java.sql.SQLException: invalid arguments in call and org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution

Question

I am trying to connect my Oracle database to my project.And I want to do with hibernate.I am new beginner.But I get this error says invalid arguments in call. I have been searching google whole day, but I do not get answer which can solve my problem.Also I have some questions

1) I want to do automatically make my table in oracle by making model class in spring boot.For this I add persistence.xml and application.properties.Do I really need both this file to make my table automatically with model class in spring?Also I have to mention that my project is web application not Hibernate

2)What is benefit of making database with Hibernate?

My pom.xml

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.clojure/java.jdbc -->
    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.2.12.Final</version>
    </dependency>


    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>


    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>


    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>


    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>5.2.3.Final</version>
    </dependency>


    <dependency>
        <groupId>com.oracle</groupId>
        <artifactId>ojdbc14</artifactId>
        <version>10.2.0.4.0</version>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

My application.properties

spring.datasource.url=jdbc:oracle:thin:@//localhost:1521/XE
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.data-username=GULSHAN
spring.datasource.data-password=
spring.jpa.hibernate.ddl-auto=create
spring.jpa.database-platform=org.hibernate.dialect.Oracle10gDialect

And my persistence.xml

    <?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
             http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
    <persistence-unit name="org.hibernate.tutorial.jpa">

        <properties>
            <property name="hibernate.connection.driver_class" value="oracle.jdbc.driver.OracleDriver"/>
            <property name="hibernate.connection.url" value="jdbc:oracle:thin:@//localhost:1521/XE"/>
            <property name="hibernate.connection.autocommit" value="false"/>
            <property name="hibernate.connection.username" value="gulshan"/>
            <property name="hibernate.connection.password" value="pass"/>
            <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
            <property name="hibernate.connection.CharSet" value="utf8"/>
            <property name="hibernate.connection.characterEncoding" value="utf8"/>
            <property name="hibernate.connection.useUnicode" value="true"/>
            <property name="hibernate.show_sql" value="true"/>
            <property name="hibernate.hbm2ddl.auto" value="update"/>
        </properties>
    </persistence-unit>
</persistence>

Thanks anyway.