[Bug]: CtComment getpath() throws a NullPointerException

[honghao12]

Describe the bug

CtComment getpath() throws a NullPointerException, Observe that the error is caused by an unknown class(Test02) in the static code block

Source code you are trying to analyze/transform

package org.example.module01;

import org.example.module02.Test02;

import java.util.HashMap;
import java.util.Map;


/**
 * NumberCopier
 *
 * @since 2021-02-24
 */
public class NumberCopier {
    private static Map<Class<?>, ConvertHandler> invokeMap = new HashMap<>(1);

    static {
        invokeMap.put(Test02.class, Test02::new);
    }

    /**
     * ConvertHandler
     *
     * @since 2021-02-24
     */
    @FunctionalInterface
    private interface ConvertHandler {
        /**
         * doConvert
         *
         * @param dv dv
         * @return Object
         */
        Object doConvert(Double dv);
    }
}

Source code for your Spoon processing

Launcher launcher = new Launcher();
  launcher.getEnvironment().setComplianceLevel(11);
  launcher.getEnvironment().setAutoImports(true);
  launcher.getEnvironment().setIgnoreDuplicateDeclarations(true);
  launcher.addInputResource("the file path");
 CtModel model = launcher.buildModel();
  List<CtComment> elements = model.getElements(new TypeFilter<>(CtComment.class));
  for (CtComment element : elements) {
      element.getPath(); // throws NullPointerException 
  }

Actual output

java.util.concurrent.CompletionException: java.lang.NullPointerException

	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314)
	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1739)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1728)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)
Caused by: java.lang.NullPointerException
	at spoon.support.visitor.SignaturePrinter.writeNameAndParameters(SignaturePrinter.java:51)
	at spoon.support.visitor.SignaturePrinter.visitCtExecutableReference(SignaturePrinter.java:45)
	at spoon.support.reflect.reference.CtExecutableReferenceImpl.accept(CtExecutableReferenceImpl.java:77)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:194)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:184)
	at spoon.reflect.visitor.CtScanner.visitCtExecutableReferenceExpression(CtScanner.java:659)
	at spoon.support.reflect.code.CtExecutableReferenceExpressionImpl.accept(CtExecutableReferenceExpressionImpl.java:24)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:194)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:184)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:149)
	at spoon.reflect.visitor.CtScanner.visitCtInvocation(CtScanner.java:528)
	at spoon.support.reflect.code.CtInvocationImpl.accept(CtInvocationImpl.java:46)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:194)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:184)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:149)
	at spoon.reflect.visitor.CtScanner.visitCtBlock(CtScanner.java:321)
	at spoon.support.reflect.code.CtBlockImpl.accept(CtBlockImpl.java:58)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:194)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:184)
	at spoon.reflect.visitor.CtScanner.visitCtAnonymousExecutable(CtScanner.java:248)
	at spoon.support.reflect.declaration.CtAnonymousExecutableImpl.accept(CtAnonymousExecutableImpl.java:37)
	at spoon.reflect.visitor.CtScanner.scan(CtScanner.java:194)
	at spoon.support.reflect.declaration.CtExecutableImpl.getSignature(CtExecutableImpl.java:182)
	at spoon.reflect.path.CtElementPathBuilder.getSignature(CtElementPathBuilder.java:177)
	at spoon.reflect.path.CtElementPathBuilder.getArg(CtElementPathBuilder.java:166)
	at spoon.reflect.path.CtElementPathBuilder.fromElement(CtElementPathBuilder.java:93)
	at spoon.reflect.path.CtElementPathBuilder.fromElement(CtElementPathBuilder.java:44)
	at spoon.support.reflect.declaration.CtElementImpl.getPath(CtElementImpl.java:576)

Expected output

No response

Spoon Version

10.4.3-beta-2

JVM Version

11

What operating system are you using?

windows