Feature/enable access to the last error while revoking

agrirouter-api-java-api/src/main/java/com/dke/data/agrirouter/api/exception/OnboardingException.java

@@ -23,4 +23,5 @@ public String getMessage() {
             onboardingError.getError().getCode(), onboardingError.getError().message)
         : "There was an error during the onboarding process.";
   }
+
 }

agrirouter-api-java-api/src/main/java/com/dke/data/agrirouter/api/exception/RevokingException.java

@@ -1,9 +1,27 @@
 package com.dke.data.agrirouter.api.exception;
 
+import com.dke.data.agrirouter.api.dto.revoke.RevokingError;
+
+import java.util.Optional;
+
 public class RevokingException extends RuntimeException {
-  private final String lastError;
+    private final RevokingError revokingError;
+
+    @SuppressWarnings("OptionalUsedAsFieldOrParameterType")
+    public RevokingException(Optional<RevokingError> lastError) {
+        this.revokingError = lastError.orElse(null);
+    }
+
+    public RevokingError getRevokingError() {
+        return revokingError;
+    }
 
-  public RevokingException(String lastError) {
-    this.lastError = lastError;
-  }
+    @Override
+    public String getMessage() {
+        return null != revokingError
+                ? String.format(
+                "There was an error '%s' during the revoking, details were '%s'",
+                revokingError.getError().getCode(), revokingError.getError().message)
+                : "There was an error during the revoking process.";
+    }
 }

agrirouter-api-java-impl/src/main/java/com/dke/data/agrirouter/impl/revoke/RevokingServiceImpl.java

@@ -48,8 +48,7 @@ public RevokeResponse revoke(RevokeParameters revokeParameters) {
       if (result.getKey() == RevokeResponse.SUCCESS.getKey()) {
         return result;
       } else {
-        String lastError = response.readEntity(String.class);
-        throw new RevokingException(lastError);
+        throw new RevokingException(getLastRevokingError(response.readEntity(String.class)));
       }
     } finally {
       if (response != null) {