Try new snapshot URL

Author: laeubi

eclipse-platform-parent/pom.xml

@@ -82,7 +82,7 @@
     <comparator.repo>${eclipse-sdk-repo}</comparator.repo>
 
     <!-- only used when Tycho snapshot repo is enabled in <pluginRepositories> further down -->
-    <tycho-snapshot-repo.url>https://repo.eclipse.org/content/repositories/tycho-snapshots/</tycho-snapshot-repo.url>
+    <tycho-snapshot-repo.url>https://repo.eclipse.org/content/repositories/tycho-maven2-snapshots/</tycho-snapshot-repo.url>
 
     <eclipse-snapshots-repo.url>https://repo.eclipse.org/content/repositories/eclipse-snapshots/</eclipse-snapshots-repo.url>
     <cbi-ecj-version>[3.39,)</cbi-ecj-version>
@@ -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>REQUIRE</tycho.extraClasspathJars>
+    <tycho.extraClasspathJars>OPTIONAL</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. -->