Set extra.Classpath to require

Author: laeubi

eclipse-platform-parent/pom.xml

@@ -120,7 +120,7 @@
     <!-- allows submodules to disable the usage of BREE for their builds -->
     <tycho.useJDK>BREE</tycho.useJDK>
     <!-- Allows submodules to control how they want to treat jars.extra.classpath-->
-    <tycho.extraClasspathJars>OPTIONAL</tycho.extraClasspathJars>
+    <tycho.extraClasspathJars>REQUIRE</tycho.extraClasspathJars>
 
     <compare-version-with-baselines.skip>true</compare-version-with-baselines.skip>
     <version.baseline.check.skip>${compare-version-with-baselines.skip}</version.baseline.check.skip> <!-- Allows projects to overwrite the value set on the CLI to skip the check in any case. -->