Fixes encoding issue in url param for search (#840)

fixes encoding issue in url param for search params

impl/src/main/java/com/okta/sdk/impl/client/DefaultClientBuilder.java

@@ -75,6 +75,7 @@
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.DefaultUriBuilderFactory;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -429,6 +430,10 @@ private RestTemplate restTemplate(ClientConfiguration clientConfig) {
         restTemplate.setErrorHandler(new ErrorHandler());
         restTemplate.setRequestFactory(requestFactory(clientConfig));
 
+        DefaultUriBuilderFactory uriTemplateHandler = new DefaultUriBuilderFactory();
+        uriTemplateHandler.setEncodingMode(DefaultUriBuilderFactory.EncodingMode.VALUES_ONLY);
+        restTemplate.setUriTemplateHandler(uriTemplateHandler);
+
         return restTemplate;
     }
 

integration-tests/src/test/groovy/com/okta/sdk/tests/it/UsersIT.groovy

@@ -163,6 +163,32 @@ class UsersIT extends ITSupport {
         assertThat(retrievedUser.id, equalTo(user.id))
     }
 
+    @Test (groups = "group2")
+    @Scenario("user-with-plus-sign-in-email")
+    void filterUserTest() {
+        def password = 'Passw0rd!2@3#'
+        def firstName = 'John'
+        def lastName = 'hashtag'
+        def email = firstName + "+" + lastName + "@example.com"
+
+        UserApi userApi = new UserApi(getClient())
+
+        User user = UserBuilder.instance()
+            .setEmail(email)
+            .setFirstName(firstName)
+            .setLastName(lastName)
+            .setPassword(password.toCharArray())
+            .buildAndCreate(userApi)
+        registerForCleanup(user)
+        validateUser(user, firstName, lastName, email)
+
+        Thread.sleep(getTestOperationDelay())
+
+        List<User> users = userApi.listUsers(null, null, null, "profile.login eq \"${email}\"", null, null, null)
+
+        assertUserPresent(users, user)
+    }
+
     @Test (groups = "group2")
     @Scenario("user-role-assign")
     void roleAssignTest() {