fix assumption code

Author: diegomarquezp

google-http-client/src/test/java/com/google/api/client/http/javanet/NetHttpTransportTest.java

@@ -14,7 +14,7 @@
 
 package com.google.api.client.http.javanet;
 
-import static org.junit.Assume.assumeThat;
+import static org.junit.Assume.assumeTrue;
 
 import com.google.api.client.http.GenericUrl;
 import com.google.api.client.http.HttpTransport;
@@ -33,12 +33,9 @@
 import java.net.InetSocketAddress;
 import java.net.URL;
 import java.security.KeyStore;
-import java.util.Arrays;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import junit.framework.TestCase;
-import org.hamcrest.CoreMatchers;
-import org.hamcrest.core.Is;
 import org.junit.Test;
 
 /**
@@ -203,7 +200,7 @@ public void testDisconnectShouldNotWaitToReadResponse() throws IOException {
     // This test does not behave as expected since JDK 23
     // see https://bugs.openjdk.org/browse/JDK-6968351
     int javaVersion = Integer.parseInt(System.getProperty("java.version").split("\\.")[0]);
-    assumeThat(javaVersion < 23, CoreMatchers.is(true));
+    assumeTrue(javaVersion < 23);
     // This handler waits for 100s before returning writing content. The test should
     // timeout if disconnect waits for the response before closing the connection.
     final HttpHandler handler =