Add missing constructor hint required by hibernate PostgreSQLDialect

This commit fixes an issue where the PostgreSQLDialect contributes types to the hibernate configuration that require reflective access to the org.postgresql.util.PGobject constructor which caused:

java.lang.NoSuchMethodException: org.postgresql.util.PGobject.<init>()
        at [email protected]/java.lang.Class.getConstructor0(DynamicHub.java:3585)
        at [email protected]/java.lang.Class.getConstructor(DynamicHub.java:2271)
        at org.hibernate.dialect.PostgreSQLPGObjectJdbcType.<clinit>(PostgreSQLPGObjectJdbcType.java:50)
        at org.hibernate.dialect.PostgreSQLDialect.registerColumnTypes(PostgreSQLDialect.java:231)
        at org.hibernate.dialect.Dialect.contributeTypes(Dialect.java:1341)
        at org.hibernate.dialect.PostgreSQLDialect.contributeTypes(PostgreSQLDialect.java:1229)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:386)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:143)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1350)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1421)

Closes #131

Author: christophstrobl

metadata/org.hibernate.orm/hibernate-core/6.1.1.Final/reflect-config.json

@@ -11728,7 +11728,13 @@
       "typeReachable": "org.postgresql.Driver"
     },
     "name": "org.postgresql.util.PGobject",
-    "queryAllDeclaredMethods": true
+    "queryAllDeclaredMethods": true,
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
   },
   {
     "condition": {

tests/src/org.hibernate.orm/hibernate-core/6.1.1.Final/src/test/java/org/hibernate/orm/HibernateOrmTest.java

@@ -28,6 +28,7 @@
 import org.hibernate.annotations.TenantId;
 import org.hibernate.annotations.UpdateTimestamp;
 import org.hibernate.annotations.ValueGenerationType;
+import org.hibernate.boot.model.TypeContributions;
 import org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl;
 import org.hibernate.boot.registry.selector.internal.StrategySelectorImpl;
 import org.hibernate.boot.registry.selector.spi.StrategySelector;
@@ -48,6 +49,7 @@
 import org.hibernate.tuple.GenerationTiming;
 import org.hibernate.tuple.TenantIdGeneration;
 import org.hibernate.tuple.ValueGenerator;
+import org.hibernate.type.spi.TypeConfiguration;
 import org.junit.jupiter.api.Test;
 
 public class HibernateOrmTest {
@@ -175,6 +177,21 @@ void postgreSqlDialect() {
         assertNotNull(dialectFactory.buildDialect(Collections.singletonMap(AvailableSettings.DIALECT, "org.hibernate.dialect.PostgreSQLDialect"), () -> StubDialectResolutionInfo.INSTANCE));
     }
 
+    @Test
+    void initPostgresqlDialect() {
+
+        TypeContributions contributions = new TypeContributions() {
+            TypeConfiguration configuration = new TypeConfiguration();
+            @Override
+            public TypeConfiguration getTypeConfiguration() {
+                return configuration;
+            }
+        };
+
+        ServiceRegistry registry = new StubServiceRegistryImplementor();
+        new org.hibernate.dialect.PostgreSQLDialect().contributeTypes(contributions, registry);
+    }
+
     @Test
     void testGeneratedAnnotation() throws InstantiationException, IllegalAccessException {