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Lazily initialize TokenValidationParameters.InstancePropertyBag #2160

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Jul 26, 2023
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Lazily initialize TokenValidationParameters.InstancePropertyBag #2160

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3 changes: 2 additions & 1 deletion src/Microsoft.IdentityModel.Tokens/TokenValidationParameters.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -189,6 +189,7 @@ public class TokenValidationParameters
private TimeSpan _clockSkew = DefaultClockSkew;
private string _nameClaimType = ClaimsIdentity.DefaultNameClaimType;
private string _roleClaimType = ClaimsIdentity.DefaultRoleClaimType;
private Dictionary<string, object> _instancePropertyBag;

/// <summary>
/// This is the default value of <see cref="ClaimsIdentity.AuthenticationType"/> when creating a <see cref="ClaimsIdentity"/>.
Expand Down Expand Up @@ -483,7 +484,7 @@ public virtual ClaimsIdentity CreateClaimsIdentity(SecurityToken securityToken,
/// Gets a <see cref="IDictionary{String, Object}"/> that is unique to this instance.
/// Calling <see cref="Clone"/> will result in a new instance of this IDictionary.
/// </summary>
public IDictionary<string, object> InstancePropertyBag { get; } = new Dictionary<string, object>();
public IDictionary<string, object> InstancePropertyBag => _instancePropertyBag ??= new Dictionary<string, object>();

/// <summary>
/// Gets a value indicating if <see cref="Clone"/> was called to obtain this instance.
Expand Down