#1722 - Failing test for - L2 cache throw exception when query with custom ManyToMany relation model

src/test/java/org/tests/cache/embeddedid/CEPCategory.java

@@ -0,0 +1,48 @@
+package org.tests.cache.embeddedid;
+
+import io.ebean.annotation.Cache;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Version;
+
+@Cache
+@Entity
+public class CEPCategory {
+
+  @Id
+  private Long id;
+
+  private String name;
+
+  @Version
+  private Long version;
+
+  public CEPCategory(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 Long getVersion() {
+    return version;
+  }
+
+  public void setVersion(Long version) {
+    this.version = version;
+  }
+}

src/test/java/org/tests/cache/embeddedid/CEPProduct.java

@@ -0,0 +1,64 @@
+package org.tests.cache.embeddedid;
+
+import io.ebean.annotation.Cache;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.OrderColumn;
+import javax.persistence.Version;
+import java.util.List;
+
+@Cache
+@Entity
+public class CEPProduct {
+
+  @Id
+  private Long id;
+
+  private String name;
+
+  @OrderColumn(name = "priority")
+  @OneToMany(cascade = CascadeType.ALL, mappedBy = "product")
+  private List<CEPProductCategory> productCategories;
+
+  @Version
+  private Long version;
+
+  public CEPProduct(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 Long getVersion() {
+    return version;
+  }
+
+  public void setVersion(Long version) {
+    this.version = version;
+  }
+
+  public List<CEPProductCategory> getProductCategories() {
+    return productCategories;
+  }
+
+  public void setProductCategories(List<CEPProductCategory> productCategories) {
+    this.productCategories = productCategories;
+  }
+}

src/test/java/org/tests/cache/embeddedid/CEPProductCategory.java

@@ -0,0 +1,40 @@
+package org.tests.cache.embeddedid;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.IdClass;
+import javax.persistence.ManyToOne;
+
+@IdClass(CEPProductCategoryId.class)
+@Entity
+public class CEPProductCategory {
+
+  @Id
+  @ManyToOne
+  private CEPCategory category;
+
+  @Id
+  @ManyToOne
+  private CEPProduct product;
+
+  public CEPProductCategory(CEPCategory category, CEPProduct product) {
+    this.category = category;
+    this.product = product;
+  }
+
+  public CEPCategory getCategory() {
+    return category;
+  }
+
+  public void setCategory(CEPCategory category) {
+    this.category = category;
+  }
+
+  public CEPProduct getProduct() {
+    return product;
+  }
+
+  public void setProduct(CEPProduct product) {
+    this.product = product;
+  }
+}

src/test/java/org/tests/cache/embeddedid/CEPProductCategoryId.java

@@ -0,0 +1,42 @@
+package org.tests.cache.embeddedid;
+
+import javax.persistence.Embeddable;
+import java.util.Objects;
+
+@Embeddable
+public class CEPProductCategoryId {
+
+  // primitive id values as part of an EmbeddedId (NPE #1722)
+  private long customerId;
+  private long addressId;
+
+  public long getCustomerId() {
+    return customerId;
+  }
+
+  public void setCustomerId(long customerId) {
+    this.customerId = customerId;
+  }
+
+  public long getAddressId() {
+    return addressId;
+  }
+
+  public void setAddressId(long addressId) {
+    this.addressId = addressId;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) return true;
+    if (o == null || getClass() != o.getClass()) return false;
+    CEPProductCategoryId that = (CEPProductCategoryId) o;
+    return customerId == that.customerId &&
+      addressId == that.addressId;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(customerId, addressId);
+  }
+}

src/test/java/org/tests/cache/embeddedid/TestBeanCacheEmbeddedIdPrimitives.java

@@ -0,0 +1,44 @@
+package org.tests.cache.embeddedid;
+
+import io.ebean.Ebean;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertNotNull;
+
+public class TestBeanCacheEmbeddedIdPrimitives {
+
+  @Test
+  public void findById() {
+
+    CEPProduct product1a = new CEPProduct("Product 01");
+    Ebean.save(product1a);
+
+    assertNotNull(product1a.getId());
+
+    CEPCategory category1a = new CEPCategory("Category 01");
+    Ebean.save(category1a);
+
+    assertNotNull(category1a.getId());
+
+    CEPProduct product1 = Ebean.find(CEPProduct.class).setUseCache(true).where().eq("id", product1a.getId()).findOne();
+
+    assertNotNull(product1);
+
+    product1.getProductCategories().forEach(customerAddress -> {
+      System.out.println(customerAddress.getCategory());
+    });
+    assertThat(product1.getProductCategories()).isEmpty();
+
+    CEPProduct product2 = Ebean.find(CEPProduct.class).setUseCache(true).where().eq("id", product1a.getId()).findOne();
+    assertNotNull(product2);
+
+    // fail here on null -> long conversion in embedded id
+    product2.getProductCategories().forEach(customerAddress -> {
+      System.out.println(customerAddress.getCategory());
+    });
+    assertThat(product2.getProductCategories()).isEmpty();
+  }
+
+
+}