Fix boolean json write in JacksonJsonpGenerator.

Author: danielftavares

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 +1,41 @@
+package co.elastic.clients.json.jackson;
+
+import jakarta.json.stream.JsonGenerator;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.StringWriter;
+
+public class JacksonJsonpGeneratorTest extends Assert {
+  JacksonJsonpGenerator jacksonJsonpGenerator;
+  StringWriter sw;
+
+  @Before
+  public void setup(){
+    sw = new StringWriter();
+    jacksonJsonpGenerator= (JacksonJsonpGenerator) new JacksonJsonProvider().createGenerator(sw);
+  }
+
+  @Test
+  public void testWriteBooleanTrue(){
+    jacksonJsonpGenerator.writeStartObject();
+    jacksonJsonpGenerator.write("test", true);
+    jacksonJsonpGenerator.writeEnd();
+
+    jacksonJsonpGenerator.flush();
+
+    assertEquals("{\"test\":true}", sw.toString());
+  }
+
+  @Test
+  public void testWriteBooleanFalse(){
+    jacksonJsonpGenerator.writeStartObject();
+    jacksonJsonpGenerator.write("test", false);
+    jacksonJsonpGenerator.writeEnd();
+
+    jacksonJsonpGenerator.flush();
+
+    assertEquals("{\"test\":false}", sw.toString());
+  }
+}