WSL2: Find and Delete Zone.Identifier files

What is PremGen space?

PremGen is the short form of Perminant Generation which is a part of Heap Memory/Space, Where MetaData about classes are storing in PremGen space before java8

What is MetaSpace?

In java8 MetaSpace is also using for storing MetaData of classes , but metaspace is a native memory, metaspace is not a part of heap memory/space, so there is a high chance to avoid memory shortage issues in java8