java.lang.ClassCastException: oracle.classloader.SharedCodeSourceURL$Connection incompatible with java.net.JarURLConnection

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oracle.classloader.SharedCodeSourceURL$Connection incompatible with java.net.JarURLConnection
java.lang.ClassCastException: oracle.classloader.SharedCodeSourceURL$Connection incompatible with java.net.JarURLConnection
at com.java4less.charsets.CharSetManager.loadMaps2(CharSetManager.java:133)
at com.java4less.charsets.CharSetManager.(CharSetManager.java:61)
at com.java4less.charsets.CharSetManager.getInstance(CharSetManager.java:48)
at com.java4less.textprinter.TextPrinter.startJob(TextPrinter.java:1265)
at com.print_service.PrintServiceThreadExecutor$PrintServiceThread.printReports(PrintServiceThreadExecutor.java:89)
at com.print_service.PrintServiceThreadExecutor$PrintServiceThread.run(PrintServiceThreadExecutor.java:124)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
at java.lang.Thread.run(Thread.java:797)

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