Missing implementation of ProjectManager in a RCP Maven project

[Blaine Bergeson (bbergeson)]

I am in the process of converting a working RCP Ant based application, built 
with NetBeans 8.2, over to NetBeans 8.2 Maven.  I am getting the following 
runtime error after adding my module that adds Project support:

java.lang.IllegalStateException: No ProjectManagerImplementation found in 
global Lookup.
                at 
org.netbeans.api.project.ProjectManager.<init>(ProjectManager.java:79)
                at 
org.netbeans.api.project.ProjectManager.<clinit>(ProjectManager.java:73)

I would think I am just missing a dependency.  Here is the code in the 
ProjectManager class which is displaying the error message above.

    private ProjectManager() {
        this.impl = 
Lookup.getDefault().lookup(ProjectManagerImplementation.class);
        if (this.impl == null) {
            throw new IllegalStateException("No ProjectManagerImplementation 
found in global Lookup."); //NOI18N
        }
        
this.impl.init(SPIAccessor.getInstance().createProjectManagerCallBack());


I looked at the ProjectManagerImplementation class and discovered it is just an 
interface so now where is the implementing class that is registering itself as 
an implementer?

My module is directly depending on the following modules:

org-openide-modules-projectapi-RELEASE82.jar
og-openide-modules-projectuiapi-RELEASE82.jar
org-openide-modules-projectuiapi-base-RELEASE82.jar

Again, my guess is that I am just missing a dependency, but which one?  
Comparing to my Ant based project that is working I still can't tell what I am 
missing.  Any ideas while I keep looking?

Thx Blaine