#592 - Fetched empty collection of null child of parent entity

src/test/java/com/avaje/tests/model/tevent/TEvent.java

@@ -0,0 +1,57 @@
+package com.avaje.tests.model.tevent;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+import javax.persistence.Version;
+
+@Entity
+public class TEvent {
+
+  @Id
+  Long id;
+
+  String name;
+
+  @OneToOne(mappedBy = "event")
+  TEventOne one;
+
+  @Version
+  Long version;
+
+  public TEvent(String name) {
+    this.name = name;
+  }
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public TEventOne getOne() {
+    return one;
+  }
+
+  public void setOne(TEventOne one) {
+    this.one = one;
+  }
+
+  public Long getVersion() {
+    return version;
+  }
+
+  public void setVersion(Long version) {
+    this.version = version;
+  }
+}

src/test/java/com/avaje/tests/model/tevent/TEventMany.java

@@ -0,0 +1,53 @@
+package com.avaje.tests.model.tevent;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+import javax.persistence.Version;
+
+@Entity
+public class TEventMany {
+
+  @Id
+  Long id;
+
+  String many;
+
+  @ManyToOne
+  TEventOne one;
+
+  @Version
+  Long version;
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public String getMany() {
+    return many;
+  }
+
+  public void setMany(String many) {
+    this.many = many;
+  }
+
+  public TEventOne getOne() {
+    return one;
+  }
+
+  public void setOne(TEventOne one) {
+    this.one = one;
+  }
+
+  public Long getVersion() {
+    return version;
+  }
+
+  public void setVersion(Long version) {
+    this.version = version;
+  }
+}

src/test/java/com/avaje/tests/model/tevent/TEventOne.java

@@ -0,0 +1,66 @@
+package com.avaje.tests.model.tevent;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.OneToOne;
+import javax.persistence.Version;
+import java.util.List;
+
+@Entity
+public class TEventOne {
+
+  @Id
+  Long id;
+
+  String one;
+
+  @Version
+  Long version;
+
+  @OneToOne
+  TEvent event;
+
+  @OneToMany(mappedBy = "one")
+  List<TEventMany> many;
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public String getOne() {
+    return one;
+  }
+
+  public void setOne(String one) {
+    this.one = one;
+  }
+
+  public Long getVersion() {
+    return version;
+  }
+
+  public void setVersion(Long version) {
+    this.version = version;
+  }
+
+  public TEvent getEvent() {
+    return event;
+  }
+
+  public void setEvent(TEvent event) {
+    this.event = event;
+  }
+
+  public List<TEventMany> getMany() {
+    return many;
+  }
+
+  public void setMany(List<TEventMany> many) {
+    this.many = many;
+  }
+}

src/test/java/com/avaje/tests/model/tevent/TestAssocOneNullTraverse.java

@@ -0,0 +1,19 @@
+package com.avaje.tests.model.tevent;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import org.junit.Test;
+
+public class TestAssocOneNullTraverse extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    TEvent event = new TEvent("event");
+    Ebean.save(event);
+
+    Ebean.find(TEvent.class)
+        .fetch("one.many")
+        .findList();
+  }
+}