Postgresql infinite loop after a hibernate criteria list

I'm stucked with a database problem for several days now. The application hangs after a specific hibernate criteria.list(). Exactly by the following stacktrace:

java.net.SocketInputStream.read(byte[], int, int)
org.postgresql.core.VisibleBufferedInputStream.readMore(int)
org.postgresql.core.VisibleBufferedInputStream.ensureBytes(int)
org.postgresql.core.VisibleBufferedInputStream.read()
org.postgresql.core.PGStream.ReceiveChar()
org.postgresql.core.v3.QueryExecutorImpl.processResults(ResultHandler, int)
org.postgresql.core.v3.QueryExecutorImpl.execute(Query, ParameterList, ResultHandler, int, int, int)
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(Query, ParameterList, int)
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(int)
org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery()
org.hibernate.internal.CriteriaImpl.list()

After some researches and tests I found that the problem is not a blocking query, but a query that is executed forever.

It's a java spring application with the following sessionFactory and transaction manager configuration:

<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="org.postgresql.Driver" />
    <property name="url" value="jdbc:postgresql://localhost:5432/cablewatch" />
    <property name="username" value="username" />
    <property name="password" value="password" />
</bean>

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="packagesToScan" value="com.myapp.domain" /> 
    <property name="configLocation" value="/WEB-INF/hibernate.cfg.xml" />
</bean>

<tx:annotation-driven transaction-manager="transactionManager" />

<bean id="transactionManager"
    class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />

The underlying database is PostgreSQL and here is the current hibernate configuration

<hibernate-configuration>
    <session-factory>       
        <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>

        <property name="hbm2ddl.auto">none</property>
        <property name="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory</property>
        <property name="hibernate.cache.use_second_level_cache">true</property>
        <property name="cache.use_query_cache">true</property>

        <property name="hibernate.transaction.factory_class">
        org.hibernate.transaction.JDBCTransactionFactory</property>
        <property name="show_sql">false</property>
        <property name="format_sql">true</property>
        <property name="use_sql_comments">false</property>
        <property name="order_updates">true</property>
    </session-factory>
</hibernate-configuration>

The critical area in the code is:

private void fillEmptyNames() throws CablewatchException {
    List<Device> devicesList = deviceDao.getDevices();
    if (devicesList != null) {
        for (Device device : devicesList {
            String name = deviceDao.getDeviceName(device.getModule().getObjectIdentifier(), device.getSubrack(), device.getSlot());
    ...
        }
    }
}

The application hangs on the second dao function "getDeviceName". which is implemented as follow:

@Transactional(timeout=30)
public String getDeviceName(long moduleId, int subrackNr, int slotNr) throws CablewatchException {
    Criteria criteria = sessionFactory.getCurrentSession().createCriteria(Device.class).add(Restrictions.eq("module.objectIdentifier", moduleId)).add(Restrictions.eq("subrack",subrackNr)).add(Restrictions.eq("slot",slotNr)).addOrder(Order.desc("objectIdentifier")).setMaxResults(1);

    List<Device> devicesList = criteria.list();

    if (devicesList != null && !devicesList.isEmpty() && devicesList.get(0) instanceof Device) {
        Device device = devicesList.get(0);
        return device.getName();
    }
    return null;
}

Also a detail I'm confronted with is that the same passage works fine under Windows, so currently the problem is only happening on Linux.

Thanks in advance.