Bump hibernate version and lowercase column names

Author: nvb

java/hibernate/build.gradle

@@ -12,7 +12,7 @@ repositories {
 }
 
 dependencies {
-    compile 'org.hibernate:hibernate-core:5.2.0.Final'
+    compile 'org.hibernate:hibernate-core:5.2.4.Final'
     compile 'org.postgresql:postgresql:9.4.1208'
 
     testCompile group: 'junit', name: 'junit', version: '4.11'

java/hibernate/src/main/java/com/cockroachlabs/model/Customer.java

@@ -8,10 +8,10 @@ public class Customer {
 
     @Id
     @GeneratedValue(strategy=GenerationType.IDENTITY)
-    @Column(name="ID", nullable=false, unique=true)
+    @Column(name="id", nullable=false, unique=true)
     private long id;
 
-    @Column(name="NAME")
+    @Column(name="name")
     private String name;
 
     public long getId() {

java/hibernate/src/main/java/com/cockroachlabs/model/Order.java

@@ -10,20 +10,20 @@ public class Order {
 
     @Id
     @GeneratedValue(strategy=GenerationType.IDENTITY)
-    @Column(name="ID", nullable=false, unique=true)
+    @Column(name="id", nullable=false, unique=true)
     private long id;
 
-    @Column(name="SUBTOTAL", precision=18, scale=2)
+    @Column(name="subtotal", precision=18, scale=2)
     private BigDecimal subtotal;
 
     @ManyToOne
-    @JoinColumn(name="CUSTOMER_ID")
+    @JoinColumn(name="customer_id")
     private Customer customer;
 
     @ManyToMany()
-    @JoinTable(name="PRODUCT_ORDERS",
-               joinColumns=@JoinColumn(name="ORDER_ID"),
-               inverseJoinColumns=@JoinColumn(name="PRODUCT_ID"))
+    @JoinTable(name="product_orders",
+               joinColumns=@JoinColumn(name="order_id"),
+               inverseJoinColumns=@JoinColumn(name="product_id"))
     private Set<Product> products;
 
     public long getId() {

java/hibernate/src/main/java/com/cockroachlabs/model/Product.java

@@ -10,13 +10,13 @@ public class Product {
 
     @Id
     @GeneratedValue(strategy=GenerationType.IDENTITY)
-    @Column(name="ID", nullable=false, unique=true)
+    @Column(name="id", nullable=false, unique=true)
     private long id;
 
-    @Column(name="NAME")
+    @Column(name="name")
     private String name;
 
-    @Column(name="PRODUCT", precision=18, scale=2)
+    @Column(name="product", precision=18, scale=2)
     private BigDecimal product;
 
     @ManyToMany(cascade=CascadeType.ALL, mappedBy="products")