Simplify and modernize

2 files changed, 3 insertions, 5 deletions

diff --git a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/core/MetricsManager.java b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/core/MetricsManager.java
index a3b02e608c2..ab1c2e70735 100644
--- a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/core/MetricsManager.java
+++ b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/core/MetricsManager.java
@@ -24,7 +24,6 @@ import java.util.stream.Collectors;
 
 import static ai.vespa.metricsproxy.metric.ExternalMetrics.extractConfigserverDimensions;
 import static java.util.logging.Level.FINE;
-import static java.util.stream.Collectors.toList;
 
 /**
  * Retrieves metrics and performs necessary conversions and additions of metadata.
@@ -100,7 +99,7 @@ public class MetricsManager {
 
     private MetricsPacket.Builder [] getMetricsBuildersAsArray(List<VespaService> services, Instant startTime, ConsumerId consumerId) {
         List<MetricsPacket.Builder> builders = getMetricsAsBuilders(services, startTime, consumerId);
-        return builders.toArray(new MetricsPacket.Builder[builders.size()]);
+        return builders.toArray(new MetricsPacket.Builder[0]);
     }
 
     /**
@@ -119,7 +118,7 @@ public class MetricsManager {
         purgeStaleMetrics();
         List<MetricsPacket.Builder> externalPackets = externalMetrics.getMetrics().stream()
                 .filter(MetricsPacket.Builder::hasMetrics)
-                .collect(toList());
+                .toList();
         log.log(FINE, () -> "Got " + externalPackets.size() + " external metrics packets with whitelisted metrics.");
 
         result.addAll(externalPackets);
diff --git a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/http/metrics/MetricsV2Handler.java b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/http/metrics/MetricsV2Handler.java
index 468a61baa88..339f06c67b8 100644
--- a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/http/metrics/MetricsV2Handler.java
+++ b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/http/metrics/MetricsV2Handler.java
@@ -30,7 +30,6 @@ import static ai.vespa.metricsproxy.metric.model.json.GenericJsonUtil.toGenericA
 import static ai.vespa.metricsproxy.metric.model.processing.MetricsProcessor.applyProcessors;
 import static com.yahoo.jdisc.Response.Status.INTERNAL_SERVER_ERROR;
 import static com.yahoo.jdisc.Response.Status.OK;
-import static java.util.Collections.singletonMap;
 
 /**
  * Http handler for the metrics/v2 rest api.
@@ -72,7 +71,7 @@ public class MetricsV2Handler  extends HttpHandlerBase {
                                                           new PublicDimensionsProcessor(MAX_DIMENSIONS));
 
             Node localNode = new Node(nodeInfoConfig.role(), nodeInfoConfig.hostname(), 0, "");
-            Map<Node, List<MetricsPacket>> metricsByNode = singletonMap(localNode, metrics);
+            Map<Node, List<MetricsPacket>> metricsByNode = Map.of(localNode, metrics);
             return new JsonResponse(OK, toGenericApplicationModel(metricsByNode).serialize());
         } catch (Exception e) {
             log.log(Level.WARNING, "Got exception when rendering metrics:", e);