java.lang.NumberFormatException: empty String

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Root Cause Analysis

  1. java.lang.NumberFormatException

    empty String

    at java.lang.FloatingDecimal.readJavaFormatString()
  2. Java RT
    Float.valueOf
    1. java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:986)
    2. java.lang.Float.valueOf(Float.java:186)
    2 frames
  3. numericField
    NumericField.getSelectedfloat
    1. numericField.NumericField.getSelectedfloat(NumericField.java:64)
    1 frame
  4. Unknown
    NumericFieldDriver$ActionHandler.actionPerformed
    1. NumericFieldDriver$ActionHandler.actionPerformed(NumericFieldDriver.java:72)
    1 frame
  5. Java RT
    EventDispatchThread.run
    1. java.awt.Button.processActionEvent(Button.java:381)
    2. java.awt.Button.processEvent(Button.java:350)
    3. java.awt.Component.dispatchEventImpl(Component.java:3526)
    4. java.awt.Component.dispatchEvent(Component.java:3367)
    5. java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
    6. java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)
    7. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)
    8. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
    9. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
    10. java.awt.EventDispatchThread.run(EventDispatchThread.java:98)
    10 frames