java - Requested Bean function generating error -

i've developed spring application overrides setterinjection on constructor injection. getter function generating error.

book.java      package com.abc.xyz;     public class book {    private string name;       public string getname() {           return name;    }       public void setname(string name) {         this.name = name;     }     public book(string name)     {         this.name=name;     }  }  spring.xml:     <?xml version="1.0" encoding="utf-8"?>  <beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/ 

2001/xmlschema-instance" xsi:schemalocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

  <bean id="bookbean" class="com.abc.xyz.book">         <property name="name" value="abcd">    </property>        <constructor-arg value="efgh"></constructor-arg>     </bean>     </beans>    clientapp.java     package com.abc.xyz;     import org.springframework.context.applicationcontext;  import org.springframework.context.support.classpathxmlapplicationcontext;      public class clientapp { 

applicationcontext context=new classpathxmlap
licationcontext("spring.xml"); book book=(book) context.getbean("bookbean"); book.getname();

}