Querydsl 5.0.0 serialization fix (#515)

* Fix serialization of constructor args

* Fix serialization of constructor args

---------

Co-authored-by: kholysz <[email protected]>
Co-authored-by: kkrzywanski <[email protected]>

Author: 3 people

querydsl-core/src/main/java/com/querydsl/core/types/ConstructorExpression.java

@@ -149,7 +149,7 @@ public T newInstance(Object... args) {
   }
 
   private void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException {
-    ois.readObject();
+    ois.defaultReadObject();
     try {
       Field constructor = ConstructorExpression.class.getDeclaredField("constructor");
       constructor.setAccessible(true);

querydsl-core/src/test/java/com/querydsl/core/types/ConstructorExpressionTest.java

@@ -131,4 +131,16 @@ public void run() {
         };
     ThreadSafety.check(invoker, invoker);
   }
+
+  @Test
+  public void constructorArgsShouldBeSerialized() {
+    Expression<Long> longArg = ConstantImpl.create(1L);
+    Expression<String> stringArg = ConstantImpl.create("");
+    ConstructorExpression<ProjectionExample> projection =
+        new ConstructorExpression<ProjectionExample>(
+            ProjectionExample.class, new Class<?>[] {long.class, String.class}, longArg, stringArg);
+    ConstructorExpression<ProjectionExample> deserializationResult =
+        Serialization.serialize(projection);
+    assertEquals(projection, deserializationResult);
+  }
 }