works now

stub/.gitignore

@@ -0,0 +1 @@
+/build

stub/build.gradle.kts

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+plugins {
+    alias(libs.plugins.android.library)
+}
+
+android {
+    namespace = "io.github.a13e300.stub"
+    defaultConfig {
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+}
+
+dependencies {
+    compileOnly(libs.annotation)
+}

stub/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

stub/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest/>

stub/src/main/java/android/content/pm/IPackageManager.java

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+package android.content.pm;
+
+import android.os.IBinder;
+
+public interface IPackageManager {
+    String[] getPackagesForUid(int uid);
+
+    class Stub {
+        public static IPackageManager asInterface(IBinder binder) {
+            throw new RuntimeException("");
+        }
+    }
+}

stub/src/main/java/android/os/ServiceManager.java

@@ -0,0 +1,19 @@
+package android.os;
+
+public class ServiceManager {
+    public static IBinder getService(String name) {
+        throw new UnsupportedOperationException("STUB!");
+    }
+
+    public static void addService(String name, IBinder binder) {
+        throw new UnsupportedOperationException("STUB!");
+    }
+
+    public static IBinder checkService(String name) {
+        throw new UnsupportedOperationException("STUB!");
+    }
+
+    public static String[] listServices() {
+        throw new UnsupportedOperationException("STUB!");
+    }
+}

stub/src/main/java/android/system/keystore2/IKeystoreService.java

@@ -0,0 +1,9 @@
+package android.system.keystore2;
+
+public interface IKeystoreService {
+    String DESCRIPTOR = "android.system.keystore2.IKeystoreService";
+
+    class Stub {
+
+    }
+}

stub/src/main/java/android/system/keystore2/KeyDescriptor.java

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+package android.system.keystore2;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import androidx.annotation.NonNull;
+
+public class KeyDescriptor implements Parcelable {
+    public String alias;
+    public byte[] blob;
+    public int domain = 0;
+    public long nspace = 0;
+
+    protected KeyDescriptor(Parcel in) {
+        throw new RuntimeException("");
+    }
+
+    public static final Creator<KeyDescriptor> CREATOR = new Creator<KeyDescriptor>() {
+        @Override
+        public KeyDescriptor createFromParcel(Parcel in) {
+            return new KeyDescriptor(in);
+        }
+
+        @Override
+        public KeyDescriptor[] newArray(int size) {
+            return new KeyDescriptor[size];
+        }
+    };
+
+    @Override
+    public int describeContents() {
+        throw new RuntimeException("");
+    }
+
+    @Override
+    public void writeToParcel(@NonNull Parcel parcel, int i) {
+        throw new RuntimeException("");
+    }
+}

stub/src/main/java/android/system/keystore2/KeyEntryResponse.java

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+package android.system.keystore2;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import androidx.annotation.NonNull;
+
+public class KeyEntryResponse implements Parcelable {
+    // public IKeystoreSecurityLevel iSecurityLevel;
+    public KeyMetadata metadata;
+
+    protected KeyEntryResponse(Parcel in) {
+        throw new RuntimeException("");
+    }
+
+    public static final Creator<KeyEntryResponse> CREATOR = new Creator<KeyEntryResponse>() {
+        @Override
+        public KeyEntryResponse createFromParcel(Parcel in) {
+            throw new RuntimeException("");
+        }
+
+        @Override
+        public KeyEntryResponse[] newArray(int size) {
+            throw new RuntimeException("");
+        }
+    };
+
+    @Override
+    public int describeContents() {
+        throw new RuntimeException("");
+    }
+
+    @Override
+    public void writeToParcel(@NonNull Parcel parcel, int i) {
+        throw new RuntimeException("");
+    }
+}

stub/src/main/java/android/system/keystore2/KeyMetadata.java

@@ -0,0 +1,41 @@
+package android.system.keystore2;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import androidx.annotation.NonNull;
+
+public class KeyMetadata implements Parcelable {
+    // public Authorization[] authorizations;
+    public byte[] certificate;
+    public byte[] certificateChain;
+    public KeyDescriptor key;
+    public int keySecurityLevel = 0;
+    public long modificationTimeMs = 0;
+
+    protected KeyMetadata(Parcel in) {
+        throw new RuntimeException("");
+    }
+
+    public static final Creator<KeyMetadata> CREATOR = new Creator<KeyMetadata>() {
+        @Override
+        public KeyMetadata createFromParcel(Parcel in) {
+            throw new RuntimeException("");
+        }
+
+        @Override
+        public KeyMetadata[] newArray(int size) {
+            throw new RuntimeException("");
+        }
+    };
+
+    @Override
+    public int describeContents() {
+        throw new RuntimeException("");
+    }
+
+    @Override
+    public void writeToParcel(@NonNull Parcel parcel, int i) {
+        throw new RuntimeException("");
+    }
+}