PoolEntry.java 文件源码

public synchronized void updateExpiry(final long time, final TimeUnit tunit) {
    Args.notNull(tunit, "Time unit");
    this.updated = System.currentTimeMillis();
    final long newExpiry;
    if (time > 0) {
        newExpiry = this.updated + tunit.toMillis(time);
    } else {
        newExpiry = Long.MAX_VALUE;
    }
    this.expiry = Math.min(newExpiry, this.validUnit);
}