diff --git a/src/xtd.core/CMakeLists.txt b/src/xtd.core/CMakeLists.txt
index ec97b7dc141..3f0eaf14ea4 100644
--- a/src/xtd.core/CMakeLists.txt
+++ b/src/xtd.core/CMakeLists.txt
@@ -1076,6 +1076,7 @@ add_sources(
   src/xtd/type_object.cpp
   src/xtd/uri.cpp
   src/xtd/uri_format_exception.cpp
+  src/xtd/uri_template_match_exception.cpp
   src/xtd/string.cpp
   src/xtd/version.cpp
   src/xtd/collections/key_not_found_exception.cpp
diff --git a/src/xtd.core/include/xtd/uri_template_match_exception.h b/src/xtd.core/include/xtd/uri_template_match_exception.h
index cf777aac7f9..20f94971775 100644
--- a/src/xtd.core/include/xtd/uri_template_match_exception.h
+++ b/src/xtd.core/include/xtd/uri_template_match_exception.h
@@ -20,63 +20,22 @@ namespace xtd {
     /// @brief Create a new instance of class uri_template_match_exception
     /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
     /// @remarks Message is set with the default message associate to the exception.
-    explicit uri_template_match_exception(const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(default_message(), stack_frame) {}
+    explicit uri_template_match_exception(const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current());
     /// @brief Create a new instance of class uri_template_match_exception
     /// @param message Message string associate to the exception.
     /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, stack_frame) {}
+    explicit uri_template_match_exception(const std::optional<xtd::string>& message, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current());
     /// @brief Create a new instance of class uri_template_match_exception
     /// @param message Message string associate to the exception.
-    /// @param error Error code associate to the exception.
-    /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const std::error_code& error, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, error, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
-    /// @param message Message string associate to the exception.
-    /// @param help_link Help link string associate to the exception.
-    /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const xtd::string& help_link, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, help_link, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
-    /// @param message Message string associate to the exception.
-    /// @param error Error code associate to the exception.
-    /// @param help_link Help link string associate to the exception.
-    explicit uri_template_match_exception(const xtd::string& message, const std::error_code& error, const xtd::string& help_link, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, error, help_link, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
     /// @param inner_exception The exception that is the cause of the current exception.
     /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    /// @remarks Message is set with the default message associate to the exception.
-    explicit uri_template_match_exception(const std::exception& inner_exception, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(default_message(), inner_exception, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
-    /// @param message Message string associate to the exception.
-    /// @param inner_exception The exception that is the cause of the current exception.
-    /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const std::exception& inner_exception, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, inner_exception, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
-    /// @param message Message string associate to the exception.
-    /// @param inner_exception The exception that is the cause of the current exception.
-    /// @param error Error code associate to the exception.
-    /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const std::exception& inner_exception, const std::error_code& error, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, inner_exception, error, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
-    /// @param message Message string associate to the exception.
-    /// @param inner_exception The exception that is the cause of the current exception.
-    /// @param help_link Help link string associate to the exception.
-    /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const std::exception& inner_exception, const xtd::string& help_link, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, inner_exception, help_link, stack_frame) {}
-    /// @brief Create a new instance of class uri_template_match_exception
-    /// @param message Message string associate to the exception.
-    /// @param inner_exception The exception that is the cause of the current exception.
-    /// @param error Error code associate to the exception.
-    /// @param help_link Help link string associate to the exception.
-    /// @param stack_frame (optional) Contains current stack frame about member name, file path and  line number in the file where the exception is occurred. Typically  xtd::diagnostics::stack_frame::current().
-    explicit uri_template_match_exception(const xtd::string& message, const std::exception& inner_exception, const std::error_code& error, const xtd::string& help_link, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : system_exception(message, inner_exception, error, help_link, stack_frame) {}
+    template<typename exception_t>
+    uri_template_match_exception(const std::optional<xtd::string>& message, const exception_t& inner_exception, const xtd::diagnostics::stack_frame& stack_frame = xtd::diagnostics::stack_frame::current()) : xtd::system_exception(message, inner_exception, stack_frame) {}
     /// @}
     
     /// @cond
     uri_template_match_exception(const uri_template_match_exception&) = default;
     uri_template_match_exception& operator =(const uri_template_match_exception&) = default;
     /// @endcond
-    
-  private:
-    const char* default_message() const noexcept {return "System error."_t;}
   };
 }
diff --git a/src/xtd.core/src/xtd/uri_template_match_exception.cpp b/src/xtd.core/src/xtd/uri_template_match_exception.cpp
new file mode 100644
index 00000000000..c92a038ba96
--- /dev/null
+++ b/src/xtd.core/src/xtd/uri_template_match_exception.cpp
@@ -0,0 +1,11 @@
+#include "../../include/xtd/uri_template_match_exception.h"
+#include "../../include/xtd/literals.h"
+
+using namespace xtd;
+using namespace xtd::diagnostics;
+
+uri_template_match_exception::uri_template_match_exception(const stack_frame& stack_frame) : system_exception(std::nullopt, stack_frame) {
+}
+
+uri_template_match_exception::uri_template_match_exception(const std::optional<xtd::string>& message, const xtd::diagnostics::stack_frame& stack_frame) : system_exception(message, stack_frame) {
+}
diff --git a/tests/xtd.core.unit_tests/CMakeLists.txt b/tests/xtd.core.unit_tests/CMakeLists.txt
index 0f1bd7dd2e7..16d179ac964 100644
--- a/tests/xtd.core.unit_tests/CMakeLists.txt
+++ b/tests/xtd.core.unit_tests/CMakeLists.txt
@@ -219,6 +219,7 @@ add_sources(
   src/xtd/tests/uri_host_name_type_tests.cpp
   src/xtd/tests/uri_kind_tests.cpp
   src/xtd/tests/uri_partial_tests.cpp
+  src/xtd/tests/uri_template_match_exception_tests.cpp
   src/xtd/tests/uri_tests.cpp
   src/xtd/tests/ustring_tests.cpp
   src/xtd/tests/version_tests.cpp
diff --git a/tests/xtd.core.unit_tests/src/xtd/tests/uri_template_match_exception_tests.cpp b/tests/xtd.core.unit_tests/src/xtd/tests/uri_template_match_exception_tests.cpp
new file mode 100644
index 00000000000..c12cec15cbf
--- /dev/null
+++ b/tests/xtd.core.unit_tests/src/xtd/tests/uri_template_match_exception_tests.cpp
@@ -0,0 +1,263 @@
+#include <xtd/uri_template_match_exception>
+#include <xtd/argument_exception>
+#include <xtd/environment>
+#include <xtd/nullopt>
+#include <xtd/io/path>
+#include <xtd/reflection/assembly>
+#include <xtd/tunit/assert>
+#include <xtd/tunit/string_assert>
+#include <xtd/tunit/test_class_attribute>
+#include <xtd/tunit/test_method_attribute>
+
+using namespace xtd;
+using namespace xtd::io;
+using namespace xtd::reflection;
+using namespace xtd::tunit;
+
+namespace xtd::tests {
+  class test_class_(uri_template_match_exception_tests) {
+    inline static bool stack_trace_enabled = false;
+    inline static std::locale previous_locale;
+    static void test_initialize_(test_initialize) {
+      previous_locale = std::locale::global(std::locale("en_US.UTF-8"));
+      stack_trace_enabled = uri_template_match_exception::enable_stack_trace();
+      uri_template_match_exception::enable_stack_trace(false);
+    }
+    
+    static void test_cleanup_(test_cleanup) {
+      std::locale::global(previous_locale);
+      uri_template_match_exception::enable_stack_trace(stack_trace_enabled);
+    }
+    
+    void test_method_(default_constructor) {
+      auto e = uri_template_match_exception {};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::is_not_empty(e.stack_trace());
+      assert::is_not_empty(e.get_last_stack_frame().get_file_name());
+      assert::is_not_zero(e.get_last_stack_frame().get_file_line_number());
+      assert::is_not_empty(e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error.", e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(default_constructor_with_stack_frame) {
+      auto stack_frame = xtd::diagnostics::stack_frame::current();
+      auto e = uri_template_match_exception {stack_frame};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::are_equal(stack_frame.to_string(), e.stack_trace());
+      assert::are_equal(stack_frame.get_file_name(), e.get_last_stack_frame().get_file_name());
+      assert::are_equal(stack_frame.get_file_line_number(), e.get_last_stack_frame().get_file_line_number());
+      assert::are_equal(stack_frame.get_method(), e.get_last_stack_frame().get_method());
+      assert::are_equal("xtd::uri_template_match_exception : System error." + environment::new_line() + stack_frame.to_string(), e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_nullopt_message) {
+      auto e = uri_template_match_exception {nullopt};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::is_not_empty(e.stack_trace());
+      assert::is_not_empty(e.get_last_stack_frame().get_file_name());
+      assert::is_not_zero(e.get_last_stack_frame().get_file_line_number());
+      assert::is_not_empty(e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error.", e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_nullopt_message_and_stack_frame) {
+      auto stack_frame = xtd::diagnostics::stack_frame::current();
+      auto e = uri_template_match_exception {nullopt, stack_frame};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::are_equal(stack_frame.to_string(), e.stack_trace());
+      assert::are_equal(stack_frame.get_file_name(), e.get_last_stack_frame().get_file_name());
+      assert::are_equal(stack_frame.get_file_line_number(), e.get_last_stack_frame().get_file_line_number());
+      assert::are_equal(stack_frame.get_method(), e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error." + environment::new_line() + stack_frame.to_string(), e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_empty_message) {
+      auto e = uri_template_match_exception {""};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::is_empty(e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::is_not_empty(e.stack_trace());
+      assert::is_not_empty(e.get_last_stack_frame().get_file_name());
+      assert::is_not_zero(e.get_last_stack_frame().get_file_line_number());
+      assert::is_not_empty(e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception", e.to_string());
+      assert::are_equal("xtd::uri_template_match_exception", e.what());
+    }
+    
+    void test_method_(constructor_with_message_empty_and_stack_frame) {
+      auto stack_frame = xtd::diagnostics::stack_frame::current();
+      auto e = uri_template_match_exception {"", stack_frame};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::is_empty(e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::are_equal(stack_frame.to_string(), e.stack_trace());
+      assert::are_equal(stack_frame.get_file_name(), e.get_last_stack_frame().get_file_name());
+      assert::are_equal(stack_frame.get_file_line_number(), e.get_last_stack_frame().get_file_line_number());
+      assert::are_equal(stack_frame.get_method(), e.get_last_stack_frame().get_method());
+      assert::are_equal("xtd::uri_template_match_exception" + environment::new_line() + stack_frame.to_string(), e.to_string());
+      assert::are_equal("xtd::uri_template_match_exception", e.what());
+    }
+    
+    void test_method_(constructor_with_message) {
+      auto e = uri_template_match_exception {"System error."};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::is_not_empty(e.stack_trace());
+      assert::is_not_empty(e.get_last_stack_frame().get_file_name());
+      assert::is_not_zero(e.get_last_stack_frame().get_file_line_number());
+      assert::is_not_empty(e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error.", e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_message_and_stack_frame) {
+      auto stack_frame = xtd::diagnostics::stack_frame::current();
+      auto e = uri_template_match_exception {"System error.", stack_frame};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_null(e.inner_exception());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::are_equal(stack_frame.to_string(), e.stack_trace());
+      assert::are_equal(stack_frame.get_file_name(), e.get_last_stack_frame().get_file_name());
+      assert::are_equal(stack_frame.get_file_line_number(), e.get_last_stack_frame().get_file_line_number());
+      assert::are_equal(stack_frame.get_method(), e.get_last_stack_frame().get_method());
+      assert::are_equal("xtd::uri_template_match_exception : System error." + environment::new_line() + stack_frame.to_string(), e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_nullopt_message_and_inner_exception) {
+      auto inner_exception = argument_exception {};
+      auto e = uri_template_match_exception {nullopt, inner_exception};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_not_null(e.inner_exception());
+      assert::is_instance_of<xtd::argument_exception>(e.inner_exception().value().get());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::is_not_empty(e.stack_trace());
+      assert::is_not_empty(e.get_last_stack_frame().get_file_name());
+      assert::is_not_zero(e.get_last_stack_frame().get_file_line_number());
+      assert::is_not_empty(e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error.", e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_nullopt_message_and_stack_frame_inner_exception) {
+      auto inner_exception = argument_exception {};
+      auto stack_frame = xtd::diagnostics::stack_frame::current();
+      auto e = uri_template_match_exception {nullopt, inner_exception, stack_frame};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_not_null(e.inner_exception());
+      assert::is_instance_of<xtd::argument_exception>(e.inner_exception().value().get());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::are_equal(stack_frame.to_string(), e.stack_trace());
+      assert::are_equal(stack_frame.get_file_name(), e.get_last_stack_frame().get_file_name());
+      assert::are_equal(stack_frame.get_file_line_number(), e.get_last_stack_frame().get_file_line_number());
+      assert::are_equal(stack_frame.get_method(), e.get_last_stack_frame().get_method());
+      assert::are_equal("xtd::uri_template_match_exception : System error." + environment::new_line() + stack_frame.to_string(), e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_message_and_inner_exception) {
+      auto inner_exception = argument_exception {};
+      auto e = uri_template_match_exception {"System error.", inner_exception};
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_not_null(e.inner_exception());
+      assert::is_instance_of<xtd::argument_exception>(e.inner_exception().value().get());
+      assert::are_equal(inner_exception.to_string(), e.inner_exception().value().get().to_string());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::is_not_empty(e.stack_trace());
+      assert::is_not_empty(e.get_last_stack_frame().get_file_name());
+      assert::is_not_zero(e.get_last_stack_frame().get_file_line_number());
+      assert::is_not_empty(e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error.", e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+    
+    void test_method_(constructor_with_message_inner_exception_and_stack_frame) {
+      auto inner_exception = argument_exception {};
+      auto stack_frame = xtd::diagnostics::stack_frame::current();
+      auto e = uri_template_match_exception {"System error.", inner_exception, stack_frame};
+      assert::are_equal("xtd::uri_template_match_exception", e.get_type().full_name());
+      assert::is_empty(e.help_link());
+      assert::are_equal(h_result::COR_E_SYSTEM, e.h_result());
+      assert::are_equal(h_result::h_result_category(), e.error_code().category());
+      assert::are_equal(e.h_result(), e.error_code().value());
+      assert::is_not_null(e.inner_exception());
+      assert::is_instance_of<xtd::argument_exception>(e.inner_exception().value().get());
+      assert::are_equal(inner_exception.to_string(), e.inner_exception().value().get().to_string());
+      assert::are_equal("System error.", e.message());
+      assert::are_equal(path::get_file_name(assembly::get_executing_assembly().location()), e.source());
+      assert::are_equal(stack_frame.to_string(), e.stack_trace());
+      assert::are_equal(stack_frame.get_file_name(), e.get_last_stack_frame().get_file_name());
+      assert::are_equal(stack_frame.get_file_line_number(), e.get_last_stack_frame().get_file_line_number());
+      assert::are_equal(stack_frame.get_method(), e.get_last_stack_frame().get_method());
+      string_assert::starts_with("xtd::uri_template_match_exception : System error." + environment::new_line() + stack_frame.to_string(), e.to_string());
+      assert::are_equal("System error.", e.what());
+    }
+  };
+}