bug(#4016): unspile with file separator

Author: maxonfjvipon

eo-maven-plugin/src/main/java/org/eolang/maven/TranspileMojo.java

@@ -16,6 +16,7 @@
 import com.yegor256.xsline.TrJoined;
 import com.yegor256.xsline.Train;
 import com.yegor256.xsline.Xsline;
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -299,7 +300,8 @@ private static int pinfos(final Path generated) throws IOException {
                 .filter(file -> Files.isDirectory(file) && !file.equals(generated))
                 .collect(Collectors.toList());
             for (final Path dir : dirs) {
-                final String pkg = generated.relativize(dir).toString().replace("/", ".");
+                final String pkg = generated.relativize(dir).toString()
+                    .replace(File.separator, ".");
                 new Saved(
                     String.join(
                         "\n",

eo-maven-plugin/src/main/java/org/eolang/maven/UnspileMojo.java

@@ -5,6 +5,7 @@
 package org.eolang.maven;
 
 import com.jcabi.log.Logger;
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -67,7 +68,7 @@ private void unspile(final Walk classes) {
             .map(
                 path -> UnspileMojo.JAVA.matcher(
                     generated.relativize(path).toString()
-                ).replaceAll(".class")
+                ).replaceAll(".class").replace(File.separatorChar, '/')
             )
             .collect(Collectors.toSet());
         included.addAll(UnspileMojo.INNER);

eo-maven-plugin/src/test/java/org/eolang/maven/UnspileMojoTest.java

@@ -50,7 +50,7 @@ void keepsSpecifiedClasses(@Mktmp final Path temp) throws IOException {
             "clz", maven.classesPath().resolve("EOorg/package-info.class")
         ).value();
         final Path eolang = new Saved(
-            "pgk", maven.classesPath().resolve("EOorg/EOeolang/package-info.class")
+            "pkg", maven.classesPath().resolve("EOorg/EOeolang/package-info.class")
         ).value();
         MatcherAssert.assertThat(
             "UnspileMojo must keep files matching to keepBinaries globs",