Encode Boolean values without XMLEncoder

src/main/java/nl/nn/testtool/MessageEncoderImpl.java

@@ -69,7 +69,10 @@ public ToStringResult toString(Object message, String charset) {
 		} else if (message instanceof String) {
 			toStringResult = new ToStringResult((String)message, null);
 		} else {
-			if (message instanceof byte[]) {
+			if (message instanceof Boolean) {
+				toStringResult = new ToStringResult(Boolean.toString((Boolean) message), null, Boolean.class.getName());
+			}
+			else if (message instanceof byte[]) {
 				String encoding;
 				if (charset == null) {
 					charset = "UTF-8";
@@ -147,6 +150,11 @@ public <T> T toObject(Checkpoint originalCheckpoint, T messageToStub) {
 		} else {
 			String message = originalCheckpoint.getMessage();
 			String encoding = originalCheckpoint.getEncoding();
+			String messageClassName = originalCheckpoint.getMessageClassName();
+			if (messageClassName.equals(Boolean.class.getName())) {
+				Object rawResult = Boolean.valueOf(message);
+				return (T) rawResult;
+			}
 			if (encoding == null) {
 				if (originalCheckpoint.getStreaming() == null) {
 					return (T)message;

src/test/java/nl/nn/testtool/MessageEncoderTest.java

@@ -0,0 +1,43 @@
+package nl.nn.testtool;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class MessageEncoderTest {
+    @Test
+    public void encode_and_decode_boolean_true() {
+        MessageEncoder instance = new MessageEncoderImpl();
+        MessageEncoder.ToStringResult encoded = instance.toString(true, null);
+        assertEquals("true", encoded.getString());
+        assertEquals("java.lang.Boolean", encoded.getMessageClassName());
+        Checkpoint checkpoint = new Checkpoint();
+        checkpoint.setMessage(encoded.getString());
+        checkpoint.setEncoding(encoded.getEncoding());
+        checkpoint.setMessageClassName(encoded.getMessageClassName());
+        Object back = instance.toObject(checkpoint);
+        if(! (back instanceof Boolean)) {
+            fail("Expected to get back Boolean");
+        }
+        assertTrue((Boolean) back);
+    }
+
+    @Test
+    public void encode_decode_boolean_false() {
+        MessageEncoder instance = new MessageEncoderImpl();
+        MessageEncoder.ToStringResult encoded = instance.toString(false, null);
+        assertEquals("false", encoded.getString());
+        assertEquals("java.lang.Boolean", encoded.getMessageClassName());
+        Checkpoint checkpoint = new Checkpoint();
+        checkpoint.setMessage(encoded.getString());
+        checkpoint.setEncoding(encoded.getEncoding());
+        checkpoint.setMessageClassName(encoded.getMessageClassName());
+        Object back = instance.toObject(checkpoint);
+        if(! (back instanceof Boolean)) {
+            fail("Expected to get back Boolean");
+        }
+        assertFalse((Boolean) back);
+    }
+}