Implement storage files in Java

This change implements storage files in java to remove the dependencies
on JNI.

Bug: 352078117
Test: atest aconfig_storage_file.test.java

Change-Id: I34438576d09d0aa31eabc60f472e71cebf1552a0
diff --git a/tools/aconfig/TEST_MAPPING b/tools/aconfig/TEST_MAPPING
index 448d8cf..15e4187 100644
--- a/tools/aconfig/TEST_MAPPING
+++ b/tools/aconfig/TEST_MAPPING
@@ -98,6 +98,10 @@
     {
       // aconfig_storage file cpp integration tests
       "name": "aconfig_storage_file.test.cpp"
+    },
+    {
+      // aconfig_storage file java integration tests
+      "name": "aconfig_storage_file.test.java"
     }
   ],
   "postsubmit": [