java.lang.NoClassDefFoundError: java.nio.charset.StandardCharsets in Android API < 19

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Description

    java.lang.NoClassDefFoundError: java.nio.charset.StandardCharsets
        at com.google.api.client.util.StringUtils.getBytesUtf8(StringUtils.java:52)
        at com.google.api.client.json.webtoken.JsonWebSignature.signUsingRsaSha256(JsonWebSignature.java:636)
        at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.executeRefreshToken(GoogleCredential.java:388)
        at com.google.api.client.auth.oauth2.Credential.refreshToken(Credential.java:494)
        at com.google.api.client.auth.oauth2.Credential.intercept(Credential.java:217)
        at com.google.api.client.googleapis.batch.BatchRequest$BatchInterceptor.intercept(BatchRequest.java:281)
        at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:911)
        at com.google.api.client.googleapis.batch.BatchRequest.execute(BatchRequest.java:233)
        at our.app.PubSubManager.sendTopic(PubSubManager.java:100)
        at java.lang.Thread.run(Thread.java:841)

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