Fix Path.copyToRecursively when copying across file systems #KT-55935

Merge-request: KT-MR-8705
Merged-by: Abduqodiri Qurbonzoda <abduqodiri.qurbonzoda@jetbrains.com>

libraries/stdlib/jdk7/src/kotlin/io/path/PathRecursiveFunctions.kt

@@ -161,11 +161,13 @@ public fun Path.copyToRecursively(
             // TODO: KT-38678
             // source and target files are the same entry, continue recursive copy operation
         } else {
-            val realPath = this.toRealPath()
-            val isSubdirectory = if (targetExistsAndNotSymlink) {
-                target.toRealPath().startsWith(realPath)
-            } else {
-                target.parent?.let { it.exists() && it.toRealPath().startsWith(realPath) } ?: false
+            val isSubdirectory = when {
+                this.fileSystem != target.fileSystem ->
+                    false
+                targetExistsAndNotSymlink ->
+                    target.toRealPath().startsWith(this.toRealPath())
+                else ->
+                    target.parent?.let { it.exists() && it.toRealPath().startsWith(this.toRealPath()) } ?: false
             }
             if (isSubdirectory)
                 throw FileSystemException(
@@ -178,7 +180,7 @@ public fun Path.copyToRecursively(
 
     fun destination(source: Path): Path {
         val relativePath = source.relativeTo(this@copyToRecursively)
-        return target.resolve(relativePath)
+        return target.resolve(relativePath.pathString)
     }
 
     fun error(source: Path, exception: Exception): FileVisitResult {