Java 11497 (#12399)

* Added/created parent module (json-modules)

* moved json(submodule) to json-modules(parent)

* moved json-2(submodule) to json-modules(parent)

* moved json-path(submodule) to json-modules(parent)

* moved gson(submodule) to json-modules(parent)

* deleted sub-modules that we moved to json-modules

Co-authored-by: panagiotiskakos <panagiotis.kakos@libra-is.com>

json-modules/json-2/src/main/java/com/baeldung/jsonoptimization/CustomerSlimSerializer.java

@@ -0,0 +1,28 @@
+package com.baeldung.jsonoptimization;
+
+import java.io.IOException;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+
+public class CustomerSlimSerializer extends StdSerializer<CustomerSlim> {
+    private static final long serialVersionUID = 1L;
+
+    public CustomerSlimSerializer() {
+        this(null);
+    }
+
+    public CustomerSlimSerializer(Class<CustomerSlim> t) {
+        super(t);
+    }
+
+    @Override
+    public void serialize(CustomerSlim customer, JsonGenerator jsonGenerator, SerializerProvider serializer) throws IOException {
+        jsonGenerator.writeStartArray();
+        jsonGenerator.writeNumber(customer.getId());
+        jsonGenerator.writeString(customer.getName());
+        jsonGenerator.writeString(customer.getAddress());
+        jsonGenerator.writeEndArray();
+    }
+}