diff --git a/blackbox-test/src/main/java/org/example/customer/creator/PropertyCreator.java b/blackbox-test/src/main/java/org/example/customer/creator/PropertyCreator.java
new file mode 100644
index 00000000..0aac10f5
--- /dev/null
+++ b/blackbox-test/src/main/java/org/example/customer/creator/PropertyCreator.java
@@ -0,0 +1,43 @@
+package org.example.customer.creator;
+
+import io.avaje.jsonb.Json;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.UUID;
+
+@Json
+public final class PropertyCreator {
+
+  @Json.Property("uid")
+  private final String identifier;
+
+  @Json.Property("stp")
+  private final Instant startup;
+
+  @Json.Creator
+  public PropertyCreator(
+    String identifier,
+    Instant startup) {
+    this.identifier = identifier;
+    this.startup = startup;
+  }
+
+  public PropertyCreator(Instant startup) {
+    this.identifier = Instant.now().toEpochMilli() + "-" + UUID.randomUUID();
+    this.startup = startup;
+  }
+
+  public String identifier() {
+    return this.identifier;
+  }
+
+  public Instant startup() {
+    return this.startup;
+  }
+
+  @Json.Property("upt")
+  public Duration uptime() {
+    return Duration.ofMillis(1);
+  }
+}
diff --git a/blackbox-test/src/test/java/org/example/customer/creator/PropertyCreatorTest.java b/blackbox-test/src/test/java/org/example/customer/creator/PropertyCreatorTest.java
new file mode 100644
index 00000000..16e020a7
--- /dev/null
+++ b/blackbox-test/src/test/java/org/example/customer/creator/PropertyCreatorTest.java
@@ -0,0 +1,27 @@
+package org.example.customer.creator;
+
+import io.avaje.jsonb.Jsonb;
+import org.junit.jupiter.api.Test;
+
+import java.time.Instant;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class PropertyCreatorTest {
+
+  final Jsonb jsonb = Jsonb.builder().build();
+
+  @Test
+  void asJson() {
+    var instant = Instant.ofEpochMilli(1);
+    var pc = new PropertyCreator("strVal", instant);
+
+    String json = jsonb.toJson(pc);
+    PropertyCreator fromJson = jsonb.type(PropertyCreator.class).fromJson(json);
+
+    assertThat(fromJson.identifier()).isEqualTo("strVal");
+    assertThat(fromJson.identifier()).isEqualTo(pc.identifier());
+    assertThat(fromJson.startup()).isEqualTo(pc.startup());
+    assertThat(fromJson.uptime()).isEqualTo(pc.uptime());
+  }
+}
diff --git a/jsonb-generator/src/main/java/io/avaje/jsonb/generator/Processor.java b/jsonb-generator/src/main/java/io/avaje/jsonb/generator/Processor.java
index 5498e201..1f07ee9d 100644
--- a/jsonb-generator/src/main/java/io/avaje/jsonb/generator/Processor.java
+++ b/jsonb-generator/src/main/java/io/avaje/jsonb/generator/Processor.java
@@ -307,6 +307,7 @@ private void writeAdapter(TypeElement typeElement, BeanReader beanReader) {
       if (beanReader.hasJsonAnnotation()) {
         logError("Error JsonAdapter due to nonAccessibleField for %s ", beanReader);
       }
+      logNote("Skipped writing JsonAdapter for %s due to non accessible fields", beanReader);
       return;
     }
     try {
diff --git a/jsonb-generator/src/main/java/io/avaje/jsonb/generator/TypeReader.java b/jsonb-generator/src/main/java/io/avaje/jsonb/generator/TypeReader.java
index 640e3b30..e884346e 100644
--- a/jsonb-generator/src/main/java/io/avaje/jsonb/generator/TypeReader.java
+++ b/jsonb-generator/src/main/java/io/avaje/jsonb/generator/TypeReader.java
@@ -136,9 +136,10 @@ void read(TypeElement type) {
       for (var param : constructor.getParams()) {
         var name = param.name();
         var element = param.element();
-        var matchingField = localFields.stream()
-          .filter(f -> f.propertyName().equals(name))
-          .findFirst();
+        var matchingField =
+            localFields.stream()
+                .filter(f -> f.propertyName().equals(name) || f.fieldName().equals(name))
+                .findFirst();
         matchingField.ifPresentOrElse(f -> f.readParam(element), () -> readField(element, localFields));
       }
     }
diff --git a/jsonb-generator/src/test/java/io/avaje/jsonb/generator/models/valid/PropertyCreator.java b/jsonb-generator/src/test/java/io/avaje/jsonb/generator/models/valid/PropertyCreator.java
new file mode 100644
index 00000000..faca4109
--- /dev/null
+++ b/jsonb-generator/src/test/java/io/avaje/jsonb/generator/models/valid/PropertyCreator.java
@@ -0,0 +1,90 @@
+package io.avaje.jsonb.generator.models.valid;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.temporal.Temporal;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Properties;
+import java.util.Set;
+import java.util.UUID;
+import java.util.function.Consumer;
+
+import io.avaje.jsonb.Json;
+
+@Json
+public final class PropertyCreator {
+
+  private final transient String[] arguments;
+
+  private final transient List<Consumer<?>> hooks;
+
+  @Json.Property("uid")
+  private final String identifier;
+
+  @Json.Property("stp")
+  private final Instant startup;
+
+  @Json.Property("cfg")
+  private final Properties configuration;
+
+  @Json.Property("ins")
+  private final Set<PropertyCreator> instances;
+
+  @Json.Creator
+  public PropertyCreator(
+      String identifier,
+      Instant startup,
+      Properties configuration,
+      Set<PropertyCreator> instances) {
+    this.arguments = null;
+    this.hooks = null;
+
+    this.identifier = identifier;
+    this.startup = startup;
+    this.configuration = configuration;
+    this.instances = null;
+  }
+
+  public PropertyCreator(String[] arguments, Instant startup) throws IOException {
+    this.arguments = arguments != null ? arguments : new String[0];
+    this.hooks = new ArrayList<>();
+
+    this.identifier = Instant.now().toEpochMilli() + "-" + UUID.randomUUID();
+    this.startup = startup;
+
+    this.configuration = new Properties();
+    this.configuration.putAll(System.getenv());
+    this.configuration.putAll(System.getProperties());
+
+    this.instances = new HashSet<>();
+  }
+
+  public String[] arguments() {
+    return arguments;
+  }
+
+  public String identifier() {
+    return this.identifier;
+  }
+
+  public Instant startup() {
+    return this.startup;
+  }
+
+  public Properties configuration() {
+    return this.configuration;
+  }
+
+  public Set<PropertyCreator> instances() {
+    return this.instances;
+  }
+
+  @Json.Property("upt")
+  public Duration uptime() {
+    return Duration.ofMillis(1);
+  }
+}
diff --git a/jsonb/src/main/java/io/avaje/jsonb/core/JavaTimeAdapters.java b/jsonb/src/main/java/io/avaje/jsonb/core/JavaTimeAdapters.java
index 36d4ee9e..c6a9a0ae 100644
--- a/jsonb/src/main/java/io/avaje/jsonb/core/JavaTimeAdapters.java
+++ b/jsonb/src/main/java/io/avaje/jsonb/core/JavaTimeAdapters.java
@@ -28,6 +28,7 @@ final class JavaTimeAdapters {
     if (type == ZoneId.class) return JavaTimeAdapters.ZONE_ID_ADAPTER.nullSafe();
     if (type == ZoneOffset.class) return JavaTimeAdapters.ZONE_OFFSET_ADAPTER.nullSafe();
     if (type == Date.class) return JavaTimeAdapters.UTIL_DATE.nullSafe();
+    if (type == Duration.class) return JavaTimeAdapters.DURATION_ADAPTER.nullSafe();
 
     return null;
   };
@@ -53,6 +54,23 @@ public String toString() {
       }
     };
 
+  private static final JsonAdapter<Duration> DURATION_ADAPTER = new JsonAdapter<>() {
+    @Override
+    public Duration fromJson(JsonReader reader) {
+      return Duration.parse(reader.readString());
+    }
+
+    @Override
+    public void toJson(JsonWriter writer, Duration value) {
+      writer.value(value.toString());
+    }
+
+    @Override
+    public String toString() {
+      return "JsonAdapter(Duration)";
+    }
+  };
+
   private static final JsonAdapter<Instant> INSTANT_ADAPTER = new JsonAdapter<>() {
     @Override
     public Instant fromJson(JsonReader reader) {