private void basicPutGrantToken(DLockGrantToken grantToken) {
    grantTokens.put(grantToken.getName(), grantToken);
    dlock.getStats().incGrantTokens(1);
  }
Stores the grant token as a value in the map under the key of its name.
<p>
Caller must synchronize on grantTokens

@param grantToken the grant token to store in the map guarded.By {@link #grantTokens}
geode-core/src/main/java/org/apache/geode/distributed/internal/locks/DLockGrantor.java