diff --git a/oap-http/oap-http-test/src/main/java/oap/http/test/HttpAsserts.java b/oap-http/oap-http-test/src/main/java/oap/http/test/HttpAsserts.java
index 8e5b41aab..18d6336ab 100644
--- a/oap-http/oap-http-test/src/main/java/oap/http/test/HttpAsserts.java
+++ b/oap-http/oap-http-test/src/main/java/oap/http/test/HttpAsserts.java
@@ -49,6 +49,7 @@
 import static oap.http.test.HttpAsserts.HttpAssertion.assertHttpResponse;
 import static oap.http.test.HttpAsserts.JsonHttpAssertion.assertJsonResponse;
 import static oap.io.content.ContentReader.ofString;
+import static oap.testng.Asserts.assertString;
 import static oap.testng.Asserts.contentOfTestResource;
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -220,52 +221,52 @@ public HttpAssertion isJson( String json ) {
         }
 
         public HttpAssertion hasReason( String reasonPhrase ) {
-            assertThat( response.reasonPhrase ).isEqualTo( reasonPhrase );
+            assertString( response.reasonPhrase ).isEqualTo( reasonPhrase );
             return this;
         }
 
         public HttpAssertion reasonContains( String values ) {
-            assertThat( response.reasonPhrase ).contains( values );
+            assertString( response.reasonPhrase ).contains( values );
             return this;
         }
 
         public HttpAssertion reasonContainsPattern( Pattern pattern ) {
-            assertThat( response.reasonPhrase ).containsPattern( pattern );
+            assertString( response.reasonPhrase ).containsPattern( pattern );
             return this;
         }
 
         public HttpAssertion reasonContainsPattern( String pattern ) {
-            assertThat( response.reasonPhrase ).containsPattern( pattern );
+            assertString( response.reasonPhrase ).containsPattern( pattern );
             return this;
         }
 
         public HttpAssertion hasContentType( String contentType ) {
-            assertThat( response.contentType ).isEqualTo( contentType );
+            assertString( response.contentType ).isEqualTo( contentType );
             return this;
         }
 
         public HttpAssertion hasBody( String body ) {
-            assertThat( response.contentString() ).isEqualTo( body );
+            assertString( response.contentString() ).isEqualTo( body );
             return this;
         }
 
         public HttpAssertion bodyContains( String values ) {
-            assertThat( response.contentString() ).contains( values );
+            assertString( response.contentString() ).contains( values );
             return this;
         }
 
         public HttpAssertion bodyContainsPattern( Pattern pattern ) {
-            assertThat( response.contentString() ).containsPattern( pattern );
+            assertString( response.contentString() ).containsPattern( pattern );
             return this;
         }
 
         public HttpAssertion bodyContainsPattern( String pattern ) {
-            assertThat( response.contentString() ).containsPattern( pattern );
+            assertString( response.contentString() ).containsPattern( pattern );
             return this;
         }
 
         public HttpAssertion containsHeader( String name, String value ) {
-            assertThat( response.header( name ).orElse( null ) ).isEqualTo( value );
+            assertString( response.header( name ).orElse( null ) ).isEqualTo( value );
             return this;
         }
 
@@ -362,7 +363,7 @@ public static CookieHttpAssertion assertCookie( Cookie cookie ) {
         }
 
         public CookieHttpAssertion hasValue( String value ) {
-            assertThat( cookie.getValue() ).isEqualTo( value );
+            assertString( cookie.getValue() ).isEqualTo( value );
             return this;
         }
 
@@ -371,7 +372,7 @@ public CookieHttpAssertion hasValue( Object value ) {
         }
 
         public CookieHttpAssertion hasDomain( String domain ) {
-            assertThat( cookie.getDomain() ).isEqualTo( domain );
+            assertString( cookie.getDomain() ).isEqualTo( domain );
             return this;
         }
 
@@ -386,7 +387,7 @@ public CookieHttpAssertion expiresAfter( DateTime expiration ) {
         }
 
         public CookieHttpAssertion hasPath( String path ) {
-            assertThat( cookie.getPath() ).isEqualTo( path );
+            assertString( cookie.getPath() ).isEqualTo( path );
             return this;
         }
 
diff --git a/oap-stdlib-test/src/main/java/oap/testng/Asserts.java b/oap-stdlib-test/src/main/java/oap/testng/Asserts.java
index ba0cbe728..f75040757 100644
--- a/oap-stdlib-test/src/main/java/oap/testng/Asserts.java
+++ b/oap-stdlib-test/src/main/java/oap/testng/Asserts.java
@@ -206,7 +206,6 @@ public static String locationOfTestResource( Class<?> contetClass, @Nonnull Stri
         return "/" + contetClass.getName().replace( ".", "/" ) + ( resource.startsWith( "/" ) ? "" : "/" ) + resource;
     }
 
-    @Deprecated
     public static class StringAssertion extends AbstractCharSequenceAssert<StringAssertion, CharSequence> {
         protected StringAssertion( CharSequence value ) {
             super( value, StringAssertion.class );
diff --git a/oap-storage/oap-storage-cloud/src/main/java/oap/storage/cloud/FileSystem.java b/oap-storage/oap-storage-cloud/src/main/java/oap/storage/cloud/FileSystem.java
index 722e5e8d0..4ff754888 100644
--- a/oap-storage/oap-storage-cloud/src/main/java/oap/storage/cloud/FileSystem.java
+++ b/oap-storage/oap-storage-cloud/src/main/java/oap/storage/cloud/FileSystem.java
@@ -35,11 +35,6 @@
 public class FileSystem implements AutoCloseable {
     private static final HashMap<String, Class<? extends FileSystemCloudApi>> providers = new HashMap<>();
 
-    private static final Cache<String, FileSystemCloudApi> apis = CacheBuilder
-        .newBuilder()
-        .removalListener( rl -> Closeables.close( ( FileSystemCloudApi ) rl.getValue() ) )
-        .build();
-
     static {
         try {
             List<URL> urls = Resources.urls( FileSystem.class, "/cloud-service.properties" );
@@ -63,6 +58,10 @@ public class FileSystem implements AutoCloseable {
     }
 
     public final FileSystemConfiguration fileSystemConfiguration;
+    private final Cache<String, FileSystemCloudApi> apis = CacheBuilder
+        .newBuilder()
+        .removalListener( rl -> Closeables.close( ( FileSystemCloudApi ) rl.getValue() ) )
+        .build();
 
     public FileSystem( FileSystemConfiguration fileSystemConfiguration ) {
         this.fileSystemConfiguration = fileSystemConfiguration;
diff --git a/pom.xml b/pom.xml
index 6f164b2e5..5748e7d48 100644
--- a/pom.xml
+++ b/pom.xml
@@ -71,7 +71,7 @@
     </distributionManagement>
 
     <properties>
-        <oap.project.version>25.0.13</oap.project.version>
+        <oap.project.version>25.0.14</oap.project.version>
 
         <oap.deps.config.version>22.0.1</oap.deps.config.version>
         <oap.deps.oap-teamcity.version>25.0.0</oap.deps.oap-teamcity.version>