add issue 673 test

Signed-off-by: redmitry <redmitry@list.ru>

Author: redmitry

src/test/java/org/eclipse/yasson/jsonstructure/Issue673.java

@@ -0,0 +1,105 @@
+/*
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+
+package org.eclipse.yasson.jsonstructure;
+
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonString;
+import jakarta.json.JsonValue;
+import jakarta.json.bind.annotation.JsonbSubtype;
+import jakarta.json.bind.annotation.JsonbTypeDeserializer;
+import jakarta.json.bind.annotation.JsonbTypeInfo;
+import jakarta.json.bind.serializer.DeserializationContext;
+import jakarta.json.bind.serializer.JsonbDeserializer;
+import jakarta.json.stream.JsonParser;
+import java.lang.reflect.Type;
+import java.util.Collections;
+
+public class Issue673 {
+    
+    public static interface Referenceable {
+
+    }
+
+    public static class Reference implements Referenceable {
+
+        private String description;
+
+        public String getDescription() {
+            return description;
+        }
+
+        public void setDescription(String description) {
+            this.description = description;
+        }
+    }
+
+    public static class IRIReference implements Referenceable {
+
+        private String value;
+
+        public IRIReference() {}
+
+        public IRIReference(String value) {
+            this.value = value;
+        }
+
+        public String getValue() {
+            return value;
+        }
+
+        public void setValue(String value) {
+            this.value = value;
+        }
+    }
+
+    @JsonbTypeInfo(key = "type", value = {
+        @JsonbSubtype(alias = Location.TYPE, 
+                      type = Location.class)
+    })
+    public static interface LocationInterface {
+
+    }
+
+    public static class Location implements LocationInterface {
+
+        public final static String TYPE = "Location";
+
+        private Referenceable referenceable;
+
+        @JsonbTypeDeserializer(ReferenceableDeserializer.class)
+        public Referenceable getReference() {
+            return referenceable;
+        }
+
+        public void setReference(Referenceable referenceable) {
+            this.referenceable = referenceable;
+        }
+    }
+
+    public static class ReferenceableDeserializer implements JsonbDeserializer<Referenceable> {
+
+        @Override
+        public Referenceable deserialize(JsonParser jp, DeserializationContext dc, Type type) {
+            final JsonValue v = jp.getValue();
+            if (v instanceof JsonString str) {
+                return new IRIReference(str.getString());
+            }
+            if (v instanceof JsonObject obj) {
+                dc.deserialize(Reference.class, 
+                        Json.createParserFactory(Collections.EMPTY_MAP)
+                                .createParser(obj));
+            }
+            return null;
+        }
+    }
+
+}

src/test/java/org/eclipse/yasson/jsonstructure/JsonStructureToParserAdapterTest.java

@@ -270,4 +270,19 @@ public void testCustomJsonbDeserializer() {
         assertEquals("String value 1", result.getInner().getInnerFirst());
         assertEquals("String value 2", result.getInner().getInnerSecond());
     }
+    
+    @Test
+    public void testGetEvent() {
+        final String json = 
+        """
+        {
+            "type": "Location",
+            "reference": "dummy reference"
+        }
+        """;
+        
+        YassonJsonb jsonb = (YassonJsonb) JsonbBuilder.create(
+                new JsonbConfig().withDeserializers(new Issue673.ReferenceableDeserializer()));
+        Object result = jsonb.fromJson(json, Issue673.LocationInterface.class);
+    }
 }