JAVA-41259 Moved code of article jpa-error-java-lang-string-cannot-be-cast from java-jpa to java-jpa-4

Author: Bipinkumar27

persistence-modules/java-jpa-4/README.md

@@ -10,3 +10,4 @@ This module contains articles about the Java Persistence API (JPA) in Java.
 - [How to Clone a JPA Entity](https://www.baeldung.com/java-jpa-clone-entity)
 - [A Guide to Stored Procedures with JPA](https://www.baeldung.com/jpa-stored-procedures)
 - [JPA @Basic Annotation](https://www.baeldung.com/jpa-basic-annotation)
+- [Fixing the JPA error “java.lang.String cannot be cast to Ljava.lang.String;”](https://www.baeldung.com/jpa-error-java-lang-string-cannot-be-cast)

persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/stringcast/Message.java renamed to persistence-modules/java-jpa-4/src/main/java/com/baeldung/jpa/stringcast/Message.java

@@ -209,5 +209,22 @@
 			<property name="show_sql" value="true" />
 			<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
 		</properties>
+		
+	</persistence-unit>	<persistence-unit name="jpa-h2">
+		<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
+		<class>com.baeldung.jpa.stringcast.Message</class>
+		<exclude-unlisted-classes>true</exclude-unlisted-classes>
+		<properties>
+			<property name="jakarta.persistence.jdbc.driver" value="org.h2.Driver" />
+			<property name="jakarta.persistence.jdbc.url" value="jdbc:h2:mem:test;MODE=LEGACY" />
+			<property name="jakarta.persistence.jdbc.user" value="sa" />
+			<property name="jakarta.persistence.jdbc.password" value="" />
+			<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
+			<property name="hibernate.hbm2ddl.auto" value="create-drop" />
+			<property name="show_sql" value="true" />
+			<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
+		</properties>
 	</persistence-unit>
+	
+	
 </persistence>

persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/stringcast/QueryExecutor.java renamed to persistence-modules/java-jpa-4/src/main/java/com/baeldung/jpa/stringcast/QueryExecutor.java

@@ -5,7 +5,6 @@ This module contains articles about the Java Persistence API (JPA) in Java.
 ### Relevant Articles
 
 - [A Guide to SqlResultSetMapping](https://www.baeldung.com/jpa-sql-resultset-mapping)
-- [Fixing the JPA error “java.lang.String cannot be cast to Ljava.lang.String;”](https://www.baeldung.com/jpa-error-java-lang-string-cannot-be-cast)
 - [JPA Entity Graph](https://www.baeldung.com/jpa-entity-graph)
 - [JPA Support for java.time Types](https://www.baeldung.com/jpa-java-time)
 - [Converting Between LocalDate and SQL Date](https://www.baeldung.com/java-convert-localdate-sql-date)