Most Significant Changes went from

  • Java 8 to Java 11
  • Tomcat 8 to Tomcat 9
  • Maven 3.3 to Maven 3.6
  • Mysql server 5.7 to version 8.0
  • Spring 3.2 to Spring 5.1
  • Hibernate 3.6 to Hibernate 5.4
  • JQuery 1.11 to JQuery 3.4


Actions for you to Take

  • Install and use Zulu-JDK 11
    • Update JAVA_HOME to point to this JDK
  • Tomcat 9
    • Use tomcat-9.0.16
    • Take the <Resource> xml stanza from your old conf/Catalina/localhost/scheduler.xml and place it as an element of <Context> in conf/Catalina/context.xml
    • Then remove the old scheduler.xml
    • Change that <Resource> in conf/Catalina/context.xml as follows:

      • for driverClass, use the following

        • driverClass="com.mysql.cj.jdbc.Driver"

      • for jdbcUrl, use the following (with the 'html entity' for ampersand)

        • jdbcUrl="jdbc:mysql://localhost/scheduler?serverTimezone=EST&amp;useJDBCCompliantTimezoneShift=true&amp;useSSL=false"
    • In lib, remove older versions of c3p0, mysql-connector-java and mchange-commons-java
    • Then download and add
  • Configure and run the  standalone, updateUserSalt, to convert DB user salt fields to new MIME flavored salts
    • Erratum for its README: Adjust update-user-salt.properties to match the encryption properties from scheduler.properties and the DB Resource xml-stanza from context.xml
    • However, use the form of the jdbc-url as indicate in the next bullet
  • For standalone modules (such as updateUserSalt) the jdbc-url specified in their properties files should use a shorter version than does tomcat: 
  • For building, use maven 3.6.1 


It is possible that even more recent releases of tomcat, JDK, Maven, etc. will also work, but we have not verified this.

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