Could not load 'SuperclassNotExisting': SuperclassNotExisting.How to set classpath

[yuanxiaomama]

options = Options.newDefault(); options.setIgnoreMissingClasses(false); options.setAccessModifier(AccessModifier.PRIVATE); options.setOldArchives(oldArchiveList); options.setNewArchives(newArchiveList); options.setOldClassPath(oldClassPath); options.setNewClassPath(newClassPath);

in project, there is no error message, but there is error in command

E: Could not load 'Class not found: org.springframework.beans.factory.FactoryBean': org.springframework.beans.factory.FactoryBean. Please make sure that all libraries have been added to the classpath (OLD CLASSPATH=:core-2.8.0.jar: / NEW CLASSPATH=:core-2.8.1.jar:) or try the option '--ignore-missing-classes'.

[yuanxiaomama]

`JarArchiveComparatorOptions comparatorOptions = JarArchiveComparatorOptions.of(options); JarArchiveComparator jarArchiveComparator = new JarArchiveComparator(comparatorOptions);

    jApiClasses = jarArchiveComparator.compare(oldArchive, newArchive);
    try {
        generateHtmlOutputOnlyModifications();
    } catch (IOException e) {
        e.printStackTrace();
    }`

japicmp.exception.JApiCmpException: Could not load 'SuperclassNotExisting': SuperclassNotExisting. Please make sure that all libraries have been added to the classpath (CLASSPATH=) or try the option '--ignore-missing-classes'. at japicmp.exception.JApiCmpException.forClassLoading(JApiCmpException.java:50) ~[japicmp-0.14.1.jar:?] at japicmp.model.JApiClass.getSuperclass(JApiClass.java:269) ~[japicmp-0.14.1.jar:?] at japicmp.model.JApiClass.extractSuperclass(JApiClass.java:227) ~[japicmp-0.14.1.jar

Is the usage wrong?