MydasServlet initialisation fails to read config file.

[fdlk]

Reproduce

Check out 1.21 branch, clean database and work dir, start molgenis in IntelliJ.

Expected

MydasServlet initializes without problems

Observed

10:02:51.559 [RMI TCP Connection(4)-127.0.0.1] ERROR u.a.e.mydas.controller.MydasServlet - Fatal Exception thrown at initialisation.  None of the datasources will be usable.
java.lang.IllegalArgumentException: is parameter must not be null
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:200) ~[na:1.8.0_91]
    at uk.ac.ebi.mydas.configuration.ConfigurationManager.unmarshal(ConfigurationManager.java:41) ~[mydas-1.6.7.jar:1.6.7]
    at uk.ac.ebi.mydas.controller.DataSourceManager.loadConfiguration(DataSourceManager.java:80) ~[mydas-1.6.7.jar:1.6.7]
    at uk.ac.ebi.mydas.controller.DataSourceManager.init(DataSourceManager.java:62) ~[mydas-1.6.7.jar:1.6.7]
    at uk.ac.ebi.mydas.controller.MydasServlet.init(MydasServlet.java:214) ~[mydas-1.6.7.jar:1.6.7]
    at javax.servlet.GenericServlet.init(GenericServlet.java:158) [servlet-api.jar:3.1.FR]
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1238) [catalina.jar:8.0.33]
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1041) [catalina.jar:8.0.33]
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4996) [catalina.jar:8.0.33]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285) [catalina.jar:8.0.33]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) [catalina.jar:8.0.33]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725) [catalina.jar:8.0.33]
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701) [catalina.jar:8.0.33]
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) [catalina.jar:8.0.33]
    at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1696) [catalina.jar:8.0.33]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) [tomcat-coyote.jar:8.0.33]
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_91]
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_91]
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:484) [catalina.jar:8.0.33]
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:433) [catalina.jar:8.0.33]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) [tomcat-coyote.jar:8.0.33]
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_91]
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_91]
    at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_91]
    at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_91]
    at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_91]
    at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) [na:1.8.0_91]
    at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:324) [na:1.8.0_91]
    at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_91]
    at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_91]
    at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91]
    at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_91]
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) [na:1.8.0_91]
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) [na:1.8.0_91]
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) [na:1.8.0_91]
    at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91]
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [na:1.8.0_91]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_91]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_91]
    at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_91]

[fdlk]

Solution is to run mvn clean install.