ExtraClasspath strips file: from windows paths

[gregw]

Jetty version

=9.4.32

OS type/version

Windows

Description

See #5131 (comment) for description that generates:

java.nio.file.InvalidPathException: Illegal char <:> at index 2: /C:/Users/xxx/.gradle/caches/modules-2/files-2.1/org.constretto/constretto-api/2.2.3/7e7a08dcb9abdfc4fb2a610a6edcad1bb40c1444/constretto-api-2.2.3.jar
	at sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:182)
	at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153)
	at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77)
	at sun.nio.fs.WindowsPath.parse(WindowsPath.java:94)
	at sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:255)
	at java.nio.file.Paths.get(Paths.java:84)
	at org.eclipse.jetty.util.resource.Resource.newResource(Resource.java:179)
	at org.eclipse.jetty.util.resource.Resource.newResource(Resource.java:152)
	at org.eclipse.jetty.server.handler.ContextHandler.newResource(ContextHandler.java:2027)
	at org.eclipse.jetty.webapp.WebAppClassLoader.addClassPath(WebAppClassLoader.java:272)
	at org.eclipse.jetty.webapp.WebAppClassLoader.<init>(WebAppClassLoader.java:195)
	at org.eclipse.jetty.webapp.WebAppClassLoader.<init>(WebAppClassLoader.java:158)
	at org.eclipse.jetty.webapp.WebAppContext.preConfigure(WebAppContext.java:467)
	at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:523)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
	at org.eclipse.jetty.server.handler.StatisticsHandler.doStart(StatisticsHandler.java:253)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
	at org.eclipse.jetty.server.Server.start(Server.java:423)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
	at org.eclipse.jetty.server.Server.doStart(Server.java:387)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)

[gregw]

A string like /C:/some/path is neither a URI nor a file path, thus it cannot be unambiguously supported. It was a bug if previous versions did accept that as a file path.