importorg.junit.jupiter.api.Test;importcom.github.javaparser.JavaParser;importcom.github.javaparser.ast.expr.InstanceOfExpr;importcom.github.javaparser.printer.lexicalpreservation.LexicalPreservingPrinter;publicclassJavaParserBugsTest {@TestvoidtestUnsupportedOperationExceptionRemovingPattern() {varparser =newJavaParser();varcu =parser.parse("""                        public class PatternMatching_UnsupportedOperationException {                            public void processObject(Object obj) {                                if (obj instanceof String s) {                                    System.out.println(s);                                }                            }                        }                        """).getResult().orElseThrow();LexicalPreservingPrinter.setup(cu);cu.findAll(InstanceOfExpr.class).forEach(InstanceOfExpr::removePattern);    }}

NodeText: NodeText{[ChildTextElement{obj}, " "   <1>   (line 3,col 16)-(line 3,col 16), "instanceof"   <37>   (line 3,col 17)-(line 3,col 26), " "   <1>   (line 3,col 27)-(line 3,col 27), ChildTextElement{String}, ChildTextElement{String s}]}. Difference: Difference{[Kept{child(NameExpr)}, Kept{CsmToken(property: )}, Kept{CsmToken(property:instanceof)}, Kept{CsmToken(property: )}, Kept{child(ClassOrInterfaceType)}]} ChildTextElement{String s}java.lang.UnsupportedOperationException: NodeText: NodeText{[ChildTextElement{obj}, " "   <1>   (line 3,col 16)-(line 3,col 16), "instanceof"   <37>   (line 3,col 17)-(line 3,col 26), " "   <1>   (line 3,col 27)-(line 3,col 27), ChildTextElement{String}, ChildTextElement{String s}]}. Difference: Difference{[Kept{child(NameExpr)}, Kept{CsmToken(property: )}, Kept{CsmToken(property:instanceof)}, Kept{CsmToken(property: )}, Kept{child(ClassOrInterfaceType)}]} ChildTextElement{String s}at com.github.javaparser.printer.lexicalpreservation.Difference.applyLeftOverOriginalElements(Difference.java:416)at com.github.javaparser.printer.lexicalpreservation.Difference.apply(Difference.java:379)at com.github.javaparser.printer.lexicalpreservation.LexicalDifferenceCalculator.calculatePropertyChange(LexicalDifferenceCalculator.java:181)at com.github.javaparser.printer.lexicalpreservation.LexicalPreservingPrinter$Observer.concretePropertyChange(LexicalPreservingPrinter.java:204)at com.github.javaparser.ast.observer.PropagatingAstObserver.propertyChange(PropagatingAstObserver.java:64)at com.github.javaparser.ast.Node.lambda$notifyPropertyChange$7(Node.java:675)at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)at com.github.javaparser.ast.Node.notifyPropertyChange(Node.java:675)at com.github.javaparser.ast.expr.InstanceOfExpr.setPattern(InstanceOfExpr.java:269)at com.github.javaparser.ast.expr.InstanceOfExpr.removePattern(InstanceOfExpr.java:225)