Getting "java.lang.UnsupportedOperationException: Not supported by BasicDataSource" when trying to use a JDBC DataSource in JBoss Fuse

Issue

We deploy two OSGi bundles.
In one bundle we define a JDBC DataSource using commons-dbcp and export it as an OSGI service.
In the other bundle we import the JDBC DataSource and try to use it in a Camel route.

The DataSource definition of the first bundle is similar to this example:

<bean id="MSSqlServer" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName">
    <value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value>
  </property>
  <property name="url">
    <value>jdbc:sqlserver://localhost;databaseName=test</value>
  </property>
</bean>
<service id="service-MSSqlServer" interface="javax.sql.DataSource"   ref="MSSqlServer">
  <service-properties>
    <entry key="osgi.jndi.service.name" value="jdbc/MSSqlServer" />
    <entry key="datasource.name" value="MSSQLServer" />
  </service-properties>
</service>

However at runtime the call to DataSource.getConnection() fails with

java.lang.UnsupportedOperationException: Not supported by BasicDataSource
    at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1062)
    at org.tranql.connector.jdbc.AbstractLocalDataSourceMCF.getPhysicalConnection(AbstractLocalDataSourceMCF.java:72)
    at org.tranql.connector.jdbc.AbstractLocalDataSourceMCF.createManagedConnection(AbstractLocalDataSourceMCF.java:66)
    at org.apache.geronimo.connector.outbound.MCFConnectionInterceptor.getConnection(MCFConnectionInterceptor.java:48)
    at org.apache.geronimo.connector.outbound.LocalXAResourceInsertionInterceptor.getConnection(LocalXAResourceInsertionInterceptor.java:41)
    at org.apache.geronimo.connector.outbound.SinglePoolConnectionInterceptor.internalGetConnection(SinglePoolConnectionInterceptor.java:70)
    at org.apache.geronimo.connector.outbound.AbstractSinglePoolConnectionInterceptor.getConnection(AbstractSinglePoolConnectionInterceptor.java:80)
    at org.apache.geronimo.connector.outbound.TransactionEnlistingInterceptor.getConnection(TransactionEnlistingInterceptor.java:49)
    at org.apache.geronimo.connector.outbound.TransactionCachingInterceptor.getConnection(TransactionCachingInterceptor.java:109)
    at org.apache.geronimo.connector.outbound.ConnectionHandleInterceptor.getConnection(ConnectionHandleInterceptor.java:43)
    at org.apache.geronimo.connector.outbound.TCCLInterceptor.getConnection(TCCLInterceptor.java:39)
    at org.apache.geronimo.connector.outbound.ConnectionTrackingInterceptor.getConnection(ConnectionTrackingInterceptor.java:66)
    at org.apache.geronimo.connector.outbound.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:81)
    at org.tranql.connector.jdbc.TranqlDataSource.getConnection(TranqlDataSource.java:62)
    at org.apache.karaf.jdbc.internal.JdbcServiceImpl.info(JdbcServiceImpl.java:368)
    at Proxyea9f8073_24bc_4547_8b35_91ac2a100ae5.info(Unknown Source)
    at org.apache.karaf.jdbc.command.DataSourcesCommand.doExecute(DataSourcesCommand.java:44)
    at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:38)
    at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)
    at sun.reflect.GeneratedMethodAccessor759.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)[:1.8.0_91]
    at java.lang.reflect.Method.invoke(Unknown Source)[:1.8.0_91]
    at org.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)[19:org.apache.aries.proxy.impl:1.0.5]
    at org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)[19:org.apache.aries.proxy.impl:1.0.5]
    at org.apache.karaf.shell.console.commands.$BlueprintCommand1836742640.execute(Unknown Source)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:477)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:403)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:92)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.karaf.shell.console.jline.Console.run(Console.java:197)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]
    at org.apache.karaf.shell.console.jline.DelayedStarted.run(DelayedStarted.java:79)[38:org.apache.karaf.shell.console:2.4.0.redhat-630187]