MVD Build Fails: signaling-auth-none Extension Compilation Error

[minaattr]

When building MVD from source on a fresh clone, the build fails with:

error: incompatible types: String is not a functional interface
/opt/application/mvd/launchers/dataplane/src/main/java/org/eclipse/edc/mvd/dataplane/SignalingDataPlaneRuntimeExtension.java:170

Additionally, the signaling-auth-none extension has broken imports:

error: package org.eclipse.edc.connector.dataplane.selector.spi.instance does not exist

Steps to reproduce:

1. Fresh clone of MinimumViableDataspace main branch
2. Run ./gradlew dockerize
3. Build fails with compilation errors

Expected behavior:
Build should succeed or documentation should explain how to skip broken extensions.

Actual behavior:
Build fails with multiple Java compilation errors in dataplane and signaling-auth-none modules.

Environment:

• Ubuntu 24.04
• JDK 17+
• Gradle 9.6.0