#807 JsonPointer double slashes validation

Author: Piotr Bugara

src/test/java/com/github/fge/jsonpatch/JsonPathParserTest.java

@@ -2,8 +2,7 @@
 
 import org.testng.annotations.Test;
 
-import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.testng.Assert.*;
+import static org.testng.Assert.assertEquals;
 
 public class JsonPathParserTest {
 
@@ -52,4 +51,10 @@ public void shouldThrowExceptionWhenDoubleSlashesInJsonPointerPath() throws Json
         String filterQuery = "/characteristic/0//age";
         JsonPathParser.tmfStringToJsonPath(filterQuery);
     }
+
+    @Test(expectedExceptions = JsonPatchException.class)
+    public void shouldThrowExceptionWhenQuestionMarkInJsonPointerPath() throws JsonPatchException {
+        String filterQuery = "/characteristic/0/age?";
+        JsonPathParser.tmfStringToJsonPath(filterQuery);
+    }
 }