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The following commit(s) were added to refs/heads/main by this push:
     new e9d1404b2d More URL -> URI refactoring
e9d1404b2d is described below

commit e9d1404b2d8c7713847592023771d58e032423c5
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Nov 16 19:04:55 2022 +0000

    More URL -> URI refactoring
    
    This one is a little more interesting as we were deliberately using one
    of the URL constructors.
---
 java/org/apache/tomcat/util/buf/UriUtil.java       | 77 ++++++++++++++++++----
 .../tomcat/util/descriptor/LocalResolver.java      |  8 +--
 test/org/apache/tomcat/util/buf/TestUriUtil.java   | 67 +++++++++++++++++++
 webapps/docs/changelog.xml                         |  5 ++
 4 files changed, 140 insertions(+), 17 deletions(-)

diff --git a/java/org/apache/tomcat/util/buf/UriUtil.java 
b/java/org/apache/tomcat/util/buf/UriUtil.java
index a1c56e51c7..12a1280ace 100644
--- a/java/org/apache/tomcat/util/buf/UriUtil.java
+++ b/java/org/apache/tomcat/util/buf/UriUtil.java
@@ -17,7 +17,10 @@
 package org.apache.tomcat.util.buf;
 
 import java.io.File;
+import java.io.IOException;
 import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.net.URL;
 import java.util.regex.Pattern;
 
@@ -102,22 +105,22 @@ public final class UriUtil {
     }
 
 
-    public static URL buildJarUrl(File jarFile) throws MalformedURLException {
+    public static URL buildJarUrl(File jarFile) throws IOException {
         return buildJarUrl(jarFile, null);
     }
 
 
-    public static URL buildJarUrl(File jarFile, String entryPath) throws 
MalformedURLException {
+    public static URL buildJarUrl(File jarFile, String entryPath) throws 
IOException {
         return buildJarUrl(jarFile.toURI().toString(), entryPath);
     }
 
 
-    public static URL buildJarUrl(String fileUrlString) throws 
MalformedURLException {
+    public static URL buildJarUrl(String fileUrlString) throws IOException {
         return buildJarUrl(fileUrlString, null);
     }
 
 
-    public static URL buildJarUrl(String fileUrlString, String entryPath) 
throws MalformedURLException {
+    public static URL buildJarUrl(String fileUrlString, String entryPath) 
throws IOException {
         String safeString = makeSafeForJarUrl(fileUrlString);
         StringBuilder sb = new StringBuilder();
         sb.append(safeString);
@@ -125,13 +128,25 @@ public final class UriUtil {
         if (entryPath != null) {
             sb.append(makeSafeForJarUrl(entryPath));
         }
-        return new URL("jar", null, -1, sb.toString());
+        URI uri;
+        try {
+            uri = new URI("jar", sb.toString(), null);
+        } catch (URISyntaxException e) {
+            throw new IOException(e);
+        }
+        return uri.toURL();
     }
 
 
-    public static URL buildJarSafeUrl(File file) throws MalformedURLException {
+    public static URL buildJarSafeUrl(File file) throws IOException {
         String safe = makeSafeForJarUrl(file.toURI().toString());
-        return new URL(safe);
+        URI uri;
+        try {
+            uri = new URI(safe);
+        } catch (URISyntaxException e) {
+            throw new IOException(e);
+        }
+        return uri.toURL();
     }
 
 
@@ -173,9 +188,9 @@ public final class UriUtil {
      *
      * @return The equivalent JAR URL
      *
-     * @throws MalformedURLException If the conversion fails
+     * @throws IOException If the conversion fails
      */
-    public static URL warToJar(URL warUrl) throws MalformedURLException {
+    public static URL warToJar(URL warUrl) throws IOException {
         // Assumes that the spec is absolute and starts war:file:/...
         String file = warUrl.getFile();
         if (file.contains("*/")) {
@@ -185,8 +200,13 @@ public final class UriUtil {
         } else if (PATTERN_CUSTOM != null) {
             file = file.replaceFirst(PATTERN_CUSTOM.pattern(), "!/");
         }
-
-        return new URL("jar", warUrl.getHost(), warUrl.getPort(), file);
+        URI uri;
+        try {
+            uri = new URI("jar", file, null);
+        } catch (URISyntaxException e) {
+            throw new IOException(e);
+        }
+        return uri.toURL();
     }
 
 
@@ -228,4 +248,39 @@ public final class UriUtil {
         }
         return false;
     }
+
+
+    /**
+     * Replicates the behaviour of {@link URI#resolve(String)} and adds support
+     * for URIs of the form {@code jar:file:/... }.
+     *
+     * @param base      The base URI to resolve against
+     * @param target    The path to resolve
+     *
+     * @return  The resulting URI as per {@link URI#resolve(String)}
+     *
+     * @throws MalformedURLException
+     *              If the base URI cannot be converted to a URL
+     * @throws URISyntaxException
+     *              If the resulting URL cannot be converted to a URI
+     */
+    public static URI resolve(URI base, String target) throws 
MalformedURLException, URISyntaxException {
+        if (base.getScheme().equals("jar")) {
+            /*
+             * Previously used:
+             * new URL(base.toURL(), target).toURI()
+             * This delegated the work to the jar stream handler which 
correctly
+             * resolved the target against the base.
+             *
+             * Deprecation of all the URL constructors mean a different 
approach
+             * is required.
+             */
+            URI fileUri = new URI(base.getSchemeSpecificPart());
+            URI fileUriResolved = fileUri.resolve(target);
+
+            return new URI("jar:" + fileUriResolved.toString());
+        } else {
+            return base.resolve(target);
+        }
+    }
 }
diff --git a/java/org/apache/tomcat/util/descriptor/LocalResolver.java 
b/java/org/apache/tomcat/util/descriptor/LocalResolver.java
index 68516e57c3..dbfd593a8b 100644
--- a/java/org/apache/tomcat/util/descriptor/LocalResolver.java
+++ b/java/org/apache/tomcat/util/descriptor/LocalResolver.java
@@ -21,9 +21,9 @@ import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URI;
 import java.net.URISyntaxException;
-import java.net.URL;
 import java.util.Map;
 
+import org.apache.tomcat.util.buf.UriUtil;
 import org.apache.tomcat.util.res.StringManager;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
@@ -119,12 +119,8 @@ public class LocalResolver implements EntityResolver2 {
             if (base == null) {
                 systemUri = new URI(systemId);
             } else {
-                // Can't use URI.resolve() because "jar:..." URLs are not valid
-                // hierarchical URIs so resolve() does not work. new URL()
-                // delegates to the jar: stream handler and it manages to 
figure
-                // it out.
                 URI baseUri = new URI(base);
-                systemUri = new URL(baseUri.toURL(), systemId).toURI();
+                systemUri = UriUtil.resolve(baseUri, systemId);
             }
             systemUri = systemUri.normalize();
         } catch (URISyntaxException e) {
diff --git a/test/org/apache/tomcat/util/buf/TestUriUtil.java 
b/test/org/apache/tomcat/util/buf/TestUriUtil.java
new file mode 100644
index 0000000000..fc7531c13e
--- /dev/null
+++ b/test/org/apache/tomcat/util/buf/TestUriUtil.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.tomcat.util.buf;
+
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestUriUtil {
+
+    @Test
+    public void testResolve01() throws URISyntaxException, 
MalformedURLException {
+        URI base = new URI("file:/aaa/bbb/base.xml");
+        String target = "target.xml";
+        URI result = UriUtil.resolve(base, target);
+        Assert.assertEquals(new URI("file:/aaa/bbb/target.xml"), result);
+    }
+
+    @Test
+    public void testResolve02() throws URISyntaxException, 
MalformedURLException {
+        URI base = new URI("file:/aaa/bbb/base.xml");
+        String target = "../target.xml";
+        URI result = UriUtil.resolve(base, target);
+        Assert.assertEquals(new URI("file:/aaa/target.xml"), result);
+    }
+
+    @Test
+    public void testResolve03() throws URISyntaxException, 
MalformedURLException {
+        URI base = new URI("jar:file:/aaa/bbb!/ccc/ddd/base.xml");
+        String target = "target.xml";
+        URI result = UriUtil.resolve(base, target);
+        Assert.assertEquals(new URI("jar:file:/aaa/bbb!/ccc/ddd/target.xml"), 
result);
+    }
+
+    @Test
+    public void testResolve04() throws URISyntaxException, 
MalformedURLException {
+        URI base = new URI("jar:file:/aaa/bbb!/ccc/ddd/base.xml");
+        String target = "../target.xml";
+        URI result = UriUtil.resolve(base, target);
+        Assert.assertEquals(new URI("jar:file:/aaa/bbb!/ccc/target.xml"), 
result);
+    }
+
+    @Test
+    public void testResolve05() throws URISyntaxException, 
MalformedURLException {
+        URI base = new URI("jar:file:/aaa/bbb!/ccc/ddd/base.xml");
+        String target = "../../target.xml";
+        URI result = UriUtil.resolve(base, target);
+        Assert.assertEquals(new URI("jar:file:/aaa/bbb!/target.xml"), result);
+    }
+}
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index ddf984a862..753b22eea8 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -248,6 +248,11 @@
         Update the packaged version of the Apache Tomcat Migration Tool for
         Jakarta EE to 1.0.5. (markt)
       </update>
+      <scode>
+        Refactor code base to replace use of URL constructors. While they are
+        deprecated in Java 20 onwards, the reasons for deprecation are valid 
for
+        all versions so move away from them now. (markt)
+      </scode>
     </changelog>
   </subsection>
 </section>


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