SSLHandshakeException: NullPointerException on String.toUpperCase(java.util.Locale)

Started getting reports of this crash from a Moto G(6) running Android 10.

```
Caused by javax.net.ssl.SSLHandshakeException: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toUpperCase(java.util.Locale)' on a null object reference
at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:231)
at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:379)
at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:337)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:209)
at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:226)
at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:106)
at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:74)
at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.java:255)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:32)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:95)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:83)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:76)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:222)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at co.myapp.api.CustomPropertyInterceptor.intercept(CustomPropertyInterceptor.java:49)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at co.myapp.api.AuthInterceptor.intercept(AuthInterceptor.java:78)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.java:201)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.java:517)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:919)
Caused by java.security.cert.CertificateException: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toUpperCase(java.util.Locale)' on a null object reference
at com.android.org.conscrypt.ConscryptFileDescriptorSocket.verifyCertificateChain(ConscryptFileDescriptorSocket.java:415)
at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(NativeCrypto.java)
at com.android.org.conscrypt.NativeSsl.doHandshake(NativeSsl.java:387)
at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:226)
at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:379)
at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:337)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:209)
at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:226)
at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:106)
at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:74)
at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.java:255)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:32)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:95)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:83)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:76)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:222)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at co.myapp.api.CustomPropertyInterceptor.intercept(CustomPropertyInterceptor.java:49)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at co.myapp.api.AuthInterceptor.intercept(AuthInterceptor.java:78)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.java:201)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.java:517)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:919)
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toUpperCase(java.util.Locale)' on a null object reference
at java.security.Provider$ServiceKey.(Provider.java:904)
at java.security.Provider$ServiceKey.(Provider.java:897)
at java.security.Provider.getService(Provider.java:1071)
at sun.security.jca.ProviderList.getService(ProviderList.java:332)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:157)
at java.security.Security.getImpl(Security.java:628)
at java.security.MessageDigest.getInstance(MessageDigest.java:197)
at android.security.net.config.NetworkSecurityTrustManager.checkPins(NetworkSecurityTrustManager.java:135)
at android.security.net.config.NetworkSecurityTrustManager.checkServerTrusted(NetworkSecurityTrustManager.java:95)
at android.security.net.config.RootTrustManager.checkServerTrusted(RootTrustManager.java:89)
at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:224)
at com.android.org.conscrypt.ConscryptFileDescriptorSocket.verifyCertificateChain(ConscryptFileDescriptorSocket.java:407)
at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(NativeCrypto.java)
at com.android.org.conscrypt.NativeSsl.doHandshake(NativeSsl.java:387)
at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:226)
at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:379)
at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:337)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:209)
at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:226)
at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:106)
at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:74)
at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.java:255)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:32)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:95)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:83)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:76)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:222)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at co.myapp.api.CustomPropertyInterceptor.intercept(CustomPropertyInterceptor.java:49)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at co.myapp.api.AuthInterceptor.intercept(AuthInterceptor.java:78)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:109)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.java:201)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.java:517)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:919)
```