java.lang.NumberFormatException: For input string: "DEV"

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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.


Can occur when you try to convert a String to a numeric value but the String is not well formatted for the conversion.

Solutions on the web

via Atlassian JIRA by Oleg Efimov, 1 year ago
For input string: "DEV"
via Atlassian JIRA by Oleg Efimov, 1 year ago
For input string: "DEV"
via GitHub by teleological
, 1 year ago
For input string: "3153600000"
via Stack Overflow by Fahim G
, 2 years ago
via GitHub by spoenemann
, 5 months ago
For input string: " 1"
via GitHub by katyakats
, 10 months ago
For input string: "100MB"
java.lang.NumberFormatException: For input string: "DEV"
at java.lang.NumberFormatException.forInputString(
at java.lang.Integer.parseInt(
at java.lang.Integer.parseInt(
at org.apache.commons.configuration.tree.DefaultConfigurationKey$KeyIterator.checkIndex(
at org.apache.commons.configuration.tree.DefaultConfigurationKey$KeyIterator.nextKey(
at org.apache.commons.configuration.tree.DefaultExpressionEngine.findNodesForKey(
at org.apache.commons.configuration.tree.DefaultExpressionEngine.query(
at org.apache.commons.configuration.HierarchicalConfiguration.fetchNodeList(
at org.apache.commons.configuration.AbstractHierarchicalFileConfiguration.fetchNodeList(
at org.apache.commons.configuration.HierarchicalConfiguration.clearProperty(

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