On 15/12/2022 19:14, Rick Hillegas wrote:
I see many warnings when I build Apache Derby's code and javadoc with
Open JDK build 20-ea+27-2213. In particular, I see a number of
warnings introduced by the following change:
- JDK-8294241: Deprecate URL public constructors
I naively tried to fix these warnings by changing instances of
new URL(urlString)
to
(new URI(urlString)).toURL()
Unfortunately, this breaks the Derby code. When I test Derby, I see
errors like the following:
java.lang.IllegalArgumentException: URI is not absolute
at java.base/java.net.URL.of(URL.java:854)
at java.base/java.net.URI.toURL(URI.java:1144)
at org.apache.derby.impl.store.raw.RawStore.backup(RawStore.java:641)
Can you give me advice about the best way to workaround the
deprecation of the public URL constructors? I am looking for a
solution which handles relative URL strings.
URL::toURL is specified to throw if the URI is not absolute although the
IAE may be a bit surprising as there isn't any arguments.
Can you give an example of the "relative URL strings" so we can at least
see which URI scheme this is.
-Alan.
