Fix errorprone warnings that should be errors am: b19663bf5e am: 8305b2e3ed am: 821494b2b2

Original change: https://android-review.googlesource.com/c/platform/external/javaparser/+/2256801

Change-Id: I8ceb045ddcbbef438ff2a3567dcccab39930d477
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/Android.bp b/Android.bp
index 64dc07c..0d8f79d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -65,6 +65,14 @@
         "javaparser-core/src/main/javacc-support/**/*.java",
         "javaparser-core/generated-sources/**/*.java",
     ],
+
+    errorprone: {
+        javacflags: [
+            "-Xep:IdentityBinaryExpression:WARN",
+            "-Xep:DangerousLiteralNull:WARN",
+            "-Xep:DoubleBraceInitialization:WARN",
+        ],
+    },
 }
 
 java_library_host {