Fix for Issue 72 - Bug - models.Role cannot be cast to java.util.Map [error] at com.avaje.ebeaninternal.server.persist.DefaultPersister.saveAssocManyDetails(DefaultPersister.java:877)

src/test/java/com/avaje/tests/model/map/MpRole.java

@@ -0,0 +1,28 @@
+package com.avaje.tests.model.map;
+
+import javax.persistence.*;
+
+@Entity
+public class MpRole {
+
+  @Id
+  private Long id;
+
+  private Long organizationId;
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public Long getOrganizationId() {
+    return organizationId;
+  }
+
+  public void setOrganizationId(Long organizationId) {
+    this.organizationId = organizationId;
+  }
+}

src/test/java/com/avaje/tests/model/map/MpUser.java

@@ -0,0 +1,45 @@
+package com.avaje.tests.model.map;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.*;
+
+@Entity
+public class MpUser {
+
+  @Id
+  private Long id;
+
+  private String name;
+
+  @OneToMany(cascade = CascadeType.ALL)
+  @MapKey(name = "id")
+  public Map<Long, MpRole> roles = new HashMap<Long, MpRole>();
+
+  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 Map<Long, MpRole> getRoles() {
+    return roles;
+  }
+
+  public void setRoles(Map<Long, MpRole> roles) {
+    this.roles = roles;
+  }
+}

src/test/java/com/avaje/tests/query/other/TestOneToManyAsMap.java

@@ -0,0 +1,42 @@
+package com.avaje.tests.query.other;
+
+import java.util.Map;
+
+import junit.framework.Assert;
+
+import org.junit.Test;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.ebean.EbeanServer;
+import com.avaje.tests.model.map.MpRole;
+import com.avaje.tests.model.map.MpUser;
+
+public class TestOneToManyAsMap extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    EbeanServer eServer = Ebean.getServer(null);
+
+    MpUser u = new MpUser();
+    eServer.save(u);
+
+    MpUser u2 = eServer.find(MpUser.class, u.getId());
+    Assert.assertNotNull(u2);
+
+    u2.setName("Charlie Brown");
+    MpRole ourl = new MpRole();
+    ourl.setOrganizationId(47L);
+    u2.getRoles().put(ourl.getOrganizationId(), ourl);
+    eServer.save(u2);
+
+    MpUser u3 = eServer.find(MpUser.class, u.getId());
+    Assert.assertEquals("Charlie Brown", u3.getName());
+
+    Map<Long, MpRole> listMap = u3.getRoles();
+    Assert.assertEquals(1, listMap.size());
+
+  }
+
+}