aws_ec2_availability_zone_group create crashes provider v4.10.0

[ewbankkit]

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resource "aws_ec2_availability_zone_group" "example" {
  group_name    = "test"
  opt_in_status = "opted-in"
}

Stack trace from the terraform-provider-aws_v4.10.0_x5 plugin:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x5abad96]

goroutine 131 [running]:
github.com/hashicorp/terraform-provider-aws/internal/service/ec2.resourceAvailabilityZoneGroupRead(0xc002129d80, {0x7997760, 0xc00073e000})
	github.com/hashicorp/terraform-provider-aws/internal/service/ec2/availability_zone_group.go:88 +0x216
github.com/hashicorp/terraform-provider-aws/internal/service/ec2.resourceAvailabilityZoneGroupCreate(0xc002129d80, {0x7997760, 0xc00073e000})
	github.com/hashicorp/terraform-provider-aws/internal/service/ec2/availability_zone_group.go:55 +0xff
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).create(0x9cfc600, {0x9cfc600, 0xc002137710}, 0xd, {0x7997760, 0xc00073e000})
	github.com/hashicorp/terraform-plugin-sdk/v2@v2.13.0/helper/schema/resource.go:696 +0x178
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).Apply(0xc000eb4fc0, {0x9cfc600, 0xc002137710}, 0xc00213e340, 0xc002129c00, {0x7997760, 0xc00073e000})
	github.com/hashicorp/terraform-plugin-sdk/v2@v2.13.0/helper/schema/resource.go:838 +0x9ba
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*GRPCProviderServer).ApplyResourceChange(0xc00000ca80, {0x9cfc558, 0xc00212acc0}, 0xc002132a50)
	github.com/hashicorp/terraform-plugin-sdk/v2@v2.13.0/helper/schema/grpc_provider.go:1021 +0xe3c
github.com/hashicorp/terraform-plugin-go/tfprotov5/tf5server.(*server).ApplyResourceChange(0xc001f51040, {0x9cfc600, 0xc002136e70}, 0xc00078abd0)
	github.com/hashicorp/terraform-plugin-go@v0.8.0/tfprotov5/tf5server/server.go:812 +0x56b
github.com/hashicorp/terraform-plugin-go/tfprotov5/internal/tfplugin5._Provider_ApplyResourceChange_Handler({0x8a8f8c0, 0xc001f51040}, {0x9cfc600, 0xc002136e70}, 0xc002130660, 0x0)
	github.com/hashicorp/terraform-plugin-go@v0.8.0/tfprotov5/internal/tfplugin5/tfplugin5_grpc.pb.go:385 +0x170
google.golang.org/grpc.(*Server).processUnaryRPC(0xc000220fc0, {0x9df9c80, 0xc0018e1860}, 0xc002138360, 0xc001f57230, 0xf54c4a0, 0x0)
	google.golang.org/grpc@v1.45.0/server.go:1282 +0xccf
google.golang.org/grpc.(*Server).handleStream(0xc000220fc0, {0x9df9c80, 0xc0018e1860}, 0xc002138360, 0x0)
	google.golang.org/grpc@v1.45.0/server.go:1619 +0xa2a
google.golang.org/grpc.(*Server).serveStreams.func1.2()
	google.golang.org/grpc@v1.45.0/server.go:921 +0x98
created by google.golang.org/grpc.(*Server).serveStreams.func1
	google.golang.org/grpc@v1.45.0/server.go:919 +0x294

Error: The terraform-provider-aws_v4.10.0_x5 plugin crashed!

This is always indicative of a bug within the plugin. It would be immensely
helpful if you could report the crash with the plugin's maintainers so that it
can be fixed. The output above should help diagnose the issue.

╷
│ Error: Plugin did not respond
│ 
│   with module.terraform-aws-availability-zone-group.aws_ec2_availability_zone_group.availability_zone_group,
│   on .terraform/modules/terraform-aws-availability-zone-group/main.tf line 1, in resource "aws_ec2_availability_zone_group" "availability_zone_group":
│    1: resource "aws_ec2_availability_zone_group" "availability_zone_group" {
│ 
│ The plugin encountered an error, and failed to respond to the
│ plugin.(*GRPCProvider).ApplyResourceChange call. The plugin logs may
│ contain more details.
╵
2022-04-18T15:12:21.076Z [DEBUG] provider: plugin exited

terraform-provider-aws/internal/service/ec2/availability_zone_group.go

Lines 79 to 90 in bbb5246

	func resourceAvailabilityZoneGroupRead(d *schema.ResourceData, meta interface{}) error {
	conn := meta.(*conns.AWSClient).EC2Conn
	availabilityZone, err := ec2DescribeAvailabilityZoneGroup(conn, d.Id())
	if err != nil {
	return fmt.Errorf("error describing EC2 Availability Zone Group (%s): %w", d.Id(), err)
	}
	if aws.StringValue(availabilityZone.OptInStatus) == ec2.AvailabilityZoneOptInStatusOptInNotRequired {
	return fmt.Errorf("unnecessary handling of EC2 Availability Zone Group (%s), status: %s", d.Id(), ec2.AvailabilityZoneOptInStatusOptInNotRequired)
	}

[github-actions]

This functionality has been released in v4.12.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.