diff --git a/src/Solr/Solr.php b/src/Solr/Solr.php
index 3cdf321..3fd977e 100644
--- a/src/Solr/Solr.php
+++ b/src/Solr/Solr.php
@@ -9,6 +9,8 @@ use SilverStripe\Core\Manifest\ModuleLoader;
 use SilverStripe\FullTextSearch\Search\FullTextSearch;
 use SilverStripe\FullTextSearch\Solr\Services\Solr4Service;
 use SilverStripe\FullTextSearch\Solr\Services\Solr3Service;
+use SilverStripe\FullTextSearch\Solr\Services\SolrService;
+use SilverStripe\FullTextSearch\Solr\Services\SolrService_Core;
 
 class Solr
 {
@@ -112,14 +114,14 @@ class Solr
 
     /** @var SolrService | null - The instance of SolrService for core management */
     protected static $service_singleton = null;
-    /** @var [SolrService_Core] - The instances of SolrService_Core for each core */
+    /** @var SolrService_Core[] - The instances of SolrService_Core for each core */
     protected static $service_core_singletons = array();
 
     /**
      * Get a SolrService
      *
      * @param string $core Optional name of index class
-     * @return SolrService_Core
+     * @return SolrService|SolrService_Core
      */
     public static function service($core = null)
     {
@@ -142,9 +144,8 @@ class Solr
             }
 
             return self::$service_core_singletons[$core];
-        } else {
-            return self::$service_singleton;
         }
+        return self::$service_singleton;
     }
 
     public static function get_indexes()
diff --git a/src/Solr/SolrIndex.php b/src/Solr/SolrIndex.php
index ad175a2..00f9202 100644
--- a/src/Solr/SolrIndex.php
+++ b/src/Solr/SolrIndex.php
@@ -12,6 +12,7 @@ use SilverStripe\FullTextSearch\Search\Queries\SearchQuery;
 use SilverStripe\FullTextSearch\Search\Queries\SearchQuery_Range;
 use SilverStripe\FullTextSearch\Search\Variants\SearchVariant;
 use SilverStripe\FullTextSearch\Search\SearchIntrospection;
+use SilverStripe\FullTextSearch\Solr\Stores\SolrConfigStore;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\FieldType\DBField;
diff --git a/src/Solr/Tasks/Solr_BuildTask.php b/src/Solr/Tasks/Solr_BuildTask.php
index f9c24ec..ad3952e 100644
--- a/src/Solr/Tasks/Solr_BuildTask.php
+++ b/src/Solr/Tasks/Solr_BuildTask.php
@@ -3,6 +3,7 @@ namespace SilverStripe\FullTextSearch\Solr\Tasks;
 
 use Monolog\Handler\StreamHandler;
 use Psr\Log\LoggerInterface;
+use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Core\Injector\Injector;
 use SilverStripe\Dev\BuildTask;
 use SilverStripe\FullTextSearch\Utils\Logging\SearchLogFactory;
@@ -52,7 +53,7 @@ class Solr_BuildTask extends BuildTask
     /**
      * Setup task
      *
-     * @param SS_HTTPReqest $request
+     * @param HTTPRequest $request
      */
     public function run($request)
     {
diff --git a/src/Solr/Tasks/Solr_Configure.php b/src/Solr/Tasks/Solr_Configure.php
index 28afc98..22bdb5c 100644
--- a/src/Solr/Tasks/Solr_Configure.php
+++ b/src/Solr/Tasks/Solr_Configure.php
@@ -4,6 +4,7 @@ namespace SilverStripe\FullTextSearch\Solr\Tasks;
 use Exception;
 use SilverStripe\Core\ClassInfo;
 use SilverStripe\FullTextSearch\Solr\Solr;
+use SilverStripe\FullTextSearch\Solr\SolrIndex;
 use SilverStripe\FullTextSearch\Solr\Stores\SolrConfigStore_File;
 use SilverStripe\FullTextSearch\Solr\Stores\SolrConfigStore_WebDAV;
 use SilverStripe\FullTextSearch\Solr\Stores\SolrConfigStore;
@@ -50,29 +51,30 @@ class Solr_Configure extends Solr_BuildTask
     protected function updateIndex($instance, $store)
     {
         $index = $instance->getIndexName();
-        $this->getLogger()->addInfo("Configuring $index.");
+        $this->getLogger()->info("Configuring $index.");
 
         // Upload the config files for this index
-        $this->getLogger()->addInfo("Uploading configuration ...");
+        $this->getLogger()->info("Uploading configuration ...");
         $instance->uploadConfig($store);
 
         // Then tell Solr to use those config files
         $service = Solr::service();
         if ($service->coreIsActive($index)) {
-            $this->getLogger()->addInfo("Reloading core ...");
+            $this->getLogger()->info("Reloading core ...");
             $service->coreReload($index);
         } else {
-            $this->getLogger()->addInfo("Creating core ...");
+            $this->getLogger()->info("Creating core ...");
             $service->coreCreate($index, $store->instanceDir($index));
         }
 
-        $this->getLogger()->addInfo("Done");
+        $this->getLogger()->info("Done");
     }
 
     /**
      * Get config store
      *
      * @return SolrConfigStore
+     * @throws Exception
      */
     protected function getSolrConfigStore()
     {
@@ -85,14 +87,15 @@ class Solr_Configure extends Solr_BuildTask
         // Find the IndexStore handler, which will handle uploading config files to Solr
         $mode = $indexstore['mode'];
 
-        if ($mode == 'file') {
+        if ($mode === 'file') {
             return new SolrConfigStore_File($indexstore);
-        } elseif ($mode == 'webdav') {
-            return new SolrConfigStore_WebDAV($indexstore);
-        } elseif (ClassInfo::exists($mode) && ClassInfo::classImplements($mode, SolrConfigStore::class)) {
-            return new $mode($indexstore);
-        } else {
-            user_error('Unknown Solr index mode ' . $indexstore['mode'], E_USER_ERROR);
         }
+        if ($mode === 'webdav') {
+            return new SolrConfigStore_WebDAV($indexstore);
+        }
+        if (ClassInfo::exists($mode) && ClassInfo::classImplements($mode, SolrConfigStore::class)) {
+            return new $mode($indexstore);
+        }
+        user_error('Unknown Solr index mode ' . $indexstore['mode'], E_USER_ERROR);
     }
 }
diff --git a/src/Utils/Logging/SearchLogFactory.php b/src/Utils/Logging/SearchLogFactory.php
index 230ee62..5e98e5a 100644
--- a/src/Utils/Logging/SearchLogFactory.php
+++ b/src/Utils/Logging/SearchLogFactory.php
@@ -3,6 +3,7 @@
 namespace SilverStripe\FullTextSearch\Utils\Logging;
 
 use Psr\Log;
+use Symbiote\QueuedJobs\Services\QueuedJob;
 
 interface SearchLogFactory
 {
@@ -10,7 +11,7 @@ interface SearchLogFactory
      * Make a logger for a queuedjob
      *
      * @param QueuedJob $job
-     * @return Log
+     * @return Log\LoggerInterface
      */
     public function getQueuedJobLogger($job);
 
@@ -19,7 +20,7 @@ interface SearchLogFactory
      *
      * @param string $name
      * @param bool $verbose
-     * @return Log
+     * @return Log\LoggerInterface
      */
     public function getOutputLogger($name, $verbose);
 }