diff --git a/src/main/java/fr/mines_stetienne/ci/saref/managers/ShaclValidationManager.java b/src/main/java/fr/mines_stetienne/ci/saref/managers/ShaclValidationManager.java
index e7065142d0f30abe348fc50af4cc1961f6778e75..41d2e4bdf4f151cde4539941b9cbcae8f01112e9 100644
--- a/src/main/java/fr/mines_stetienne/ci/saref/managers/ShaclValidationManager.java
+++ b/src/main/java/fr/mines_stetienne/ci/saref/managers/ShaclValidationManager.java
@@ -37,9 +37,8 @@ import java.nio.file.Paths;
 import java.util.Map;
 import java.util.List;
 import java.util.ArrayList;
-import java.util.HashMap;
-
-import com.fasterxml.jackson.core.type.TypeReference;
+//import java.util.HashMap;
+import org.apache.commons.lang3.StringEscapeUtils;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import fr.mines_stetienne.ci.saref.SAREFPipelineException;
 
@@ -52,7 +51,7 @@ public class ShaclValidationManager {
 
 	private static String VALIDATOR_URL = "http://localhost:8080/shacl/";
 	private final String TEXT_TURTLE = "text/turtle";
-	private final String JSON_FORMAT = "application/json";
+	private final String JSON_FORMAT = "application/json";	// application/x-www-form-urlencoded
 	private final String STRING_FORMAT = "STRING";
 
 	private String ontologyToValidate;	// file:///home/davidgnabasik/dev/real_saref4auto/ontology/saref4auto.ttl or URL
@@ -177,7 +176,7 @@ public class ShaclValidationManager {
 			try {
 				String fileStr = new String(Files.readAllBytes(Paths.get(readingFile)));
 				RuleSet ruleSet = new RuleSet();
-				ruleSet.setRuleSet(fileStr.replaceAll("[\n]","\r\n")); // still need to json-escape.
+				ruleSet.setRuleSet(fileStr); //.replaceAll("[\n]","\r\n"));
 				this.shaclFileList.add(readingFile);
 				this.ruleSetList.add(ruleSet);
 			} catch (IOException ex) {
@@ -200,7 +199,7 @@ public class ShaclValidationManager {
 		try {
 			String fileStr = new String(Files.readAllBytes(Paths.get(this.ontologyToValidate)));
 			this.validationRequest = new ValidationRequest();
-			this.validationRequest.setContentToValidate(fileStr.replaceAll("[\n]","\r\n"));  // still need to json-escape.
+			this.validationRequest.setContentToValidate(fileStr); // .replaceAll("[\n]","\r\n"));
 			this.validationRequest.setExternalRules(this.ruleSetList);
 		} catch (IOException ex) {
 			throw new SAREFPipelineException("ShaclValidationManager", "Unable to read ontology file: " + this.ontologyToValidate);
@@ -238,17 +237,14 @@ public class ShaclValidationManager {
 		try {
 			createValidationRequest(shaclFileList);
 
-			//String json = this.objectMapper.writeValueAsString(this.validationRequest);
-			//String escapedJson = StringEscapeUtils.escapeJson(json);
-			//Map<String, Object> postMap = this.objectMapper.convertValue(this.validationRequest, new TypeReference<Map<String, Object>>() {});
-			Map<String, Object> data = new HashMap<>();
-			data.put("fistname", "admin");
-			System.out.println("ValidateOntologyWithShacl...");//<<<
+			String jsonStr = this.objectMapper.writeValueAsString(this.validationRequest);
+			String escapedJson = StringEscapeUtils.escapeJson(jsonStr);
+			System.out.println(escapedJson);//<<<
 
 			HttpRequest request = HttpRequest.newBuilder()
-					.header("Content-Type", TEXT_TURTLE)    // application/x-www-form-urlencoded
+					.header("Content-Type", JSON_FORMAT)
 					.uri(URI.create(VALIDATOR_URL + "any/upload"))	// any/api/validate
-					.POST(ofForm(data))
+					.POST(HttpRequest.BodyPublishers.ofString(jsonStr)) // escapedJson
 					.build();
 
 			HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
diff --git a/src/main/resources/messages/Clause_9_4_6_Checker.properties b/src/main/resources/messages/Clause_9_4_6_Checker.properties
new file mode 100644
index 0000000000000000000000000000000000000000..7c427cfcdb9a65f02643dd63335f88e99ccf3124
--- /dev/null
+++ b/src/main/resources/messages/Clause_9_4_6_Checker.properties
@@ -0,0 +1,4 @@
+server_unavailable=The validation server is unavailable at `%s`
+ioexception=Error while accessing the local file system
+missing=The shacl directory should contain at least one file. This file shall conform to the pattern specification as defined in clause 9.4.6 in TS 103 673.
+one=If a shacl directory exists, it should contain at least one shapes.ttl file.