Make bytecode test engine backwards compatible with older JUnit versions

Author: beikov

hibernate-testing/src/main/java/org/hibernate/testing/bytecode/enhancement/extension/engine/BytecodeEnhancedEngineDescriptor.java

@@ -8,10 +8,18 @@
 
 import org.junit.jupiter.engine.config.JupiterConfiguration;
 import org.junit.jupiter.engine.descriptor.JupiterEngineDescriptor;
+import org.junit.platform.engine.TestDescriptor;
 import org.junit.platform.engine.UniqueId;
 
 public class BytecodeEnhancedEngineDescriptor extends JupiterEngineDescriptor {
 	public BytecodeEnhancedEngineDescriptor(UniqueId uniqueId, JupiterConfiguration configuration) {
 		super( uniqueId, configuration );
 	}
+
+	public BytecodeEnhancedEngineDescriptor(JupiterEngineDescriptor engineDescriptor) {
+		super( engineDescriptor.getUniqueId(), engineDescriptor.getConfiguration() );
+		for ( TestDescriptor child : engineDescriptor.getChildren() ) {
+			addChild( child );
+		}
+	}
 }

hibernate-testing/src/main/java/org/hibernate/testing/bytecode/enhancement/extension/engine/BytecodeEnhancedTestEngine.java

@@ -60,7 +60,9 @@ public String getId() {
 
 	@Override
 	public TestDescriptor discover(EngineDiscoveryRequest discoveryRequest, UniqueId uniqueId) {
-		final JupiterEngineDescriptor engineDescriptor = (JupiterEngineDescriptor) new JupiterTestEngine().discover(discoveryRequest, uniqueId);
+		final BytecodeEnhancedEngineDescriptor engineDescriptor = new BytecodeEnhancedEngineDescriptor(
+				(JupiterEngineDescriptor) new JupiterTestEngine().discover( discoveryRequest, uniqueId )
+		);
 
 		for ( TestDescriptor testDescriptor : new HashSet<>( engineDescriptor.getChildren() ) ) {
 			if ( testDescriptor instanceof ClassBasedTestDescriptor ) {