Remove exceptional test exclusions for forked non-tests and inner classes.

build.gradle

@@ -109,12 +109,9 @@ ext {
 
 apply from: file('gradle/generation/local-settings.gradle')
 
-// Ant-compatibility layer: apply folder layout early so that
-// evaluation of other scripts doesn't need to be deferred.
-apply from: file('gradle/ant-compat/folder-layout.gradle')
-
 // Set up defaults and configure aspects for certain modules or functionality
 // (java, tests)
+apply from: file('gradle/java/folder-layout.gradle')
 apply from: file('gradle/java/javac.gradle')
 apply from: file('gradle/testing/defaults-tests.gradle')
 apply from: file('gradle/testing/randomization.gradle')

gradle/ant-compat/misc.gradle

@@ -15,16 +15,6 @@
  * limitations under the License.
  */
 
-// Exclude test classes that are not actually stand-alone tests (they're executed from other stuff).
-configure(project(":lucene:replicator")) {
-  plugins.withType(JavaPlugin) {
-    test {
-      exclude "**/SimpleServer*"
-    }
-  }
-}
-
-
 // Resources from top-level project folder are looked up via getClass(). Strange.
 configure(project(":lucene:benchmark")) {
   plugins.withType(JavaPlugin) {

gradle/java/folder-layout.gradle

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-// Adapt to custom folder convention.
+// Adapt to custom, legacy folder convention.
 allprojects {
   plugins.withType(JavaPlugin) {
     sourceSets {
@@ -32,11 +32,7 @@ allprojects {
       into sourceSets.test.java.outputDir
     }
     processTestResources.dependsOn copyTestResources
-  }
-}
 
-allprojects {
-  plugins.withType(JavaPlugin) {
     // if 'src/tools' exists, add it as a separate sourceSet.
     if (file('src/tools/java').exists()) {
       sourceSets {

lucene/core/src/test/org/apache/lucene/util/TestVirtualMethod.java

@@ -17,17 +17,18 @@
 package org.apache.lucene.util;
 
 public class TestVirtualMethod extends LuceneTestCase {
+  private static final VirtualMethod<Base> publicTestMethod =
+      new VirtualMethod<>(Base.class, "publicTest", String.class);
+  private static final VirtualMethod<Base> protectedTestMethod =
+      new VirtualMethod<>(Base.class, "protectedTest", int.class);
 
-  private static final VirtualMethod<TestVirtualMethod> publicTestMethod =
-      new VirtualMethod<>(TestVirtualMethod.class, "publicTest", String.class);
-  private static final VirtualMethod<TestVirtualMethod> protectedTestMethod =
-      new VirtualMethod<>(TestVirtualMethod.class, "protectedTest", int.class);
+  static class Base {
+    public void publicTest(String test) {}
 
-  public void publicTest(String test) {}
+    protected void protectedTest(int test) {}
+  }
 
-  protected void protectedTest(int test) {}
-
-  static class TestClass1 extends TestVirtualMethod {
+  static class Nested1 extends Base {
     @Override
     public void publicTest(String test) {}
 
@@ -35,74 +36,73 @@ public class TestVirtualMethod extends LuceneTestCase {
     protected void protectedTest(int test) {}
   }
 
-  static class TestClass2 extends TestClass1 {
+  static class Nested2 extends Nested1 {
     @Override // make it public here
     public void protectedTest(int test) {}
   }
 
-  static class TestClass3 extends TestClass2 {
+  static class Nested3 extends Nested2 {
     @Override
     public void publicTest(String test) {}
   }
 
-  static class TestClass4 extends TestVirtualMethod {}
+  static class Nested4 extends Base {}
 
-  static class TestClass5 extends TestClass4 {}
+  static class Nested5 extends Nested4 {}
 
   public void testGeneral() {
-    assertEquals(0, publicTestMethod.getImplementationDistance(this.getClass()));
-    assertEquals(1, publicTestMethod.getImplementationDistance(TestClass1.class));
-    assertEquals(1, publicTestMethod.getImplementationDistance(TestClass2.class));
-    assertEquals(3, publicTestMethod.getImplementationDistance(TestClass3.class));
-    assertFalse(publicTestMethod.isOverriddenAsOf(TestClass4.class));
-    assertFalse(publicTestMethod.isOverriddenAsOf(TestClass5.class));
+    assertEquals(0, publicTestMethod.getImplementationDistance(Base.class));
+    assertEquals(1, publicTestMethod.getImplementationDistance(Nested1.class));
+    assertEquals(1, publicTestMethod.getImplementationDistance(Nested2.class));
+    assertEquals(3, publicTestMethod.getImplementationDistance(Nested3.class));
+    assertFalse(publicTestMethod.isOverriddenAsOf(Nested4.class));
+    assertFalse(publicTestMethod.isOverriddenAsOf(Nested5.class));
 
-    assertEquals(0, protectedTestMethod.getImplementationDistance(this.getClass()));
-    assertEquals(1, protectedTestMethod.getImplementationDistance(TestClass1.class));
-    assertEquals(2, protectedTestMethod.getImplementationDistance(TestClass2.class));
-    assertEquals(2, protectedTestMethod.getImplementationDistance(TestClass3.class));
-    assertFalse(protectedTestMethod.isOverriddenAsOf(TestClass4.class));
-    assertFalse(protectedTestMethod.isOverriddenAsOf(TestClass5.class));
+    assertEquals(0, protectedTestMethod.getImplementationDistance(Base.class));
+    assertEquals(1, protectedTestMethod.getImplementationDistance(Nested1.class));
+    assertEquals(2, protectedTestMethod.getImplementationDistance(Nested2.class));
+    assertEquals(2, protectedTestMethod.getImplementationDistance(Nested3.class));
+    assertFalse(protectedTestMethod.isOverriddenAsOf(Nested4.class));
+    assertFalse(protectedTestMethod.isOverriddenAsOf(Nested5.class));
 
     assertTrue(
         VirtualMethod.compareImplementationDistance(
-                TestClass3.class, publicTestMethod, protectedTestMethod)
+                Nested3.class, publicTestMethod, protectedTestMethod)
             > 0);
     assertEquals(
         0,
         VirtualMethod.compareImplementationDistance(
-            TestClass5.class, publicTestMethod, protectedTestMethod));
+            Nested5.class, publicTestMethod, protectedTestMethod));
   }
 
   @SuppressWarnings({"rawtypes", "unchecked"})
   public void testExceptions() {
-    // LuceneTestCase is not a subclass and can never override publicTest(String)
+    // Object is not a subclass and can never override publicTest(String)
     expectThrows(
         IllegalArgumentException.class,
         () -> {
-          // cast to Class to remove generics:
-          publicTestMethod.getImplementationDistance((Class) LuceneTestCase.class);
+          publicTestMethod.getImplementationDistance((Class) Object.class);
         });
 
     // Method bogus() does not exist, so IAE should be thrown
     expectThrows(
         IllegalArgumentException.class,
         () -> {
-          new VirtualMethod<>(TestVirtualMethod.class, "bogus");
+          new VirtualMethod<>(Base.class, "bogus");
         });
 
     // Method publicTest(String) is not declared in TestClass2, so IAE should be thrown
     expectThrows(
         IllegalArgumentException.class,
         () -> {
-          new VirtualMethod<>(TestClass2.class, "publicTest", String.class);
+          new VirtualMethod<>(Nested2.class, "publicTest", String.class);
         });
 
     // try to create a second instance of the same baseClass / method combination
     expectThrows(
         UnsupportedOperationException.class,
         () -> {
-          new VirtualMethod<>(TestVirtualMethod.class, "publicTest", String.class);
+          new VirtualMethod<>(Base.class, "publicTest", String.class);
         });
   }
 }

lucene/replicator/src/test/org/apache/lucene/replicator/nrt/SimpleServer.java

@@ -47,10 +47,11 @@ import org.apache.lucene.util.LuceneTestCase.SuppressCodecs;
 import org.apache.lucene.util.LuceneTestCase.SuppressSysoutChecks;
 import org.apache.lucene.util.SuppressForbidden;
 import org.apache.lucene.util.TestUtil;
+import org.junit.AssumptionViolatedException;
 
 /**
  * Child process with silly naive TCP socket server to handle between-node commands, launched for
- * each node by TestNRTReplication.
+ * each node by {@link TestNRTReplication}.
  */
 @SuppressCodecs({"MockRandom", "Direct", "SimpleText"})
 @SuppressSysoutChecks(bugUrl = "Stuff gets printed, important stuff for debugging a failure")
@@ -223,8 +224,12 @@ public class SimpleServer extends LuceneTestCase {
 
   @SuppressWarnings("try")
   public void test() throws Exception {
+    String nodeId = System.getProperty("tests.nrtreplication.nodeid");
+    if (nodeId == null) {
+      throw new AssumptionViolatedException("Not a stand-alone test.");
+    }
 
-    int id = Integer.parseInt(System.getProperty("tests.nrtreplication.nodeid"));
+    int id = Integer.parseInt(nodeId);
     Thread.currentThread().setName("main child " + id);
     Path indexPath = Paths.get(System.getProperty("tests.nrtreplication.indexpath"));
     boolean isPrimary = System.getProperty("tests.nrtreplication.isPrimary") != null;