set test java to 25, remove deprecated usage

Signed-off-by: Gregor Zeitlinger <[email protected]>

Author: zeitlinger

integration-tests/it-common/src/test/java/io/prometheus/client/it/common/ExporterTest.java

@@ -9,8 +9,8 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.HttpURLConnection;
+import java.net.URI;
 import java.net.URISyntaxException;
-import java.net.URL;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -68,18 +68,18 @@ protected Response scrape(String method, String queryString, String... requestHe
       throws IOException {
     return scrape(
         method,
-        new URL(
+        URI.create(
             "http://localhost:"
                 + sampleAppContainer.getMappedPort(9400)
                 + "/metrics?"
                 + queryString),
         requestHeaders);
   }
 
-  public static Response scrape(String method, URL url, String... requestHeaders)
+  public static Response scrape(String method, URI uri, String... requestHeaders)
       throws IOException {
     long timeoutMillis = TimeUnit.SECONDS.toMillis(5);
-    HttpURLConnection con = (HttpURLConnection) url.openConnection();
+    HttpURLConnection con = (HttpURLConnection) uri.toURL().openConnection();
     con.setRequestMethod(method);
     for (int i = 0; i < requestHeaders.length; i += 2) {
       con.setRequestProperty(requestHeaders[i], requestHeaders[i + 1]);
@@ -111,7 +111,7 @@ public static Response scrape(String method, URL url, String... requestHeaders)
     if (exception != null) {
       exception.printStackTrace();
     }
-    fail("timeout while getting metrics from " + url);
+    fail("timeout while getting metrics from " + uri);
     return null; // will not happen
   }
 

integration-tests/it-spring-boot-smoke-test/src/test/java/io/prometheus/metrics/it/springboot/ApplicationTest.java

@@ -5,7 +5,7 @@
 import io.prometheus.client.it.common.ExporterTest;
 import io.prometheus.metrics.expositionformats.generated.com_google_protobuf_4_32_1.Metrics;
 import java.io.IOException;
-import java.net.URL;
+import java.net.URI;
 import java.util.List;
 import java.util.Optional;
 import org.junit.jupiter.api.Test;
@@ -20,7 +20,7 @@ public void testPrometheusProtobufFormat() throws IOException {
     ExporterTest.Response response =
         ExporterTest.scrape(
             "GET",
-            new URL("http://localhost:8080/actuator/prometheus"),
+            URI.create("http://localhost:8080/actuator/prometheus"),
             "Accept",
             "application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily;"
                 + " encoding=delimited");