gnodet-bot commented on code in PR #13118:
URL: https://github.com/apache/maven/pull/13118#discussion_r4011029959


##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultSettingsBuilder.java:
##########
@@ -159,35 +167,24 @@ private Settings readSettings(
         Settings settings;
 
         try {
-            try (InputStream is = settingsSource.openStream()) {
-                settings = settingsXmlFactory.read(XmlReaderRequest.builder()
-                        .inputStream(is)
-                        .location(settingsSource.getLocation())
-                        .strict(true)
-                        .build());
-            } catch (XmlReaderException e) {
-                try (InputStream is = settingsSource.openStream()) {
-                    settings = 
settingsXmlFactory.read(XmlReaderRequest.builder()
-                            .inputStream(is)
-                            .location(settingsSource.getLocation())
-                            .strict(false)
-                            .build());
-                    Location loc = e.getCause() instanceof XMLStreamException 
xe ? xe.getLocation() : null;
-                    problems.reportProblem(new DefaultBuilderProblem(
-                            settingsSource.getLocation(),
-                            loc != null ? loc.getLineNumber() : -1,
-                            loc != null ? loc.getColumnNumber() : -1,
-                            e,
-                            e.getMessage(),
-                            BuilderProblem.Severity.WARNING));
-                }
+            SettingsParser parser = selectParser(settingsSource);
+            try {
+                settings = parser.parse(settingsSource, 
Map.of(SettingsParser.STRICT, true));
+            } catch (SettingsParserException e) {
+                settings = parser.parse(settingsSource, 
Map.of(SettingsParser.STRICT, false));
+                problems.reportProblem(new DefaultBuilderProblem(
+                        settingsSource.getLocation(),
+                        e.getLineNumber(),
+                        e.getColumnNumber(),
+                        e,
+                        e.getMessage(),
+                        BuilderProblem.Severity.WARNING));
             }
-        } catch (XmlReaderException e) {
-            Location loc = e.getCause() instanceof XMLStreamException xe ? 
xe.getLocation() : null;
+        } catch (SettingsParserException e) {
             problems.reportProblem(new DefaultBuilderProblem(
                     settingsSource.getLocation(),
-                    loc != null ? loc.getLineNumber() : -1,
-                    loc != null ? loc.getColumnNumber() : -1,
+                    e.getLineNumber(),
+                    e.getColumnNumber(),
                     e,
                     "Non-parseable settings " + settingsSource.getLocation() + 
": " + e.getMessage(),
                     BuilderProblem.Severity.FATAL));

Review Comment:
   test selectParser comment at 183-190



##########
api/maven-api-spi/src/main/java/org/apache/maven/api/spi/SettingsParserException.java:
##########
@@ -0,0 +1,71 @@
+/*
+ * 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.maven.api.spi;
+
+import org.apache.maven.api.annotations.Experimental;
+import org.apache.maven.api.services.MavenException;
+
+/**
+ * A syntax error in a settings source, with optional one-based line and 
column numbers.
+ *
+ * @since 4.1.0
+ */
+@Experimental
+public class SettingsParserException extends MavenException {
+
+    /**
+     * The one-based index of the line containing the error.
+     */
+    private final int lineNumber;
+
+    /**
+     * The one-based index of the column containing the error.
+     */
+    private final int columnNumber;
+
+    public SettingsParserException() {
+        this(null, null);
+    }
+
+    public SettingsParserException(String message) {
+        this(message, null);
+    }
+
+    public SettingsParserException(String message, Throwable cause) {
+        this(message, -1, -1, cause);
+    }
+
+    public SettingsParserException(String message, int lineNumber, int 
columnNumber, Throwable cause) {
+        super(message, cause);
+        this.lineNumber = lineNumber;
+        this.columnNumber = columnNumber;
+    }
+
+    public SettingsParserException(Throwable cause) {
+        this(null, cause);
+    }

Review Comment:
   test null message



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