Fix booleans in JacksonJsonpGenerator and add tests (#327)

java-client/src/main/java/co/elastic/clients/json/jackson/JacksonJsonpGenerator.java

@@ -182,7 +182,7 @@ public JsonGenerator write(String name, double value) {
     public JsonGenerator write(String name, boolean value) {
         try {
             generator.writeFieldName(name);
-            generator.writeBooleanField(name, value);
+            generator.writeBoolean(value);
         } catch (IOException e) {
             throw JacksonUtils.convertException(e);
         }

java-client/src/test/java/co/elastic/clients/json/jackson/JacksonJsonpGeneratorTest.java

@@ -0,0 +1,90 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package co.elastic.clients.json.jackson;
+
+import jakarta.json.Json;
+import jakarta.json.JsonValue;
+import jakarta.json.stream.JsonGenerator;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.io.StringWriter;
+
+public class JacksonJsonpGeneratorTest extends Assertions {
+
+    @Test
+    public void testWrite(){
+        StringWriter sw = new StringWriter();
+        JsonGenerator generator = new JacksonJsonpMapper().jsonProvider().createGenerator(sw);
+
+        generator.writeStartObject();
+
+        // Boolean
+        generator.write("bool1", true);
+        generator.writeKey("bool2");
+        generator.write(false);
+
+        // String
+        generator.write("str1", "foo");
+        generator.writeKey("str2");
+        generator.write("bar");
+
+        // Integer
+        generator.write("int1", 42);
+        generator.writeKey("int2");
+        generator.write(1337);
+
+        // Long
+        generator.write("long1", 123456789012345L);
+        generator.writeKey("long2");
+        generator.write(123456789012345L);
+
+        generator.write("double1", 0.001);
+        generator.writeKey("double2");
+        generator.write(12345.6789);
+
+        // JsonValue
+        JsonValue jsonValue = Json.createObjectBuilder()
+            .add("bool", true)
+            .add("str", "foo")
+            .add("int", 42)
+            .add("long", 123456789012345L)
+            .add("double", 12345.6789)
+            .build();
+
+        generator.write("value", jsonValue);
+
+        generator.close();
+
+        assertEquals("{" +
+            "\"bool1\":true," +
+            "\"bool2\":false," +
+            "\"str1\":\"foo\"," +
+            "\"str2\":\"bar\"," +
+            "\"int1\":42," +
+            "\"int2\":1337," +
+            "\"long1\":123456789012345," +
+            "\"long2\":123456789012345," +
+            "\"double1\":0.001," +
+            "\"double2\":12345.6789," +
+            "\"value\":{\"bool\":true,\"str\":\"foo\",\"int\":42,\"long\":123456789012345,\"double\":12345.6789}" +
+            "}", sw.toString());
+    }
+}