[ERROR] Failed to execute goal org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2ddl (default-cli) on project [название maven проекта]: Execution default-cli of goal org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2ddl failed: [PersistenceUnit: [название модуля]] class or package not found: [название данного ентиты, имплементирующего интерфейс, который находится в модуле Б] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2ddl (default-cli) on project [название модуля с DAO]: Execution default-cli of goal org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2ddl failed: [PersistenceUnit: [название модуля с DAO]] class or package not found
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2ddl failed: [PersistenceUnit: [название модуля с DAO]] class or package not found
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
	... 19 more
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: [название модуля с DAO]] class or package not found
	at org.hibernate.ejb.Ejb3Configuration.addNamedAnnotatedClasses(Ejb3Configuration.java:1093)
	at org.hibernate.ejb.Ejb3Configuration.addClassesToSessionFactory(Ejb3Configuration.java:871)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:758)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:191)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:253)
	at org.codehaus.mojo.hibernate3.configuration.JPAComponentConfiguration.createConfiguration(JPAComponentConfiguration.java:28)
	at org.codehaus.mojo.hibernate3.configuration.AbstractComponentConfiguration.getConfiguration(AbstractComponentConfiguration.java:51)
	at org.codehaus.mojo.hibernate3.exporter.Hbm2DDLExporterMojo.doExecute(Hbm2DDLExporterMojo.java:87)
	at org.codehaus.mojo.hibernate3.HibernateExporterMojo.execute(HibernateExporterMojo.java:152)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
	... 20 more
Caused by: [название данного ентиты, имплементирующего интерфейс, который находится в модуле Б]
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:270)
	at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:135)
	at org.hibernate.ejb.Ejb3Configuration.classForName(Ejb3Configuration.java:1009)
	at org.hibernate.ejb.Ejb3Configuration.addNamedAnnotatedClasses(Ejb3Configuration.java:1081)
	... 29 more

<plugin>
	<groupId>org.codehaus.mojo</groupId>
	<artifactId>hibernate3-maven-plugin</artifactId>
	<version>2.2</version>
	<configuration>
		<components>
			<component>
				<name>hbm2ddl</name>
				<implementation>jpaconfiguration</implementation>
			</component>
		</components>
		<componentProperties>
			<persistenceunit>[название модуля с DAO]</persistenceunit>
			<outputfilename>schema.ddl</outputfilename>
			<drop>false</drop>
			<create>true</create>
			<export>false</export>
			<format>true</format>
		</componentProperties>
	</configuration>
</plugin>

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0">
	<persistence-unit name="[название maven модуля с DAO]" transaction-type="RESOURCE_LOCAL">
		<class>com.example.entities.Client</class>
		<class>com.example.entities.Order</class>
		<class>com.example.entities.Sequence</class>
		<class>com.example.entities.[название данного ентиты, имплементирующего интерфейс, который находится в модуле Б]</class>
		<provider>org.hibernate.ejb.HibernatePersistence</provider>
		<properties>
			<property name="hibernate.archive.autodetection" value="class, hbm"/>
			<property name="javax.persistence.jdbc.url" value="jdbc:mysql://hostname/db"/>
			<property name="javax.persistence.jdbc.user" value="user"/>
			<property name="javax.persistence.jdbc.password" value="password"/>
			<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
			<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
		</properties>
	</persistence-unit>
</persistence>