Impala JDBC connector got stuck

Question

I'm trying to connect to my Impala cluster. But It gets stuck (didn't stop running) and shows no error and no result.

Here is my code:

public class testJDBC {
static final String JDBC_IMPALA_URL = "jdbc:impala://192.168.70.14:21050;AuthMech=3;UID=root;PWD=P13Ak!ix;UseSa‌​sl=0;UseNativeQuery=1;LogLevel=6;LogPath=f:\\Users\\joaquin\\Desktop\\Libros\\logs-driver";
static final String JDBC_DRIVER_IMPALA ="com.cloudera.impala.jdbc4.Driver";

public static void main(String[] args) throws Exception {

    System.out.println(getDolarFromImpala("2016-12-26"));
}

public static double getDolarFromImpala(String date)  {
    double dolar = 0.0;
    try {
        Class.forName(JDBC_DRIVER_IMPALA);
        String sql = "SELECT valor FROM asigra.dolar where date ='"+date+"'";
        System.out.println("start");
        Connection con = DriverManager.getConnection(JDBC_IMPALA_URL);//,IMPALA_USER,IMPALA_PASSWORD);

        Statement stmt = con.createStatement();
        ResultSet rs = stmt.executeQuery(sql);

        while(rs.next()){
            dolar = rs.getDouble("valor");                                          
        }

        stmt.close();
        con.close();
        System.out.println("end");

    }
    catch(SQLException se){
          //Handle errors for JDBC
          se.printStackTrace();

    }
    catch(Exception e){
          //Handle errors for Class.forName
          e.printStackTrace();
    }
    System.out.println(dolar);
    return dolar;
}}

Because it didn't showed me any error I set the logging to DEBUG and here is the result: ImpalaJDBC_diver.log

dic 28 11:54:49.861 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIDriver.getProperty(20): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIEnvironment.DSIEnvironment(com.cloudera.impala.impala.core.ImpalaJDBCDriver@300ffa5d): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.hivecommon.core.HiveJDBCEnvironment.HiveJDBCEnvironment(com.cloudera.impala.impala.core.ImpalaJDBCDriver@300ffa5d): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.hivecommon.core.HiveJDBCEnvironment.createConnection(): +++++ enter +++++

impala_connection_0.log

dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.DSIConnection(com.cloudera.impala.hivecommon.core.HiveJDBCEnvironment@254989ff): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(101, Variant[type: TYPE_WSTRING, value: ImpalaJDBC]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(139, Variant[type: TYPE_WSTRING, value: User]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(22, Variant[type: TYPE_WSTRING, value: Impala]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(58, Variant[type: TYPE_WSTRING, value: `]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(66, Variant[type: TYPE_UINT16, value: -1]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(68, Variant[type: TYPE_UINT16, value: -1]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(76, Variant[type: TYPE_UINT16, value: -1]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(81, Variant[type: TYPE_UINT16, value: -1]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(83, Variant[type: TYPE_UINT16, value: -1]): +++++ enter +++++
dic 28 11:54:49.876 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.setProperty(80, Variant[type: TYPE_WSTRING, value: N]): +++++ enter +++++
dic 28 11:54:49.908 TRACE 1 com.cloudera.impala.dsi.core.impl.DSIConnection.registerWarningListener(com.cloudera.impala.jdbc.common.SWarningListener@446cdf90): +++++ enter +++++
dic 28 11:54:49.908 TRACE 1 com.cloudera.impala.hivecommon.core.HiveJDBCConnection.updateConnectionSettings(): +++++ enter +++++
dic 28 11:54:49.908 TRACE 1 com.cloudera.impala.jdbc.common.CommonCoreUtils.logConnectionFunctionEntrance({AuthMech=Variant[type: TYPE_WSTRING, value: 3], ConnSchema=Variant[type: TYPE_WSTRING, value: NULL], DatabaseType=Variant[type: TYPE_WSTRING, value: Impala], HiveServerType=Variant[type: TYPE_WSTRING, value: 2], Host=Variant[type: TYPE_WSTRING, value: 192.168.70.14], LogLevel=Variant[type: TYPE_WSTRING, value: 6], LogPath=Variant[type: TYPE_WSTRING, value: f:\Users\joaquin\Desktop\Libros\logs-driver], Port=Variant[type: TYPE_WSTRING, value: 21050], PWD=Variant[type: TYPE_WSTRING, value: P13Ak!ix], UID=Variant[type: TYPE_WSTRING, value: root], UseNativeQuery=Variant[type: TYPE_WSTRING, value: 1], UseSa‌​sl=Variant[type: TYPE_WSTRING, value: 0]}, "Major Version: 2", "Minor Version: 5", "Hot Fix Version: 16", "Build Number: 1018", "java.vendor:Oracle Corporation", "java.version:1.8.0_45", "os.arch:amd64", "os.name:Windows 8", "os.version:6.2", "Runtime.totalMemory:126877696", "Runtime.maxMemory:1879048192", "Runtime.avaialableProcessors:4", URLClassLoader.getURLs(): /F:/Users/joaquin/Documents/New_folder/test%20impala%20jdbc/bin/, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/ImpalaJDBC4.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/hive_metastore.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/hive_service.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/ql.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/TCLIServiceClient.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/libfb303-0.9.0.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/libthrift-0.9.0.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/log4j-1.2.14.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/slf4j-api-1.5.11.jar, /F:/Users/joaquin/Documents/impala_jdbc_2.5.16.1018/2.5.16.1018/Cloudera_ImpalaJDBC4_2.5.16.1018/ImpalaJDBC4/slf4j-log4j12-1.5.11.jar): +++++ enter +++++

I don't undestand any of this stuff so I have no clue what the error could be.

Please help!

Regards, Joaquín