sig) +
                strlen(loader1) + strlen(iface) + strlen(loader2) + strlen(mclass) +
                strlen(failed_type_name);
              char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
              jio_snprintf(buf, buflen, msg, current, sig, loader1, iface,
--- 1232,1252 ----
                                                        method_holder_loader,
                                                        interface_loader,
                                                        true, CHECK);
            if (failed_type_symbol != NULL) {
              const char* msg = "loader constraint violation in interface itable"
!               " initialization for class %s: when selecting method %s the"
!               " class loader %s for super interface %s, and the class"
!               " loader %s of the selected method's type, %s have"
                " different Class objects for the type %s used in the signature";
!             const char* current = _klass->external_name();
!             const char* sig = m->name_and_sig_as_C_string();
!             const char* loader1 = java_lang_ClassLoader::describe_external(interface_loader());
!             const char* iface = InstanceKlass::cast(interf)->external_name();
!             const char* loader2 = java_lang_ClassLoader::describe_external(method_holder_loader());
!             const char* mclass = target()->method_holder()->external_name();
!             const char* failed_type_name = failed_type_symbol->as_C_string();
              size_t buflen = strlen(msg) + strlen(current) + strlen(sig) +
                strlen(loader1) + strlen(iface) + strlen(loader2) + strlen(mclass) +
                strlen(failed_type_name);
              char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
              jio_snprintf(buf, buflen, msg, current, sig, loader1, iface,