#vulnerable code 
                              public ConnectionContext getConnectionContext() {
    return new ConnectionContext(
        this.getLogger(),
        wrapAuthTokenProvider(this.getAuthTokenProvider()),
        this.getExecutorService(),
        this.isPersistenceEnabled(),
        FirebaseDatabase.getSdkVersion(),
        this.getUserAgent());
  } 
                            #location 3 
                            #vulnerability type THREAD_SAFETY_VIOLATION
#fixed code
                              public ConnectionContext getConnectionContext() {
    return new ConnectionContext(
        this.logger,
        wrapAuthTokenProvider(this.getAuthTokenProvider()),
        this.getExecutorService(),
        this.isPersistenceEnabled(),
        FirebaseDatabase.getSdkVersion(),
        this.getUserAgent());
  }