Why Does My Java 8 Code Fail to Compile with a \'java.lang.reflect.AnnotatedElement\' Error?

Error Encountered: LogManager (l4j2) Issue with Java 8

When switching from JDK 7u45 to 8u20, users may encounter an error when using LogManager. Specifically, the code may display:

The type java.lang.reflect.AnnotatedElement cannot be resolved. It is indirectly referenced from required .class files

Underlying Problem:

The error stems from using an IDE or code processing tool with its own compiler that does not support Java 8.

Reason:

To compile code referencing newer Java 8 classes, the compiler must be capable of loading their class files.

Solution:

To resolve this issue, update the IDE or code processing tool to a version that fully supports Java 8.

Note:

Even if newer Java 8 features are not being utilized, the compiler still requires an updated version to recognize the new class files. This includes tools that use ECJ as an embedded compiler.

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