Put a <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="off" /> in you server.xml.

Put the APR connector some weeks later in your server.xml:

<Connector protocol="org.apache.coyote.http11.Http11AprProtocol"
  port="@HTTPS_PORT@" connectionTimeout="20000" maxHttpHeaderSize="24576"
  maxThreads="250" URIEncoding="UTF-8" bufferSize="4096"
  scheme="https" secure="true" SSLEnabled="true" SSLProtocol="TLSv1"	  
  SSLCipherSuite="HIGH:!ADH" SSLCertificateFile="@SSL_CERT_FILE@"
  SSLCertificateKeyFile="@SSL_CERT_KEY_FILE@" SSLPassword="@SSL_PASSWORD@" />

Start your Tomcat and receive following confusing message:
Nov 06, 2013 1:30:39 PM org.apache.coyote.http11.Http11AprProtocol start
SEVERE: Error starting endpoint
java.lang.Exception: Socket bind failed: [226] Adresse bereits im Zugriff
        at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:671)
        at org.apache.tomcat.util.net.AprEndpoint.start(AprEndpoint.java:851)
        at org.apache.coyote.http11.Http11AprProtocol.start(Http11AprProtocol.java:139)
        at org.apache.catalina.connector.Connector.start(Connector.java:1196)
        at org.apache.catalina.core.StandardService.start(StandardService.java:540)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
        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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

Nov 06, 2013 1:30:39 PM org.apache.catalina.core.StandardService start
SEVERE: Failed to start connector [Connector[HTTP/1.1-8444]]
LifecycleException:  service.getName(): "Catalina";  Protocol handler start failed: java.lang.Exception: Socket bind failed: [226] Adresse bereits im Zugriff
        at org.apache.catalina.connector.Connector.start(Connector.java:1203)
        at org.apache.catalina.core.StandardService.start(StandardService.java:540)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
        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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

This is of course not correct. The port IS availble but the SSL engine has been turned off.

There should be a check at stratup which says that this is an illegal state.