java.lang.NumberFormatException: For inpu t string: ""

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You try to parse a String that contains non-numeric characters to an int. The string must contain decimal characters only, optionally beginning with a + or - sign.

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

Solutions on the web

via Stack Overflow by Jaskal
, 1 year ago
For input string: "t"
via Eclipse Bugzilla by Darin_Swanson, 1 year ago
For input string: "osgi.bundles.defaultStartLevel"
via Google Groups by Longzhi Tan, 9 months ago
via Google Groups by adam, 2 years ago
For input string: "hello"
via Google Groups by moop™, 2 years ago
java.lang.NumberFormatException: For inpu t string: ""
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at undefined.Risk.keyPressed(Risk.java:44)

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