diff --git a/afterburner/src/test/java/com/fasterxml/jackson/module/afterburner/deser/TestSimpleDeserialize.java b/afterburner/src/test/java/com/fasterxml/jackson/module/afterburner/deser/BasicDeserializeTest.java
similarity index 87%
rename from afterburner/src/test/java/com/fasterxml/jackson/module/afterburner/deser/TestSimpleDeserialize.java
rename to afterburner/src/test/java/com/fasterxml/jackson/module/afterburner/deser/BasicDeserializeTest.java
index 718e825e..6da3767e 100644
--- a/afterburner/src/test/java/com/fasterxml/jackson/module/afterburner/deser/TestSimpleDeserialize.java
+++ b/afterburner/src/test/java/com/fasterxml/jackson/module/afterburner/deser/BasicDeserializeTest.java
@@ -4,10 +4,12 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
 import com.fasterxml.jackson.databind.ObjectMapper;
+
 import com.fasterxml.jackson.module.afterburner.AfterburnerTestBase;
 
-public class TestSimpleDeserialize extends AfterburnerTestBase
+public class BasicDeserializeTest extends AfterburnerTestBase
 {
     public enum MyEnum {
         A, B, C;
@@ -143,6 +145,23 @@ static class Issue60Pojo {
         public List<Object> foos;
     }    
 
+    // [modules-base#123]: fluent method(s)
+    public static class Model123 {
+        int value = 10;
+
+        protected Model123() { }
+        public Model123(int v) { value = v; }
+
+        public int getValue() {
+            return value;
+        }
+
+        public Model123 setValue(int value) {
+            this.value = value;
+            return this;
+        }
+    }
+
     /*
     /**********************************************************************
     /* Test methods, method access
@@ -325,38 +344,13 @@ public void testProblemWithIndentation() throws Exception {
         assertEquals(0, pojo.foos.size());
     }
 
-    // 28-Sep-2019, tatu: I do not fully understand what this method tried to do;
-    //   it seemed to be a contribution from July 2016. But I noticed that it breaks
-    //   with JDK 12 and unlikely to be allowed so let's comment it out.
-    /*
+    // [modules-base#123]
+    public void testFluentMethod() throws Exception
+    {
+        String json = MAPPER.writeValueAsString(new Model123(28));
 
-    static class CheckGeneratedDeserializerName {
-        public String stringField;
-    }
-    
-    @SuppressWarnings("unchecked")
-    public void testGeneratedDeserializerName() throws Exception {
-        MAPPER.readValue("{\"stringField\":\"foo\"}", CheckGeneratedDeserializerName.class);
-        ClassLoader cl = getClass().getClassLoader();
-        Field declaredField = ClassLoader.class.getDeclaredField("classes");
-        declaredField.setAccessible(true);
-        // 06-Sep-2017, tatu: Hmmh. Whatever this code does... is not very robust.
-        //    But has to do for now. OpenJDK 7 had issues with size, increased:
-        Class<?>[] os = new Class[8192];
-        ((Vector<Class<?>>) declaredField.get(cl)).copyInto(os);
-
-        String expectedClassName = TestSimpleDeserialize.class.getCanonicalName()
-                + "$CheckGeneratedDeserializerName$Access4JacksonDeserializer";
-        for (Class<?> clz : os) {
-            if (clz == null) {
-                break;
-            }
-            if (clz.getCanonicalName() != null
-                    && clz.getCanonicalName().startsWith(expectedClassName)) {
-                return;
-            }
-        }
-        fail("Expected class not found:" + expectedClassName);
+        Model123 result = MAPPER.readValue(json, Model123.class);
+        assertNotNull(result);
+        assertEquals(28, result.value);
     }
-    */
 }
diff --git a/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/deser/TestSimpleDeserialize.java b/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/deser/BasicDeserializeTest.java
similarity index 99%
rename from blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/deser/TestSimpleDeserialize.java
rename to blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/deser/BasicDeserializeTest.java
index ba57e25b..1367c448 100644
--- a/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/deser/TestSimpleDeserialize.java
+++ b/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/deser/BasicDeserializeTest.java
@@ -1,12 +1,15 @@
 package com.fasterxml.jackson.module.blackbird.deser;
 
 import java.util.List;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
 import com.fasterxml.jackson.databind.ObjectMapper;
+
 import com.fasterxml.jackson.module.blackbird.BlackbirdTestBase;
 
-public class TestSimpleDeserialize extends BlackbirdTestBase
+public class BasicDeserializeTest extends BlackbirdTestBase
 {
     public enum MyEnum {
         A, B, C;
diff --git a/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/failing/BasicDeserialize123Test.java b/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/failing/BasicDeserialize123Test.java
new file mode 100644
index 00000000..de3084a9
--- /dev/null
+++ b/blackbird/src/test/java/com/fasterxml/jackson/module/blackbird/failing/BasicDeserialize123Test.java
@@ -0,0 +1,38 @@
+package com.fasterxml.jackson.module.blackbird.failing;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import com.fasterxml.jackson.module.blackbird.BlackbirdTestBase;
+
+// Failing test from "BasicDeserializeTest", see [modules-base#123]
+public class BasicDeserialize123Test extends BlackbirdTestBase
+{
+    // [modules-base#123]: fluent method(s)
+    static class Model123 {
+        int value = 10;
+
+        protected Model123() { }
+        public Model123(int v) { value = v; }
+
+        public int getValue() {
+            return value;
+        }
+
+        public Model123 setValue(int value) {
+            this.value = value;
+            return this;
+        }
+    }
+
+    private final ObjectMapper MAPPER = newObjectMapper();
+
+    // [modules-base#123]
+    public void testFluentMethod() throws Exception
+    {
+        String json = MAPPER.writeValueAsString(new Model123(28));
+
+        Model123 result = MAPPER.readValue(json, Model123.class);
+        assertNotNull(result);
+        assertEquals(28, result.value);
+    }
+}