The following test run in module mode fails with "java.nio.file.ProviderNotFoundException: Provider "jar" not found" exception.

> cat ZipFileSystemProviderTest.java
package test;
import java.nio.file.*;
import java.net.URI;
import java.util.Map;
import java.util.Collections;

public class ZipFileSystemProviderTest {

    public static void main(String[] args) throws Exception {
        try {
            String urip = "jar:file:///tmp/test.zip";
            URI uri = new URI(urip);

            Map<String, ?> env = Collections.emptyMap();

            FileSystem fs = FileSystems.newFileSystem(uri, env);

        } catch (Exception e) {
                System.out.println("Exception: " + e); e.printStackTrace();
        }
    }
}

> cat module-info.java
module test @ 1.0 {
  requires jdk.base;
      
  class test.ZipFileSystemProviderTest;
}

# compile and install
> javac -d . *.java
  jar cf test.jar test/ module-info.class
  jmod -L mlib/ install test.jar


# run
> java -L mlib -m test
Exception: java.nio.file.ProviderNotFoundException: Provider "jar" not foundjava.nio.file.ProviderNotFoundException: Provider "jar" not found at java.nio.file.FileSystems.newFileSystem(FileSystems.java:337)
        at java.nio.file.FileSystems.newFileSystem(FileSystems.java:272)
        at test.ZipFileSystemProviderTest.main(ZipFileSystemProviderTest.java:17)


The test works fine in legacy mode.

Adding "requires jdk.zipfs;" into module-info.java leads to following exception

Exception in thread "main" java.util.ServiceConfigurationError: java.nio.file.spi.FileSystemProvider: Provider com.sun.nio.zipfs.ZipFileSystemProvider not found at java.util.ServiceLoader.fail(ServiceLoader.java:231) at java.util.ServiceLoader.access$400(ServiceLoader.java:181)
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:367) at java.util.ServiceLoader$1.next(ServiceLoader.java:438)
        at java.nio.file.spi.FileSystemProvider.loadInstalledProviders(FileSystemProvider.java:119)
        at java.nio.file.spi.FileSystemProvider.access$000(FileSystemProvider.java:77)
        at java.nio.file.spi.FileSystemProvider$1.run(FileSystemProvider.java:169)
        at java.nio.file.spi.FileSystemProvider$1.run(FileSystemProvider.java:166)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.nio.file.spi.FileSystemProvider.installedProviders(FileSystemProvider.java:166)
        at java.nio.file.FileSystems.newFileSystem(FileSystems.java:320)
        at java.nio.file.FileSystems.newFileSystem(FileSystems.java:272)
        at test.ZipFileSystemProviderTest.main(ZipFileSystemProviderTest.java:17)