fix(android): preserve typed JVM memory failures during loading

Translate actual OutOfMemoryError at the bridge boundary before upstream stringifies it. Preserve observed heap bytes, missing reasons, coroutine context and cancellation; retain SessionHolder ownership and load options. Restrict heap-specific remediation to known heap reasons and parse named bridge failure contracts once.

Coordinate bridge protocol v4, clarify doctor configuration versus target capacity, and preserve the memory primary across cleanup failure/retry. Verify controlled immediate/late/inline continuation outcomes with the pinned JAR and real JDK, focused tests, and tiny real CLI/MCP method workflows.

Actual heap exhaustion, the reported APK, pre-handshake failures, Linux and Windows remain unverified; no stress or profiling run.

Fixes #3517

bridge/android/ReaJadxBridge.java

@@ -15,7 +15,11 @@ import java.util.*;
 import java.util.concurrent.CountDownLatch;
 import java.util.stream.Collectors;
 import kotlin.Unit;
+import kotlin.ResultKt;
+import kotlin.coroutines.Continuation;
+import kotlin.coroutines.CoroutineContext;
 import kotlin.coroutines.EmptyCoroutineContext;
+import kotlin.coroutines.intrinsics.IntrinsicsKt;
 import kotlinx.coroutines.BuildersKt;
 import kotlinx.io.CoreKt;
 import kotlinx.io.JvmCoreKt;
@@ -44,6 +48,84 @@ class ReaJadxBridge {
 
   private static CallToolResult json(Object value) { return text(JSON.toJson(value), false); }
 
+  /** Translate the typed load outcome before upstream drops its exception identity. */
+  static Object loadResult(Object result) {
+    try { ResultKt.throwOnFailure(result); }
+    catch (Throwable failure) {
+      if (failure instanceof java.util.concurrent.CancellationException
+          || failure instanceof Error && !(failure instanceof OutOfMemoryError)) return result;
+      if (failure instanceof OutOfMemoryError) {
+        String reason = failure.getMessage();
+        boolean heap = "Java heap space".equals(reason) || "GC overhead limit exceeded".equals(reason);
+        Map<String, Object> reply = new LinkedHashMap<>();
+        reply.put("kind", "jvm-memory-failure");
+        reply.put("memory_area", heap ? "heap" : "unknown");
+        reply.put("exception_type", "java.lang.OutOfMemoryError");
+        if (reason != null) reply.put("message", reason);
+        reply.put("max_heap_bytes", Runtime.getRuntime().maxMemory());
+        return text(JSON.toJson(reply), true);
+      }
+      return text("load failed: " + failure.getMessage(), true);
+    }
+    SessionHolder.LoadResult loaded = (SessionHolder.LoadResult) result;
+    Map<String, Object> reply = new LinkedHashMap<>();
+    reply.put("state", "LOADED");
+    reply.put("apk_path", loaded.getApkPath());
+    reply.put("class_count", loaded.getClassCount());
+    reply.put("raw_class_count", loaded.getRawClassCount());
+    reply.put("resource_count", loaded.getResourceCount());
+    reply.put("load_duration_ms", loaded.getLoadDurationMs());
+    reply.put("decompile_timeout_ms", loaded.getDecompileTimeoutMs());
+    reply.put("threads", loaded.getThreads());
+    reply.put("code_cache_size", loaded.getCodeCacheSize());
+    reply.put("resources", loaded.getResourceMode());
+    if (!loaded.getIncludePackages().isEmpty()) reply.put("include_packages", loaded.getIncludePackages());
+    if (!loaded.getExcludePackages().isEmpty()) reply.put("exclude_packages", loaded.getExcludePackages());
+    return json(reply);
+  }
+
+  private Object load(kotlinx.serialization.json.JsonObject arguments, SessionConfig defaults,
+      Continuation<? super CallToolResult> continuation) {
+    JsonObject args = JsonParser.parseString(arguments.toString()).getAsJsonObject();
+    String path = string(args, "path");
+    SessionConfig options = defaults.withLoadOverrides(
+        optionalString(args, "include_packages"), optionalString(args, "exclude_packages"),
+        args.has("threads") ? integer(args, "threads", 1) : null,
+        args.has("code_cache_size") ? integer(args, "code_cache_size", 64) : null,
+        optionalString(args, "resources"));
+    return loadCall(next -> holder.load(path, options, next), continuation);
+  }
+
+  static Object loadCall(kotlin.jvm.functions.Function1<Continuation<SessionHolder.LoadResult>, Object> load,
+      Continuation<? super CallToolResult> continuation) {
+    var forwarded = new java.util.concurrent.atomic.AtomicBoolean();
+    Continuation<SessionHolder.LoadResult> resumed = new Continuation<>() {
+      public CoroutineContext getContext() { return continuation.getContext(); }
+      public void resumeWith(Object result) {
+        if (!forwarded.compareAndSet(false, true)) throw new IllegalStateException("Load resumed twice");
+        Object translated;
+        try { translated = loadResult(result); }
+        catch (Throwable failure) { translated = ResultKt.createFailure(failure); }
+        // Keep the consumer outside the translation catch, including inline completion.
+        continuation.resumeWith(translated);
+      }
+    };
+    Object result;
+    try { result = load.invoke(resumed); }
+    catch (Throwable failure) {
+      if (forwarded.get()) ResultKt.throwOnFailure(ResultKt.createFailure(failure));
+      result = ResultKt.createFailure(failure);
+    }
+    if (result == IntrinsicsKt.getCOROUTINE_SUSPENDED()) return result;
+    Object translated = loadResult(result);
+    ResultKt.throwOnFailure(translated);
+    return translated;
+  }
+
+  private static String optionalString(JsonObject args, String name) {
+    return args.has(name) ? string(args, name) : null;
+  }
+
   private static String string(JsonObject args, String name) {
     JsonElement value = args.get(name);
     if (value == null || !value.isJsonPrimitive() || !value.getAsJsonPrimitive().isString())
@@ -341,11 +423,12 @@ class ReaJadxBridge {
   public static void main(String[] args) throws Exception {
     PrintStream protocolOut = System.out;
     System.setOut(System.err);
-    SessionHolder holder = new SessionHolder(new SessionConfig(
-        1048576, 0, 90000L, 1, List.of(), List.of(), 64, ResourceMode.FULL));
+    SessionConfig defaults = new SessionConfig(
+        1048576, 0, 90000L, 1, List.of(), List.of(), 64, ResourceMode.FULL);
+    SessionHolder holder = new SessionHolder(defaults);
     ServerCapabilities capabilities = new ServerCapabilities(
         new ServerCapabilities.Tools(null), null, null, null, null, null, null, Map.of());
-    Server server = new Server(new Implementation("rea-jadx-bridge", "3", null, null, null),
+    Server server = new Server(new Implementation("rea-jadx-bridge", "4", null, null, null),
         new ServerOptions(capabilities), "", ignored -> Unit.INSTANCE);
     SessionToolsKt.registerSessionTools(server, holder);
     ManifestToolsKt.registerManifestTools(server, holder);
@@ -353,6 +436,10 @@ class ReaJadxBridge {
     MethodToolsKt.registerMethodTools(server, holder);
     XrefToolsKt.registerXrefTools(server, holder);
     ReaJadxBridge bridge = new ReaJadxBridge(holder);
+    Tool loadTool = server.getTools().get("load_apk").getTool();
+    server.removeTool("load_apk");
+    server.addTool(loadTool, (connection, request, continuation) ->
+        bridge.load(request.getArguments(), defaults, continuation));
     Set<String> consumed = Set.of("load_apk", "get_app_info", "get_android_manifest",
         "list_classes", "get_class_summary", "get_method_body",
         "get_xrefs_to_class", "get_xrefs_to_method");