zymap opened a new pull request #470:
URL: https://github.com/apache/pulsar-client-go/pull/470
**Motivation**
When compiling the code across different platform, sometimes
will encounter the nil pointer when getting the label from the
`authIterm`.
error logs:
```
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x13105e1]
goroutine 1 [running]:
github.com/apache/pulsar-client-go/oauth2/store.(*KeyringStore).WhoAmI(0xc0001ae660,
0x7ffeefbff459, 0x1b, 0x0, 0x0, 0x0, 0x0)
/Users/zhangyong/github.com/apache/pulsar-client-go/oauth2/store/keyring.go:127
+0x221
github.com/streamnative/pulsarctl/pkg/oauth2.doActivate(0xc0003446e0,
0x7ffeefbff3ae, 0x3a, 0x7ffeefbff459, 0x1b, 0x7ffeefbff421, 0x2c, 0xc000357cf8,
0x157a745)
/Users/zhangyong/github.com/streamnative/pulsarctl/pkg/oauth2/active.go:93
+0x21a
github.com/streamnative/pulsarctl/pkg/oauth2.activateCmd.func1(0x1492580,
0xc000357d08)
/Users/zhangyong/github.com/streamnative/pulsarctl/pkg/oauth2/active.go:52 +0x69
github.com/streamnative/pulsarctl/pkg/cmdutils.run(0xc000329d10)
/Users/zhangyong/github.com/streamnative/pulsarctl/pkg/cmdutils/verb.go:100
+0x27
github.com/streamnative/pulsarctl/pkg/cmdutils.(*VerbCmd).SetRunFunc.func1(0xc000361180,
0xc0002bcd80, 0x0, 0x8)
/Users/zhangyong/github.com/streamnative/pulsarctl/pkg/cmdutils/verb.go:67 +0x2a
github.com/spf13/cobra.(*Command).execute(0xc000361180, 0xc0002bcc00, 0x8,
0x8, 0xc000361180, 0xc0002bcc00)
/Users/zhangyong/go/pkg/mod/github.com/spf13/[email protected]/command.go:830 +0x2c2
github.com/spf13/cobra.(*Command).ExecuteC(0xc00016c280, 0xc000339260,
0xc00001e0c0, 0xa)
/Users/zhangyong/go/pkg/mod/github.com/spf13/[email protected]/command.go:914 +0x30b
github.com/spf13/cobra.(*Command).Execute(...)
/Users/zhangyong/go/pkg/mod/github.com/spf13/[email protected]/command.go:864
main.main()
/Users/zhangyong/github.com/streamnative/pulsarctl/main.go:41 +0x1c5
```
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