diff --git a/tools/aconfig/src/codegen_java.rs b/tools/aconfig/src/codegen_java.rs
index 702ef22..c4fc405 100644
--- a/tools/aconfig/src/codegen_java.rs
+++ b/tools/aconfig/src/codegen_java.rs
@@ -214,12 +214,12 @@
             return value;
         }
         private Map<String, Boolean> mFlagMap = new HashMap<>(
-            Map.of(
-                Flags.FLAG_DISABLED_RO, false,
-                Flags.FLAG_DISABLED_RW, false,
-                Flags.FLAG_ENABLED_FIXED_RO, false,
-                Flags.FLAG_ENABLED_RO, false,
-                Flags.FLAG_ENABLED_RW, false
+            Map.ofEntries(
+                Map.entry(Flags.FLAG_DISABLED_RO, false),
+                Map.entry(Flags.FLAG_DISABLED_RW, false),
+                Map.entry(Flags.FLAG_ENABLED_FIXED_RO, false),
+                Map.entry(Flags.FLAG_ENABLED_RO, false),
+                Map.entry(Flags.FLAG_ENABLED_RW, false)
             )
         );
     }
diff --git a/tools/aconfig/templates/FakeFeatureFlagsImpl.java.template b/tools/aconfig/templates/FakeFeatureFlagsImpl.java.template
index e4a1fb7..d2cea95 100644
--- a/tools/aconfig/templates/FakeFeatureFlagsImpl.java.template
+++ b/tools/aconfig/templates/FakeFeatureFlagsImpl.java.template
@@ -37,9 +37,10 @@
     }
 
     private Map<String, Boolean> mFlagMap = new HashMap<>(
-        Map.of(
+        Map.ofEntries(
             {{-for item in class_elements}}
-            Flags.FLAG_{item.flag_name_constant_suffix}, false{{ if not @last }},{{ endif }}
+            Map.entry(Flags.FLAG_{item.flag_name_constant_suffix}, false)
+            {{ -if not @last }},{{ endif }}
             {{ -endfor }}
         )
     );