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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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via Coderanch by Mohamed Sanaulla, 1 year ago
For input string: "-0.07114248241288923"
java.lang.NumberFormatException: For input string: "^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:481) at java.lang.Integer.parseInt(Integer.java:527) at scala.collection.immutable.StringLike$class.toInt(StringLike.scala:229) at scala.collection.immutable.StringOps.toInt(StringOps.scala:31) at kafka.server.OffsetCheckpoint.read(OffsetCheckpoint.scala:76) at kafka.log.LogManager$$anonfun$loadLogs$1.apply(LogManager.scala:106) at kafka.log.LogManager$$anonfun$loadLogs$1.apply(LogManager.scala:105) at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33) at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34) at kafka.log.LogManager.loadLogs(LogManager.scala:105) at kafka.log.LogManager.<init>(LogManager.scala:57) at kafka.server.KafkaServer.createLogManager(KafkaServer.scala:275) at kafka.server.KafkaServer.startup(KafkaServer.scala:72)