Error occurred during initialization of VM

java.lang.ClassFormatError: Unknown constant tag 26 in class file sun/jkernel/DownloadManager

        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1679)

        at java.lang.Runtime.loadLibrary0(Runtime.java:823)

        at java.lang.System.loadLibrary(System.java:1029)

        at java.lang.System.initializeSystemClass(System.java:1087)