diff --git a/src/io/flutter/test/DartTestEventsConverterZ.java b/src/io/flutter/test/DartTestEventsConverterZ.java
index 35398351a..04eea63e0 100644
--- a/src/io/flutter/test/DartTestEventsConverterZ.java
+++ b/src/io/flutter/test/DartTestEventsConverterZ.java
@@ -101,7 +101,7 @@ public DartTestEventsConverterZ(@NotNull final String testFrameworkName,
                                   @NotNull final DartUrlResolver urlResolver) {
     super(testFrameworkName, consoleProperties);
     myUrlResolver = urlResolver;
-    myTestIdToTimestamp = new HashMap();
+    myTestIdToTimestamp = new HashMap<>();
     myTestData = new HashMap<>();
     myGroupData = new HashMap<>();
     mySuiteData = new HashMap<>();