java.lang.ClassFormatError: Illegal UTF8 string in constant pool in class file oracle/jdbc/driver/T4CMAREngine

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java.lang.ClassFormatError: Illegal UTF8 string in constant pool in class file oracle/jdbc/driver/T4CMAREngine
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)

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