The constants in BaseTypeSignature reference a ScanResult.

• As a result it cannot be garbage collected and after the fix for LoadClass keeps a reference to ScanResult #399 the closed instance's remaining memory footprint has a gravely increased.
• In a concurrent situation when using multiple ScanResults this is not threadsafe
• It is confusing to have an eventually changing ownership of those constants

The ownership seems to be set up by method return types

Is the scanResult reference even required for the native type signatures? Maybe each static constant should be replaced with a value per ScanResult.