RE: [EXT] RE: Missing implementation of ProjectManager in a RCP Maven project

["Blaine Bergeson (bbergeson)" <bb...@micron.com>]

Thanks for you feedback.  This did indeed fix my problem.

- Blaine

From: Eirik Bakke [mailto:ebakke@ultorg.com]
Sent: Friday, February 1, 2019 12:40 PM
To: Blaine Bergeson (bbergeson) <bb...@micron.com>; NetBeans Mailing List <us...@netbeans.apache.org>
Subject: [EXT] RE: Missing implementation of ProjectManager in a RCP Maven project

In cases like these I find it helpful to search the NetBeans codebase. E.g.:

git clone git@github.com:apache/incubator-netbeans.git<mailto:git@github.com:apache/incubator-netbeans.git>
git grep ProjectManagerImplementation

The output includes the following line:
ide/projectapi.nb/src/org/netbeans/modules/projectapi/nb/NbProjectManager.java:public final class NbProjectManager implements ProjectManagerImplementation

That means the implementation of ProjectManagerImplementation lies in a module called "projectapi.nb". Looking at my own app's pom.xml, here are the relevant maven coordinates to include that module:

    <dependency>
      <groupId>org.netbeans.modules</groupId>
      <artifactId>org-netbeans-modules-projectapi-nb</artifactId>
      <version>${netbeans.version}</version>
      <scope>runtime</scope>
    </dependency>

-- Eirik

From: Blaine Bergeson (bbergeson) <bb...@micron.com>>
Sent: Tuesday, January 29, 2019 6:58 PM
To: NetBeans Mailing List <us...@netbeans.apache.org>>
Subject: Missing implementation of ProjectManager in a RCP Maven project

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