fix'

Author: iseki0

util/src/main/java/io/kubernetes/client/Exec.java

@@ -35,7 +35,7 @@
 import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Type;
 import java.net.URLEncoder;
-import java.nio.charsets.StandardCharsets;
+import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;

util/src/main/java/io/kubernetes/client/util/ModelMapper.java

@@ -27,7 +27,7 @@
 import java.net.URI;
 import java.net.URL;
 import java.net.URLDecoder;
-import java.nio.charsets.StandardCharsets;
+import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.util.ArrayList;
 import java.util.Enumeration;

util/src/test/java/io/kubernetes/client/WebsocketStreamHandlerTest.java

@@ -21,7 +21,7 @@
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.nio.charset.Charset;
-import java.nio.charsets.StandardCharsets;
+import java.nio.charset.StandardCharsets;
 import okhttp3.Request;
 import okhttp3.WebSocket;
 import okio.ByteString;