Fixing a couple crashes in the SoundTriggerTestApp

Bug: 78269975
Test: built and ran the SoundTriggerTestApp
Change-Id: I966550a3d64e9f6a66c40e062a89f39b897aaea2
diff --git a/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/SoundTriggerTestService.java b/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/SoundTriggerTestService.java
index 00bf33a..b185a26 100644
--- a/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/SoundTriggerTestService.java
+++ b/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/SoundTriggerTestService.java
@@ -435,9 +435,10 @@
             if (!file.getName().endsWith(".properties")) {
                 continue;
             }
-            try {
+
+            try (FileInputStream in = new FileInputStream(file)) {
                 Properties properties = new Properties();
-                properties.load(new FileInputStream(file));
+                properties.load(in);
                 createModelInfo(properties);
                 loadedModel = true;
             } catch (Exception e) {