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get "networkaddress.cache.ttl" and "networkaddress.cache.negative.ttl" for your environment. see java.net.InetAddress javadoc.
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| import sun.net.InetAddressCachePolicy; | |
| // see: https://docs.oracle.com/javase/jp/8/api/java/net/InetAddress.html | |
| // see: https://github.com/openjdk-mirror/jdk7u-jdk/blob/master/src/share/classes/sun/net/InetAddressCachePolicy.java | |
| // for (Open/Oralce) JRE 7-8 | |
| // "networkaddress.cache.ttl" | |
| println InetAddressCachePolicy.cachePolicy | |
| // "networkaddress.cache.negative.ttl" | |
| println InetAddressCachePolicy.negativeCachePolicy | |
| println InetAddressCachePolicy.propertySet | |
| println InetAddressCachePolicy.propertyNegativeSet |
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