#fixed code
                                @Test
    public void testSendRequest() throws Exception {
        when(mockUrlConnection.getResponseCode()).thenReturn(HttpURLConnection.HTTP_OK);

        try (DefaultConnection conn = new DefaultConnection(mockHttpConnection) {
            @Override
            public String getNonce() {
                return null;
            }
        }) {
            conn.sendRequest(requestUrl, session);
        }

        verify(mockUrlConnection).setRequestMethod("GET");
        verify(mockUrlConnection).setRequestProperty("Accept", "application/json");
        verify(mockUrlConnection).setRequestProperty("Accept-Charset", "utf-8");
        verify(mockUrlConnection).setRequestProperty("Accept-Language", "ja-JP");
        verify(mockUrlConnection).setDoOutput(false);
        verify(mockUrlConnection).connect();
        verify(mockUrlConnection).getResponseCode();
        verify(mockUrlConnection, atLeast(0)).getHeaderFields();
        verifyNoMoreInteractions(mockUrlConnection);
    }
#vulnerable code 
                                @Test
    public void testSendRequest() throws Exception {
        when(mockUrlConnection.getResponseCode()).thenReturn(HttpURLConnection.HTTP_OK);

        try (DefaultConnection conn = new DefaultConnection(mockHttpConnection)) {
            conn.sendRequest(requestUrl, session);
        }

        verify(mockUrlConnection).setRequestMethod("GET");
        verify(mockUrlConnection).setRequestProperty("Accept", "application/json");
        verify(mockUrlConnection).setRequestProperty("Accept-Charset", "utf-8");
        verify(mockUrlConnection).setRequestProperty("Accept-Language", "ja-JP");
        verify(mockUrlConnection).setDoOutput(false);
        verify(mockUrlConnection).connect();
        verify(mockUrlConnection).getResponseCode();
        verify(mockUrlConnection, atLeast(0)).getHeaderFields();
        verifyNoMoreInteractions(mockUrlConnection);
    } 
                            #location 7 
                            #vulnerability type RESOURCE_LEAK