Clean up remaining chores

protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/SerDeserLongTest.java

@@ -8,6 +8,9 @@
 import com.fasterxml.jackson.dataformat.protobuf.schema.ProtobufSchema;
 import com.fasterxml.jackson.dataformat.protobuf.schema.ProtobufSchemaLoader;
 
+/**
+ * Created by miz on 8/10/16.
+ */
 public class SerDeserLongTest {
     @Test
     public void testWeirdLongSerDeser() throws IOException {

protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/WriteErrorsTest.java

@@ -13,6 +13,10 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
+/**
+ * Unit tests for generation that trigger exceptions (or would
+ * without suppression).
+ */
 public class WriteErrorsTest extends ProtobufTestBase
 {
     static class Point3D extends Point {

protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/testutil/failure/JacksonTestFailureExpectedInterceptor.java

@@ -4,6 +4,12 @@
 
 import org.junit.jupiter.api.extension.*;
 
+/**
+ * Custom {@link InvocationInterceptor} that intercepts test method invocation.
+ * To pass the test ***only if*** test fails with an exception, and fail the test otherwise.
+ *
+ * @since 2.19
+ */
 public class JacksonTestFailureExpectedInterceptor
     implements InvocationInterceptor
 {

protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/testutil/failure/JacksonTestShouldFailException.java

@@ -7,7 +7,6 @@
  *
  * @since 2.19
  */
-
 public class JacksonTestShouldFailException
     extends RuntimeException
 {