Fix quality flaw

Author: henryju

lib/src/main/java/org/sonarsource/scanner/lib/internal/JavaRunnerFactory.java

@@ -129,7 +129,7 @@ private Path findJavaInPath(String javaExe) {
     }
   }
 
-  private Optional<CachedFile> getJreFromServer(ServerConnection serverConnection, FileCache fileCache, Map<String, String> properties, boolean retry) {
+  private static Optional<CachedFile> getJreFromServer(ServerConnection serverConnection, FileCache fileCache, Map<String, String> properties, boolean retry) {
     String os = properties.get(SCANNER_OS);
     String arch = properties.get(SCANNER_ARCH);
     LOG.info("JRE provisioning: os[{}], arch[{}]", os, arch);

lib/src/main/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactory.java

@@ -36,7 +36,6 @@
 import okhttp3.JavaNetCookieJar;
 import okhttp3.OkHttpClient;
 import okhttp3.logging.HttpLoggingInterceptor;
-import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.sonarsource.scanner.lib.ScannerProperties;