GWT 2.8 - Super Dev Mode throws NoClassDefFoundError

I have a GWT 2.8.2 project and downloaded the current plugin's snapshot from https://storage.googleapis.com/gwt-eclipse-plugin/v3/snapshot.

My versions:
- GWT 2.8.2 SDK - 2.8.0.201803211650
- GWT Eclipse Plugin - 3.0.0.201803211650

My project refers to these dependencies in its POM:

```xml

com.google.gwt
gwt-user
2.8.2
provided

com.google.web.bindery
requestfactory-server
2.8.2

```

Now, when I try to run Super Dev mode for this project, I get an error:

```
Exception in thread "main" java.lang.NoClassDefFoundError: cern/colt/map/OpenIntObjectHashMap
at com.google.gwt.dev.util.collect.IntMultimap.(IntMultimap.java:28)
at com.google.gwt.dev.StringAnalyzableTypeEnvironment.(StringAnalyzableTypeEnvironment.java:68)
at com.google.gwt.dev.MinimalRebuildCache.(MinimalRebuildCache.java:192)
at com.google.gwt.dev.CompilerContext$Builder.(CompilerContext.java:37)
at com.google.gwt.dev.DevModeBase.(DevModeBase.java:636)
at com.google.gwt.dev.DevMode.(DevMode.java:463)
at com.google.gwt.dev.DevMode.main(DevMode.java:430)
Caused by: java.lang.ClassNotFoundException: cern.colt.map.OpenIntObjectHashMap
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 7 more
```

It looks like the eclipse plugin correctly adds gwt-dev.jar to the classpath, but not any of its required dependencies...