Hello!
I started seeing this error when doing certain things in SQlDeveloper (current version 17.2, but it also happens in 17.4). I first noticed it when I was trying to use the export wizard:

But It also appears when I check Tools>Preferences>Database>Advanced. Again, the "URI has an authority component" error appears:

java.lang.IllegalArgumentException: URI has an authority component
at java.io.File.<init>(File.java:423)
at oracle.dbtools.raptor.ui.URLFileChooser.toFile(URLFileChooser.java:402)
at oracle.dbtools.raptor.ui.URLFileChooser.setToFirstContextPathDirectory(URLFileChooser.java:1495)
at oracle.dbtools.raptor.ui.URLFileChooser.setCurrentDirectoryFromPathContext(URLFileChooser.java:1471)
at oracle.dbtools.raptor.ui.URLFileChooser.setDefaultPathContext(URLFileChooser.java:1537)
...
This also happens when I try to create or edit connections:

After clicking ok, I can not see my oracle connection option:

Has anybody experienced this issue? I tried to google the error, but found nothing so far.
Thanks.