fix setting a POJO as a value using JacksonJsonNodeJsonProvider (fixes #364)

json-path/src/main/java/com/jayway/jsonpath/spi/json/JacksonJsonNodeJsonProvider.java

@@ -270,7 +270,7 @@ public class JacksonJsonNodeJsonProvider extends AbstractJsonProvider {
     	} else if (value == null) {
     		objectNode.set(key.toString(), null); // this will create a null-node
     	} else {
-    		throw new IllegalArgumentException("Cannot handle object type: " + value.getClass().getName());
+    		objectNode.put(key.toString(), createJsonElement(value));
     	}
 	}
 

json-path/src/test/java/com/jayway/jsonpath/JacksonJsonNodeJsonProviderTest.java

@@ -1,5 +1,7 @@
 package com.jayway.jsonpath;
 
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.JsonNodeFactory;
@@ -9,6 +11,7 @@ import org.junit.Test;
 
 import java.io.IOException;
 import java.util.List;
+import java.util.UUID;
 
 import static com.jayway.jsonpath.JsonPath.using;
 import static org.assertj.core.api.Assertions.assertThat;
@@ -109,6 +112,16 @@ public class JacksonJsonNodeJsonProviderTest extends BaseTest {
 
         using(JACKSON_JSON_NODE_CONFIGURATION).parse(JSON).read("$", typeRef);
     }
+    
+    @Test
+    // https://github.com/json-path/JsonPath/issues/364
+    public void setPropertyWithPOJO() {
+      DocumentContext context = JsonPath.using(JACKSON_JSON_NODE_CONFIGURATION).parse("{}");
+      UUID uuid = UUID.randomUUID();
+      context.put("$", "data", new Data(uuid));
+      String id = context.read("$.data.id", String.class);
+      assertThat(id).isEqualTo(uuid.toString());
+    }
 
     public static class FooBarBaz<T> {
         public T gen;
@@ -121,5 +134,15 @@ public class JacksonJsonNodeJsonProviderTest extends BaseTest {
     public static class Gen {
         public String eric;
     }
+    
+    public static final class Data {
+      @JsonProperty("id")
+      UUID id;
+
+      @JsonCreator
+      Data(@JsonProperty("id") final UUID id) {
+        this.id = id;
+      }
+    }
 
 }