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  1. ,

    Java does not handle IPv6 nameservers before 1.8.0_60. Upgrade to the latest JVM.

  2. ,

    Is thrown when you try to convert a String to a numeric value, like an int, float, double, long, etc.

Solutions on the web

via blogspot.com by Unknown author, 1 year ago
via GitHub by sho-suzuki
, 9 months ago
For input string: "host.example.com"
via Coderanch by Faisal Fuad, 1 year ago
For input string: "3.14"
java.lang.NumberFormatException: For input string: "2.38494" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.valueOf(Unknown Source)