Stacktrace:] with root cause

org.apache.jasper.JasperException: Unable to compile class for JSP:?

An error occurred at line: 1 in the generated java file

The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files

An error occurred at line: 1 in the generated java file

The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files

Stacktrace:

at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)

at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)

at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:469)