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Fix BillingResult ObjectDisposedException in Billing 8.0.0.1 #1232

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Fix BillingResult ObjectDisposedException in Billing 8.0.0.1 #1232

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09116d8
Initial plan
Copilot Jul 25, 2025
59dfc94
Initial analysis of Billing 8.0.0.1 ObjectDisposedException issue
Copilot Jul 25, 2025
b077f2d
Fix BillingResult ObjectDisposedException by creating persistent copies
Copilot Jul 25, 2025
e3ae4b3
Fix BillingResult ObjectDisposedException using GC.KeepAlive approach
Copilot Jul 25, 2025
1d9adb5
Revert "Fix BillingResult ObjectDisposedException using GC.KeepAlive …
jonathanpeppers Jul 28, 2025
8deb034
Revert "Fix BillingResult ObjectDisposedException by creating persist…
jonathanpeppers Jul 28, 2025
bfb29db
Revert back to what we had
jonathanpeppers Jul 28, 2025
d8d6034
Still not quite working, but pushing my change
jonathanpeppers Aug 4, 2025
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30 changes: 20 additions & 10 deletions source/com.android.billingclient/billing/Additions/Additions.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ public void SetListener(Action<BillingResult, IList<Purchase>> handler)
}
}

public Task<BillingResult> AcknowledgePurchaseAsync(AcknowledgePurchaseParams acknowledgePurchaseParams)
public async Task<BillingResult> AcknowledgePurchaseAsync(AcknowledgePurchaseParams acknowledgePurchaseParams)
{
var tcs = new TaskCompletionSource<BillingResult>();

Expand All @@ -76,10 +76,12 @@ public Task<BillingResult> AcknowledgePurchaseAsync(AcknowledgePurchaseParams ac

AcknowledgePurchase(acknowledgePurchaseParams, listener);

return tcs.Task;
var result = await tcs.Task;
GC.KeepAlive(listener);
return result;
}

public Task<ConsumeResult> ConsumeAsync(ConsumeParams consumeParams)
public async Task<ConsumeResult> ConsumeAsync(ConsumeParams consumeParams)
{
var tcs = new TaskCompletionSource<ConsumeResult>();

Expand All @@ -94,7 +96,9 @@ public Task<ConsumeResult> ConsumeAsync(ConsumeParams consumeParams)

Consume(consumeParams, listener);

return tcs.Task;
var result = await tcs.Task;
GC.KeepAlive(listener);
return result;
}

const string QueryPurchaseHistoryNotSupported = "QueryPurchaseHistory method was removed in Billing Client v8.0.0. Use QueryPurchasesAsync instead. See: https://developer.android.com/google/play/billing/migrate";
Expand Down Expand Up @@ -125,7 +129,7 @@ public Task<QuerySkuDetailsResult> QuerySkuDetailsAsync(SkuDetailsParams skuDeta
throw new NotSupportedException(QuerySkuDetailsNotSupported);
}

public Task<QueryProductDetailsResult> QueryProductDetailsAsync(QueryProductDetailsParams productDetailsParams)
public async Task<QueryProductDetailsResult> QueryProductDetailsAsync(QueryProductDetailsParams productDetailsParams)
{
var tcs = new TaskCompletionSource<QueryProductDetailsResult>();

Expand All @@ -136,10 +140,12 @@ public Task<QueryProductDetailsResult> QueryProductDetailsAsync(QueryProductDeta

QueryProductDetails(productDetailsParams, listener);

return tcs.Task;
var result = await tcs.Task;
GC.KeepAlive(listener);
return result;
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@tipa I think this is plausible that it could fix the ObjectDisposedException, but it seems like the old version would have had a similar issue.

The version number is unchanged, because we didn't ship it yet:

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@jonathanpeppers the problem persists - I will send you an example project for you to reproruce the crash

}

public Task<QueryPurchasesResult> QueryPurchasesAsync(QueryPurchasesParams purchasesParams)
public async Task<QueryPurchasesResult> QueryPurchasesAsync(QueryPurchasesParams purchasesParams)
{
var tcs = new TaskCompletionSource<QueryPurchasesResult>();

Expand All @@ -154,10 +160,12 @@ public Task<QueryPurchasesResult> QueryPurchasesAsync(QueryPurchasesParams purch

QueryPurchases(purchasesParams, listener);

return tcs.Task;
var result = await tcs.Task;
GC.KeepAlive(listener);
return result;
}

public Task<BillingResult> StartConnectionAsync(Action onDisconnected = null)
public async Task<BillingResult> StartConnectionAsync(Action onDisconnected = null)
{
var tcs = new TaskCompletionSource<BillingResult>();

Expand All @@ -174,7 +182,9 @@ public Task<BillingResult> StartConnectionAsync(Action onDisconnected = null)

StartConnection(listener);

return tcs.Task;
var result = await tcs.Task;
GC.KeepAlive(listener);
return result;
}

public void StartConnection(Action<BillingResult> setupFinished, Action onDisconnected)
Expand Down
5 changes: 5 additions & 0 deletions source/com.android.billingclient/billing/PublicAPI/PublicAPI.Unshipped.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -315,7 +315,12 @@ Android.BillingClient.Api.QueryProductDetailsParams.Product.Zza() -> string!
Android.BillingClient.Api.QueryProductDetailsParams.Product.Zzb() -> string!
Android.BillingClient.Api.QueryProductDetailsParams.Zzb() -> string!
Android.BillingClient.Api.QueryProductDetailsResult
Android.BillingClient.Api.QueryProductDetailsResult.ProductDetails.get -> System.Collections.Generic.IList<Android.BillingClient.Api.ProductDetails!>!
Android.BillingClient.Api.QueryProductDetailsResult.ProductDetails.set -> void
Android.BillingClient.Api.QueryProductDetailsResult.ProductDetailsList.get -> System.Collections.Generic.IList<Android.BillingClient.Api.ProductDetails!>!
Android.BillingClient.Api.QueryProductDetailsResult.QueryProductDetailsResult() -> void
Android.BillingClient.Api.QueryProductDetailsResult.Result.get -> Android.BillingClient.Api.BillingResult!
Android.BillingClient.Api.QueryProductDetailsResult.Result.set -> void
Android.BillingClient.Api.QueryProductDetailsResult.UnfetchedProductList.get -> System.Collections.Generic.IList<Android.BillingClient.Api.UnfetchedProduct!>!
Android.BillingClient.Api.QueryPurchaseHistoryParams
Android.BillingClient.Api.QueryPurchaseHistoryParams.Builder
Expand Down