Exception of HtmlCleaner raised

[EskenderTamrat]

Although HtmlCleaner library is in pom.xml, this error throws when I try to run opengraph-java with OpenGraph testPage = new OpenGraph("https://ogp.me/", true); Any suggstions?

Exception in thread "main" java.lang.NoClassDefFoundError: org/htmlcleaner/HtmlCleaner
	at org.opengraph.OpenGraph.<init>(OpenGraph.java:91)
	at org.opengraph.OpenGraph.main(OpenGraph.java:413)
Caused by: java.lang.ClassNotFoundException: org.htmlcleaner.HtmlCleaner
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)