From 41c629cd585a0664c8e84569b68457cb8586c31c Mon Sep 17 00:00:00 2001
From: Adam Retter <adam.retter@googlemail.com>
Date: Sun, 31 Jan 2021 04:00:49 +0100
Subject: [PATCH] Fix issues with Windows Path handling (#178)

---
 .../verify.groovy                             |  4 +--
 .../AbstractJavaGeneratorMojo.java            | 10 ++++---
 .../jaxb2/shared/FileSystemUtilities.java     | 28 +++++++++++++------
 3 files changed, 27 insertions(+), 15 deletions(-)

diff --git a/src/it/xjc-handles-spaces-in-filenames/verify.groovy b/src/it/xjc-handles-spaces-in-filenames/verify.groovy
index 21706f68..b42861cb 100644
--- a/src/it/xjc-handles-spaces-in-filenames/verify.groovy
+++ b/src/it/xjc-handles-spaces-in-filenames/verify.groovy
@@ -57,7 +57,7 @@ File expectedObjectFactoryFile = new File(basedir, pathToLeafPackage + "ObjectFa
 | [7]: E:\Mojohaus\jaxb2-maven-plugin\target\it\xjc-handles-spaces-in-filenames\target\generated-sources\jaxb\META-INF\sun-jaxb.episode
 | [8]: -b
 | [9]: E:\Mojohaus\jaxb2-maven-plugin\target\it\xjc-handles-spaces-in-filenames\src\main\xjb\spaced filename.xjb
-| [10]: /E:/Mojohaus/jaxb2-maven-plugin/target/it/xjc-handles-spaces-in-filenames/src/main/xsd/address.xsd
+| [10]: E:\Mojohaus\jaxb2-maven-plugin\target\it\xjc-handles-spaces-in-filenames\src\main\xsd\address.xsd
 |
 +=================== [End 11 XJC Arguments]
  */
@@ -66,7 +66,7 @@ def xjcArgumentPatternPrefix = "\\| \\[\\p{Digit}+\\]: ";
 Pattern expectedBArgumentPattern  = Pattern.compile(xjcArgumentPatternPrefix + "\\-b");
 Pattern expectedXjbArgumentPattern = Pattern.compile(xjcArgumentPatternPrefix
         + ".*src/main/xjb/spaced filename.xjb".replace("/", sep));
-Pattern expectedSourceArgumentPattern = Pattern.compile(xjcArgumentPatternPrefix + ".*src/main/xsd/address.xsd");
+Pattern expectedSourceArgumentPattern = Pattern.compile(xjcArgumentPatternPrefix + ".*src(/|\\\\)main(/|\\\\)xsd(/|\\\\)address.xsd");
 
 boolean foundBArgument = false;
 boolean foundXjbArgument = false;
diff --git a/src/main/java/org/codehaus/mojo/jaxb2/javageneration/AbstractJavaGeneratorMojo.java b/src/main/java/org/codehaus/mojo/jaxb2/javageneration/AbstractJavaGeneratorMojo.java
index f3a45452..632a6d40 100644
--- a/src/main/java/org/codehaus/mojo/jaxb2/javageneration/AbstractJavaGeneratorMojo.java
+++ b/src/main/java/org/codehaus/mojo/jaxb2/javageneration/AbstractJavaGeneratorMojo.java
@@ -42,6 +42,7 @@
 import java.io.File;
 import java.io.FileWriter;
 import java.net.HttpURLConnection;
+import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLConnection;
 import java.util.ArrayList;
@@ -661,10 +662,11 @@ private String[] getXjcArguments(final String classPath, final String episodeFil
 
                 // Shorten the argument if possible.
                 if ("file".equalsIgnoreCase(current.getProtocol())) {
-                    unwrappedSourceXSDs.add(FileSystemUtilities.relativize(
-                            current.getPath(),
-                            new File(System.getProperty("user.dir")),
-                            true));
+                    try {
+                        unwrappedSourceXSDs.add(new File(current.toURI()).getPath());
+                    } catch (final URISyntaxException e) {
+                        throw new MojoExecutionException(e.getMessage(), e);
+                    }
                 } else {
                     unwrappedSourceXSDs.add(current.toString());
                 }
diff --git a/src/main/java/org/codehaus/mojo/jaxb2/shared/FileSystemUtilities.java b/src/main/java/org/codehaus/mojo/jaxb2/shared/FileSystemUtilities.java
index 4ee12c91..e58333b9 100644
--- a/src/main/java/org/codehaus/mojo/jaxb2/shared/FileSystemUtilities.java
+++ b/src/main/java/org/codehaus/mojo/jaxb2/shared/FileSystemUtilities.java
@@ -34,6 +34,8 @@
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLDecoder;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -535,18 +537,26 @@ public static String relativize(final String path,
         Validate.notNull(path, "path");
         Validate.notNull(parentDir, "parentDir");
 
-        final String basedirPath = FileSystemUtilities.getCanonicalPath(parentDir);
-        String toReturn = path;
+        final Path p = Paths.get(path);
+        final Path pd = parentDir.toPath();
 
-        // Compare case insensitive
-        if (path.toLowerCase().startsWith(basedirPath.toLowerCase())) {
-            toReturn = path.substring(basedirPath.length());
+        String platformSpecificPath;
+        if (p.normalize().startsWith(pd.normalize().toString())) {
+            platformSpecificPath = pd.relativize(p).toString();
+        } else {
+            platformSpecificPath = p.toString();
         }
 
-        // Handle whitespace in the argument.
-        return removeInitialFileSep && toReturn.startsWith(File.separator)
-                ? toReturn.substring(File.separator.length())
-                : toReturn;
+        if (removeInitialFileSep && platformSpecificPath.startsWith(File.separator)) {
+            platformSpecificPath = platformSpecificPath.substring(File.separator.length());
+        }
+
+        // NOTE: it appears this function is meant to preserve the file separator that was passed in the path
+        if (path.indexOf('\\') == -1) {
+            platformSpecificPath = platformSpecificPath.replace('\\', '/');
+        }
+
+        return platformSpecificPath;
     }
 
     /**