Remove wildcard imports

Author: ppkarwasz

log4j-core-test/src/test/java/org/apache/logging/log4j/core/appender/HttpAppenderBuilderTest.java

@@ -17,8 +17,9 @@
 package org.apache.logging.log4j.core.appender;
 
 import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat;
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.Mockito.*;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.mock;
 
 import java.net.MalformedURLException;
 import java.net.URL;