[Mono.Android] suppress/solve more illink warnings (#8063)

Context: #5652
Context: https://learn.microsoft.com/dotnet/api/system.diagnostics.codeanalysis.dynamicallyaccessedmembersattribute?view=net-7.0
Context: https://devblogs.microsoft.com/dotnet/customizing-trimming-in-net-core-5/#annotating-reflection

Building an app such as:

	dotnet new android
	dotnet build -c Release -p:SuppressTrimAnalysisWarnings=false -p:TrimmerSingleWarn=false

Results in many illink/trimmer warnings:

	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniMarshalMemberBuilder.cs(57,4): warning IL2072: Java.Interop.JniRuntime.SetMarshalMemberBuilder(JniRuntime.CreationOptions): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicParameterlessConstructor' in call to 'System.Activator.CreateInstance(Type)'. The return value of method 'System.Reflection.Assembly.GetType(String)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniTypeManager.cs(464,32): warning IL2067: Java.Interop.JniRuntime.JniTypeManager.FindAndCallRegisterMethod(Type, JniNativeMethodRegistrationArguments): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicMethods', 'DynamicallyAccessedMemberTypes.NonPublicMethods' in call to 'System.Reflection.RuntimeReflectionExtensions.GetRuntimeMethods(Type)'. The parameter 'marshalType' of method 'Java.Interop.JniRuntime.JniTypeManager.FindAndCallRegisterMethod(Type, JniNativeMethodRegistrationArguments)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniTypeManager.cs(414,5): warning IL2070: Java.Interop.JniRuntime.JniTypeManager.TryLoadJniMarshalMethods(JniType, Type, String): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.NonPublicNestedTypes' in call to 'System.Type.GetNestedType(String, BindingFlags)'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniTypeManager.TryLoadJniMarshalMethods(JniType, Type, String)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniTypeManager.cs(418,5): warning IL2072: Java.Interop.JniRuntime.JniTypeManager.TryLoadJniMarshalMethods(JniType, Type, String): 'name' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicMethods' in call to 'System.Reflection.RuntimeReflectionExtensions.GetRuntimeMethod(Type, String, Type[])'. The return value of method 'System.Type.GetNestedType(String, BindingFlags)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(338,5): warning IL2070: Java.Interop.JniRuntime.JniValueManager.GetActivationConstructor(Type): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicConstructors', 'DynamicallyAccessedMemberTypes.NonPublicConstructors' in call to 'System.Type.GetConstructors(BindingFlags)'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniValueManager.GetActivationConstructor(Type)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(577,5): warning IL2060: Java.Interop.JniRuntime.JniValueManager.GetObjectArrayMarshaler(Type): Call to 'System.Reflection.MethodInfo.MakeGenericMethod(Type[])' can not be statically analyzed. It's not possible to guarantee the availability of requirements of the generic method.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(523,6): warning IL2072: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicParameterlessConstructor' in call to 'System.Activator.CreateInstance(Type)'. The return value of method 'Java.Interop.JniValueMarshalerAttribute.MarshalerType.get' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(537,5): warning IL2070: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.Interfaces' in call to 'System.Type.GetInterfaces()'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(559,27): warning IL2070: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.Interfaces' in call to 'System.Type.GetInterfaces()'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(569,6): warning IL2072: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicParameterlessConstructor' in call to 'System.Activator.CreateInstance(Type)'. The return value of method 'Java.Interop.JniValueMarshalerAttribute.MarshalerType.get' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\ManagedPeer.cs(93,5): warning IL2057: Java.Interop.ManagedPeer.Construct(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	external\Java.Interop\src\Java.Interop\Java.Interop\ManagedPeer.cs(156,5): warning IL2057: Java.Interop.ManagedPeer.GetParameterTypes(String): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	external\Java.Interop\src\Java.Interop\Java.Interop\ManagedPeer.cs(198,5): warning IL2057: Java.Interop.ManagedPeer.RegisterNativeMembers(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	src\Mono.Android\Android.Runtime\AndroidRuntime.cs(403,5): warning IL2075: Android.Runtime.AndroidTypeManager.CreateDynamicCallback(MethodInfo): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicMethods' in call to 'System.Type.GetMethod(String)'. The return value of method 'System.Reflection.Assembly.GetType(String)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Android.Runtime\AndroidRuntime.cs(526,8): warning IL2070: Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, ReadOnlySpan<Char>): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicMethods', 'DynamicallyAccessedMemberTypes.NonPublicMethods' in call to 'System.Type.GetMethods(BindingFlags)'. The parameter 'type' of method 'Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, ReadOnlySpan<Char>)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Android.Runtime\AndroidRuntime.cs(540,9): warning IL2057: Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, ReadOnlySpan<Char>): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	src\Mono.Android\Android.Runtime\AndroidRuntime.cs(546,8): warning IL2072: Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, ReadOnlySpan<Char>): 'target' argument does not satisfy 'DynamicallyAccessedMemberTypes.All' in call to 'System.Delegate.CreateDelegate(Type, Type, String)'. The return value of method 'System.Type.BaseType.get' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Android.Runtime\AndroidRuntime.cs(546,8): warning IL2067: Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, ReadOnlySpan<Char>): 'target' argument does not satisfy 'DynamicallyAccessedMemberTypes.All' in call to 'System.Delegate.CreateDelegate(Type, Type, String)'. The parameter 'type' of method 'Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, ReadOnlySpan<Char>)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop.Tools.TypeNameMappings\Java.Interop.Tools.TypeNameMappings\JavaNativeTypeManager.cs(182,4): warning IL2070: Java.Interop.Tools.TypeNameMappings.JavaNativeTypeManager.ToJniName(Type, ExportParameterKind): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.Interfaces' in call to 'System.Type.GetInterfaces()'. The parameter 'type' of method 'Java.Interop.Tools.TypeNameMappings.JavaNativeTypeManager.ToJniName(Type, ExportParameterKind)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Java.Interop\JavaObjectExtensions.cs(139,4): warning IL2055: Java.Interop.JavaObjectExtensions.GetInvokerType(Type): Call to 'System.Type.MakeGenericType(Type[])' can not be statically analyzed. It's not possible to guarantee the availability of requirements of the generic type.
	src\Mono.Android\Java.Interop\TypeManager.cs(169,5): warning IL2072: Java.Interop.TypeManager.Activate(IntPtr, ConstructorInfo, Object[]): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicConstructors', 'DynamicallyAccessedMemberTypes.NonPublicConstructors' in call to 'System.Runtime.CompilerServices.RuntimeHelpers.GetUninitializedObject(Type)'. The return value of method 'System.Reflection.MemberInfo.DeclaringType.get' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Java.Interop\TypeManager.cs(326,4): warning IL2070: Java.Interop.TypeManager.CreateProxy(Type, IntPtr, JniHandleOwnership): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicConstructors', 'DynamicallyAccessedMemberTypes.NonPublicConstructors' in call to 'System.Type.GetConstructor(BindingFlags, Binder, Type[], ParameterModifier[])'. The parameter 'type' of method 'Java.Interop.TypeManager.CreateProxy(Type, IntPtr, JniHandleOwnership)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Java.Interop\TypeManager.cs(330,4): warning IL2070: Java.Interop.TypeManager.CreateProxy(Type, IntPtr, JniHandleOwnership): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicConstructors', 'DynamicallyAccessedMemberTypes.NonPublicConstructors' in call to 'System.Type.GetConstructor(BindingFlags, Binder, Type[], ParameterModifier[])'. The parameter 'type' of method 'Java.Interop.TypeManager.CreateProxy(Type, IntPtr, JniHandleOwnership)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	src\Mono.Android\Java.Interop\TypeManager.cs(126,5): warning IL2057: Java.Interop.TypeManager.GetParameterTypes(String): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	src\Mono.Android\Java.Interop\TypeManager.cs(146,4): warning IL2057: Java.Interop.TypeManager.n_Activate(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.

Suppress/fix the ones in `Mono.Android.dll`, using the
`DynamicallyAccessedMemberTypes` values provided in the warnings.

We are left with 15 that can be solved in the xamarin/java.interop repo:

	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniMarshalMemberBuilder.cs(57,4): warning IL2072: Java.Interop.JniRuntime.SetMarshalMemberBuilder(JniRuntime.CreationOptions): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicParameterlessConstructor' in call to 'System.Activator.CreateInstance(Type)'. The return value of method 'System.Reflection.Assembly.GetType(String)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniTypeManager.cs(464,32): warning IL2067: Java.Interop.JniRuntime.JniTypeManager.FindAndCallRegisterMethod(Type, JniNativeMethodRegistrationArguments): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicMethods', 'DynamicallyAccessedMemberTypes.NonPublicMethods' in call to 'System.Reflection.RuntimeReflectionExtensions.GetRuntimeMethods(Type)'. The parameter 'marshalType' of method 'Java.Interop.JniRuntime.JniTypeManager.FindAndCallRegisterMethod(Type, JniNativeMethodRegistrationArguments)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniTypeManager.cs(414,5): warning IL2070: Java.Interop.JniRuntime.JniTypeManager.TryLoadJniMarshalMethods(JniType, Type, String): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.NonPublicNestedTypes' in call to 'System.Type.GetNestedType(String, BindingFlags)'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniTypeManager.TryLoadJniMarshalMethods(JniType, Type, String)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniTypeManager.cs(418,5): warning IL2072: Java.Interop.JniRuntime.JniTypeManager.TryLoadJniMarshalMethods(JniType, Type, String): 'name' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicMethods' in call to 'System.Reflection.RuntimeReflectionExtensions.GetRuntimeMethod(Type, String, Type[])'. The return value of method 'System.Type.GetNestedType(String, BindingFlags)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(338,5): warning IL2070: Java.Interop.JniRuntime.JniValueManager.GetActivationConstructor(Type): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicConstructors', 'DynamicallyAccessedMemberTypes.NonPublicConstructors' in call to 'System.Type.GetConstructors(BindingFlags)'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniValueManager.GetActivationConstructor(Type)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(577,5): warning IL2060: Java.Interop.JniRuntime.JniValueManager.GetObjectArrayMarshaler(Type): Call to 'System.Reflection.MethodInfo.MakeGenericMethod(Type[])' can not be statically analyzed. It's not possible to guarantee the availability of requirements of the generic method.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(523,6): warning IL2072: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicParameterlessConstructor' in call to 'System.Activator.CreateInstance(Type)'. The return value of method 'Java.Interop.JniValueMarshalerAttribute.MarshalerType.get' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(537,5): warning IL2070: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.Interfaces' in call to 'System.Type.GetInterfaces()'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(559,27): warning IL2070: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.Interfaces' in call to 'System.Type.GetInterfaces()'. The parameter 'type' of method 'Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\JniRuntime.JniValueManager.cs(569,6): warning IL2072: Java.Interop.JniRuntime.JniValueManager.GetValueMarshaler(Type): 'type' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicParameterlessConstructor' in call to 'System.Activator.CreateInstance(Type)'. The return value of method 'Java.Interop.JniValueMarshalerAttribute.MarshalerType.get' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.
	external\Java.Interop\src\Java.Interop\Java.Interop\ManagedPeer.cs(93,5): warning IL2057: Java.Interop.ManagedPeer.Construct(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	external\Java.Interop\src\Java.Interop\Java.Interop\ManagedPeer.cs(156,5): warning IL2057: Java.Interop.ManagedPeer.GetParameterTypes(String): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	external\Java.Interop\src\Java.Interop\Java.Interop\ManagedPeer.cs(198,5): warning IL2057: Java.Interop.ManagedPeer.RegisterNativeMembers(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr): Unrecognized value passed to the parameter 'typeName' of method 'System.Type.GetType(String, Boolean)'. It's not possible to guarantee the availability of the target type.
	src\Mono.Android\Android.Runtime\AndroidRuntime.cs(484,4): warning IL2092: Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, String): 'DynamicallyAccessedMemberTypes' in 'DynamicallyAccessedMembersAttribute' on the parameter 'type' of method 'Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType, Type, String)' don't match overridden parameter 'type' of method 'Java.Interop.JniRuntime.JniTypeManager.RegisterNativeMembers(JniType, Type, String)'. All overridden members must have the same 'DynamicallyAccessedMembersAttribute' usage.
	external\Java.Interop\src\Java.Interop.Tools.TypeNameMappings\Java.Interop.Tools.TypeNameMappings\JavaNativeTypeManager.cs(182,4): warning IL2070: Java.Interop.Tools.TypeNameMappings.JavaNativeTypeManager.ToJniName(Type, ExportParameterKind): 'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.Interfaces' in call to 'System.Type.GetInterfaces()'. The parameter 'type' of method 'Java.Interop.Tools.TypeNameMappings.JavaNativeTypeManager.ToJniName(Type, ExportParameterKind)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.

This *may* actually make the trimmer better in the places I decorated
`Type` parameters with `[DynamicallyAccessedMembers]`, but most of
the places are simply suppressing the warning where we have preserved
the types via other means.

Author: jonathanpeppers

src/Mono.Android/Android.Runtime/AndroidRuntime.cs

@@ -391,6 +391,7 @@ protected override IEnumerable<string> GetSimpleReferences (Type type)
 
 		// See ExportAttribute.cs
 		[UnconditionalSuppressMessage ("Trimming", "IL2026", Justification = "Mono.Android.Export.dll is preserved when [Export] is used via [DynamicDependency].")]
+		[UnconditionalSuppressMessage ("Trimming", "IL2075", Justification = "Mono.Android.Export.dll is preserved when [Export] is used via [DynamicDependency].")]
 		static Delegate CreateDynamicCallback (MethodInfo method)
 		{
 			if (dynamic_callback_gen == null) {
@@ -479,10 +480,20 @@ static bool CallRegisterMethodByIndex (JniNativeMethodRegistrationArguments argu
 			}
 		}
 
-		public override void RegisterNativeMembers (JniType nativeClass, Type type, string? methods) =>
+		public override void RegisterNativeMembers (
+				JniType nativeClass,
+				[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods | DynamicallyAccessedMemberTypes.NonPublicMethods)]
+				Type type,
+				string? methods) =>
 			RegisterNativeMembers (nativeClass, type, methods.AsSpan ());
 
-		public void RegisterNativeMembers (JniType nativeClass, Type type, ReadOnlySpan<char> methods)
+		[UnconditionalSuppressMessage ("Trimming", "IL2057", Justification = "Type.GetType() can never statically know the string value parsed from parameter 'methods'.")]
+		[UnconditionalSuppressMessage ("Trimming", "IL2067", Justification = "Delegate.CreateDelegate() can never statically know the string value parsed from parameter 'methods'.")]
+		[UnconditionalSuppressMessage ("Trimming", "IL2072", Justification = "Delegate.CreateDelegate() can never statically know the string value parsed from parameter 'methods'.")]
+		public void RegisterNativeMembers (
+				JniType nativeClass,
+				[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods | DynamicallyAccessedMemberTypes.NonPublicMethods)] Type type,
+				ReadOnlySpan<char> methods)
 		{
 			try {
 				if (methods.IsEmpty) {

src/Mono.Android/Java.Interop/JavaObjectExtensions.cs

@@ -121,6 +121,7 @@ static IJavaObject CastClass (IJavaObject instance, Type resultType)
 		// typeof(Foo) -> FooInvoker
 		// typeof(Foo<>) -> FooInvoker`1
 		[UnconditionalSuppressMessage ("Trimming", "IL2026", Justification = "*Invoker types are preserved by the MarkJavaObjects linker step.")]
+		[UnconditionalSuppressMessage ("Trimming", "IL2055", Justification = "*Invoker types are preserved by the MarkJavaObjects linker step.")]
 		internal static Type? GetInvokerType (Type type)
 		{
 			const string suffix = "Invoker";

src/Mono.Android/Java.Interop/TypeManager.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using System.Linq;
 using System.Runtime.CompilerServices;
@@ -117,6 +118,7 @@ internal static bool ActivationEnabled {
 		}
 #endif	// !JAVA_INTEROP
 
+		[UnconditionalSuppressMessage ("Trimming", "IL2057", Justification = "Type.GetType() can never statically know the string value from parameter 'signature'.")]
 		static Type[] GetParameterTypes (string? signature)
 		{
 			if (String.IsNullOrEmpty (signature))
@@ -128,6 +130,7 @@ static Type[] GetParameterTypes (string? signature)
 			return result;
 		}
 
+		[UnconditionalSuppressMessage ("Trimming", "IL2057", Justification = "Type.GetType() can never statically know the string value from parameter 'typename_ptr'.")]
 		static void n_Activate (IntPtr jnienv, IntPtr jclass, IntPtr typename_ptr, IntPtr signature_ptr, IntPtr jobject, IntPtr parameters_ptr)
 		{
 			var o   = Java.Lang.Object.PeekObject (jobject);
@@ -164,6 +167,7 @@ static void n_Activate (IntPtr jnienv, IntPtr jclass, IntPtr typename_ptr, IntPt
 			Activate (jobject, cinfo, parms);
 		}
 
+		[UnconditionalSuppressMessage ("Trimming", "IL2072", Justification = "RuntimeHelpers.GetUninitializedObject() does not statically know the return value from ConstructorInfo.DeclaringType.")]
 		internal static void Activate (IntPtr jobject, ConstructorInfo cinfo, object? []? parms)
 		{
 			try {
@@ -258,6 +262,8 @@ internal static IJavaPeerable CreateInstance (IntPtr handle, JniHandleOwnership
 			return CreateInstance (handle, transfer, null);
 		}
 
+		[UnconditionalSuppressMessage ("Trimming", "IL2067", Justification = "TypeManager.CreateProxy() does not statically know the value of the 'type' local variable.")]
+		[UnconditionalSuppressMessage ("Trimming", "IL2072", Justification = "TypeManager.CreateProxy() does not statically know the value of the 'type' local variable.")]
 		internal static IJavaPeerable CreateInstance (IntPtr handle, JniHandleOwnership transfer, Type? targetType)
 		{
 			Type? type = null;
@@ -319,7 +325,11 @@ internal static IJavaPeerable CreateInstance (IntPtr handle, JniHandleOwnership
 		static  readonly    Type[]  XAConstructorSignature  = new Type [] { typeof (IntPtr), typeof (JniHandleOwnership) };
 		static  readonly    Type[]  JIConstructorSignature  = new Type [] { typeof (JniObjectReference).MakeByRefType (), typeof (JniObjectReferenceOptions) };
 
-		internal static object CreateProxy (Type type, IntPtr handle, JniHandleOwnership transfer)
+		internal static object CreateProxy (
+				[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicConstructors | DynamicallyAccessedMemberTypes.NonPublicConstructors)]
+				Type type,
+				IntPtr handle,
+				JniHandleOwnership transfer)
 		{
 			// Skip Activator.CreateInstance() as that requires public constructors,
 			// and we want to hide some constructors for sanity reasons.