java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: java/lang/invoke/StringConcatFactory

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via Stack Overflow by Christopher K.
, 1 year ago
java.lang.NoClassDefFoundError: java/lang/invoke/StringConcatFactory
java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: java/lang/invoke/StringConcatFactory
at calc.CalculatorGUI.operatorButtonActionPerformed(CalculatorGUI.java:323)

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