diff --git a/src/main/java/org/eolang/jeo/representation/XmirRepresentation.java b/src/main/java/org/eolang/jeo/representation/XmirRepresentation.java
index f19743d0c..aa18ecacd 100644
--- a/src/main/java/org/eolang/jeo/representation/XmirRepresentation.java
+++ b/src/main/java/org/eolang/jeo/representation/XmirRepresentation.java
@@ -27,7 +27,6 @@
 import java.nio.file.Path;
 import org.eolang.jeo.representation.bytecode.Bytecode;
 import org.eolang.jeo.representation.xmir.JcabiXmlDoc;
-import org.eolang.jeo.representation.xmir.NativeXmlDoc;
 import org.eolang.jeo.representation.xmir.XmlDoc;
 import org.eolang.jeo.representation.xmir.XmlNode;
 import org.eolang.jeo.representation.xmir.XmlProgram;
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlDoc.java b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlDoc.java
index ed4acb8fb..5408d603f 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlDoc.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlDoc.java
@@ -88,10 +88,10 @@ private static XML open(final Path path) {
                 String.format("Can't find file '%s'", path),
                 exception
             );
-        } catch (final Exception broken) {
+        } catch (final RuntimeException broken) {
             throw new IllegalStateException(
                 String.format(
-                    "Can't parse XML from the file '%s'",
+                    "Can't parse Jcabi XML from the file '%s'",
                     path
                 ),
                 broken
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
index 5addca3da..0e9d79102 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
@@ -54,8 +54,8 @@ public final class JcabiXmlNode implements XmlNode {
      * Ctor.
      * @param xml XML string.
      */
-    JcabiXmlNode(final String xml) {
-        this(new XMLDocument(xml).inner().getFirstChild());
+    JcabiXmlNode(final String... xml) {
+        this(new XMLDocument(String.join("\n", xml)).inner().getFirstChild());
     }
 
     /**
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlNode.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlNode.java
index 5cb7c0a9e..2953a656a 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlNode.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlNode.java
@@ -100,6 +100,9 @@ public interface XmlNode {
      */
     boolean hasAttribute(String name, String value);
 
+    /**
+     * Validate the node.
+     */
     void validate();
 
 }
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlProgram.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlProgram.java
index 6d5a27d44..cce0b24fc 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlProgram.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlProgram.java
@@ -24,14 +24,8 @@
 package org.eolang.jeo.representation.xmir;
 
 import com.jcabi.xml.XML;
-import com.jcabi.xml.XMLDocument;
-import org.eolang.jeo.representation.ClassName;
 import org.eolang.jeo.representation.PrefixedName;
 import org.eolang.jeo.representation.bytecode.BytecodeProgram;
-import org.eolang.jeo.representation.directives.DirectivesClass;
-import org.eolang.jeo.representation.directives.DirectivesMetas;
-import org.eolang.jeo.representation.directives.DirectivesProgram;
-import org.xembly.Xembler;
 
 /**
  * XMIR Program.
@@ -49,7 +43,7 @@ public final class XmlProgram {
      * @param lines Xmir lines.
      */
     public XmlProgram(final String... lines) {
-        this(new XMLDocument(String.join("\n", lines)));
+        this(new JcabiXmlNode(lines));
     }
 
     /**
@@ -57,23 +51,7 @@ public XmlProgram(final String... lines) {
      * @param xml Raw XMIR.
      */
     public XmlProgram(final XML xml) {
-        this(new NativeXmlNode(xml.inner().getFirstChild()));
-    }
-
-    /**
-     * Constructor.
-     * @param name Class name.
-     */
-    XmlProgram(final ClassName name) {
-        this(
-            new XMLDocument(
-                new Xembler(
-                    new DirectivesProgram(
-                        new DirectivesClass(name), new DirectivesMetas(name)
-                    )
-                ).xmlQuietly()
-            )
-        );
+        this(new JcabiXmlDoc(xml).root());
     }
 
     /**
diff --git a/src/test/java/org/eolang/jeo/representation/xmir/JcabiXmlDocTest.java b/src/test/java/org/eolang/jeo/representation/xmir/JcabiXmlDocTest.java
index c5438f383..6ebcdf8f1 100644
--- a/src/test/java/org/eolang/jeo/representation/xmir/JcabiXmlDocTest.java
+++ b/src/test/java/org/eolang/jeo/representation/xmir/JcabiXmlDocTest.java
@@ -56,8 +56,11 @@ void createsFromFile(@TempDir final Path dir) throws IOException {
     @Test
     void findsFirstChildInFileWithComment(@TempDir final Path dir) throws IOException {
         final Path path = dir.resolve("test.xml");
-        Files.write(path, String.format("<!-- Some comment -->%s", JcabiXmlDocTest.XML)
-            .getBytes(StandardCharsets.UTF_8));
+        Files.write(
+            path,
+            String.format("<!-- Some comment -->%s", JcabiXmlDocTest.XML)
+                .getBytes(StandardCharsets.UTF_8)
+        );
         MatcherAssert.assertThat(
             "Can't read XML from file",
             new JcabiXmlDoc(path).root().firstChild(),
diff --git a/src/test/java/org/eolang/jeo/representation/xmir/XmlProgramTest.java b/src/test/java/org/eolang/jeo/representation/xmir/XmlProgramTest.java
index 836340720..9dd6717c9 100644
--- a/src/test/java/org/eolang/jeo/representation/xmir/XmlProgramTest.java
+++ b/src/test/java/org/eolang/jeo/representation/xmir/XmlProgramTest.java
@@ -23,6 +23,7 @@
  */
 package org.eolang.jeo.representation.xmir;
 
+import com.jcabi.xml.XMLDocument;
 import org.eolang.jeo.representation.ClassName;
 import org.eolang.jeo.representation.bytecode.BytecodeClass;
 import org.eolang.jeo.representation.bytecode.BytecodeProgram;
@@ -51,7 +52,18 @@ void convertsToBytecode() {
         final String name = "FooBar";
         MatcherAssert.assertThat(
             "Can't convert program to bytecode.",
-            new XmlProgram(new ClassName(pckg, name)).bytecode(),
+            new XmlProgram(
+                new XMLDocument(
+                    new Xembler(
+                        new DirectivesProgram(
+                            new DirectivesClass(new ClassName(pckg, name)),
+                            new DirectivesMetas(
+                                new ClassName(pckg, name)
+                            )
+                        )
+                    ).xmlQuietly()
+                )
+            ).bytecode(),
             Matchers.equalTo(
                 new BytecodeProgram(
                     pckg,