I've got it.
You need to run mvn package' or the test-jar won't exist. You don't
need to run mvn install.
I also did:
Index: core/metamodel/pom.xml
===================================================================
--- core/metamodel/pom.xml (revision 1024426)
+++ core/metamodel/pom.xml (working copy)
@@ -24,6 +24,7 @@
<groupId>org.apache.isis</groupId>
<artifactId>applib</artifactId>
<type>test-jar</type>
+ <version>0.1-SNAPSHOT</version>
<scope>test</scope>
</dependency>
Index: core/testsupport/pom.xml
===================================================================
--- core/testsupport/pom.xml (revision 1024426)
+++ core/testsupport/pom.xml (working copy)
@@ -9,6 +9,7 @@
<groupId>org.apache.isis.core</groupId>
<artifactId>testsupport</artifactId>
+ <version>0.1-SNAPSHOT</version>
<name>Core Test Support</name>
<description>
Index: applib/pom.xml
===================================================================
--- applib/pom.xml (revision 1024426)
+++ applib/pom.xml (working copy)
@@ -7,8 +7,9 @@
<artifactId>isis-parent</artifactId>
<version>0.1-SNAPSHOT</version>
</parent>
-
+ <groupId>org.apache.isis</groupId>
<artifactId>applib</artifactId>
+ <version>0.1-SNAPSHOT</version>
<name>Isis AppLib</name>
<description>
