diff --git a/pom.xml b/pom.xml
index 4947c3f04..825f176e9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -123,7 +123,7 @@ SOFTWARE.
     <dependency>
       <groupId>org.eolang</groupId>
       <artifactId>lints</artifactId>
-      <version>0.0.21</version>
+      <version>0.0.22</version>
     </dependency>
     <dependency>
       <groupId>org.cactoos</groupId>
diff --git a/src/main/java/org/eolang/jeo/representation/VerifiedEo.java b/src/main/java/org/eolang/jeo/representation/VerifiedEo.java
index 4587a3621..716f3250b 100644
--- a/src/main/java/org/eolang/jeo/representation/VerifiedEo.java
+++ b/src/main/java/org/eolang/jeo/representation/VerifiedEo.java
@@ -28,8 +28,10 @@
 import com.jcabi.xml.XMLDocument;
 import java.io.IOException;
 import java.util.Collection;
+import java.util.stream.Collectors;
 import org.eolang.lints.Defect;
 import org.eolang.lints.Program;
+import org.eolang.lints.Severity;
 import org.xembly.Directive;
 import org.xembly.ImpossibleModificationException;
 import org.xembly.Xembler;
@@ -65,12 +67,14 @@ XML asXml() throws ImpossibleModificationException {
         try {
             final Collection<Defect> defects = new Program(
                 new StrictXML(res)
-            ).defects();
+            ).defects().stream().filter(defect -> defect.severity().equals(Severity.ERROR))
+                .collect(Collectors.toList());
             if (defects.size() > 0) {
                 throw new IllegalStateException(
                     String.format(
-                        "EO is incorrect: %s",
-                        defects
+                        "EO is incorrect: %s, %n%s%n",
+                        defects,
+                        res
                     )
                 );
             }
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesClassProperties.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesClassProperties.java
index 9c86e1e06..66811970e 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesClassProperties.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesClassProperties.java
@@ -23,7 +23,9 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import java.security.SecureRandom;
 import java.util.Iterator;
+import java.util.Random;
 import org.eolang.jeo.representation.DefaultVersion;
 import org.xembly.Directive;
 import org.xembly.Directives;
@@ -35,6 +37,8 @@
  */
 public final class DirectivesClassProperties implements Iterable<Directive> {
 
+    private static final Random RANDOM = new SecureRandom();
+
     /**
      * Class bytecode version.
      */
@@ -126,18 +130,28 @@ public DirectivesClassProperties(
 
     @Override
     public Iterator<Directive> iterator() {
+        final int number = Math.abs(DirectivesClassProperties.RANDOM.nextInt());
         final Directives directives = new Directives()
-            .append(new DirectivesValue("version", this.version))
-            .append(new DirectivesValue("access", this.access));
+            .append(
+                new DirectivesValue(
+                    DirectivesClassProperties.format("version", number),
+                    this.version
+                )
+            )
+            .append(new DirectivesValue(format("access", number), this.access));
         if (this.signature != null) {
-            directives.append(new DirectivesValue("signature", this.signature));
+            directives.append(new DirectivesValue(format("signature", number), this.signature));
         }
         if (this.supername != null) {
-            directives.append(new DirectivesValue("supername", this.supername));
+            directives.append(new DirectivesValue(format("supername", number), this.supername));
         }
         if (this.interfaces != null) {
-            directives.append(new DirectivesValues("interfaces", this.interfaces));
+            directives.append(new DirectivesValues(format("interfaces", number), this.interfaces));
         }
         return directives.iterator();
     }
+
+    private static String format(final String name, final int number) {
+        return String.format("%s-%d", name, number);
+    }
 }
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesField.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesField.java
index cb810ff0b..09ed2ee25 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesField.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesField.java
@@ -23,8 +23,10 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import java.security.SecureRandom;
 import java.util.Iterator;
 import java.util.Optional;
+import java.util.Random;
 import lombok.EqualsAndHashCode;
 import lombok.ToString;
 import org.eolang.jeo.representation.PrefixedName;
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesJeoObject.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesJeoObject.java
index 246bab329..a41c4fa39 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesJeoObject.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesJeoObject.java
@@ -23,9 +23,11 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import java.security.SecureRandom;
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Random;
 import java.util.stream.Collectors;
 import org.xembly.Directive;
 import org.xembly.Directives;
@@ -38,6 +40,8 @@
  */
 public final class DirectivesJeoObject implements Iterable<Directive> {
 
+    private final static Random RANDOM = new SecureRandom();
+
     /**
      * The base of the object.
      */
@@ -118,10 +122,11 @@ public DirectivesJeoObject(final String base, final String name, final List<Dire
 
     @Override
     public Iterator<Directive> iterator() {
+        final int number = Math.abs(DirectivesJeoObject.RANDOM.nextInt());
         final Directives directives = new Directives().add("o")
             .attr("base", new JeoFqn(this.base).fqn());
         if (!this.name.isEmpty()) {
-            directives.attr("name", this.name);
+            directives.attr("name", String.format("%s-%d", this.name, number));
         }
         return directives
             .append(this.inner.stream().reduce(new Directives(), Directives::append))
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMaxs.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMaxs.java
index b192ccfeb..241316f91 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMaxs.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMaxs.java
@@ -23,7 +23,9 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import java.security.SecureRandom;
 import java.util.Iterator;
+import java.util.Random;
 import org.xembly.Directive;
 
 /**
@@ -32,6 +34,8 @@
  */
 public final class DirectivesMaxs implements Iterable<Directive> {
 
+    private static final Random RANDOM = new SecureRandom();
+
     /**
      * Max stack size.
      */
@@ -62,10 +66,11 @@ public DirectivesMaxs(final int stack, final int locals) {
 
     @Override
     public Iterator<Directive> iterator() {
+        final int number = Math.abs(DirectivesMaxs.RANDOM.nextInt());
         return new DirectivesJeoObject(
             "maxs",
-            new DirectivesValue("stack", this.stack),
-            new DirectivesValue("locals", this.locals)
+            new DirectivesValue(String.format("stack-%d", number), this.stack),
+            new DirectivesValue(String.format("locals-%d", number), this.locals)
         ).iterator();
     }
 }
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java
index 7fe75bfc0..a24fa3886 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java
@@ -73,11 +73,11 @@ public DirectivesMetas(
     @Override
     public Iterator<Directive> iterator() {
         final Directives metas = new Directives().add("metas").append(this.pckg());
-        this.jeo()
-            .stream()
-            .filter(object -> !object.isEmpty())
-            .map(DirectivesMetas::alias)
-            .forEach(metas::append);
+//        this.jeo()
+//            .stream()
+//            .filter(object -> !object.isEmpty())
+//            .map(DirectivesMetas::alias)
+//            .forEach(metas::append);
         return metas.up().iterator();
     }
 
@@ -136,10 +136,22 @@ private Set<String> jeo() {
      * @return Alias directive.
      */
     private static Directives alias(final String object) {
+        String substring;
+        if (object.contains(".")) {
+            substring = object.substring(object.indexOf(".") + 1);
+        } else {
+            substring = object;
+        }
+
+        if (substring.contains(".")) {
+            substring = substring.substring(0, substring.indexOf("."));
+        }
+
         return new Directives()
             .add("meta")
             .add("head").set("alias").up()
-            .add("tail").set(object).up()
+            .add("tail").set(substring + " " + object).up()
+            .add("part").set(substring).up()
             .add("part").set(object).up()
             .up();
     }
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java
index 16650bf13..224a56946 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java
@@ -23,8 +23,10 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import java.security.SecureRandom;
 import java.util.Iterator;
 import java.util.Optional;
+import java.util.Random;
 import java.util.concurrent.atomic.AtomicReference;
 import org.objectweb.asm.Opcodes;
 import org.xembly.Directive;
@@ -36,6 +38,8 @@
  */
 public final class DirectivesMethodProperties implements Iterable<Directive> {
 
+    private static final Random RANDOM = new SecureRandom();
+
     /**
      * Method access modifiers.
      */
@@ -125,11 +129,12 @@ public DirectivesMethodProperties(
 
     @Override
     public Iterator<Directive> iterator() {
+        final int number = Math.abs(DirectivesMethodProperties.RANDOM.nextInt());
         return new Directives()
-            .append(new DirectivesValue("access", this.access))
-            .append(new DirectivesValue("descriptor", this.descriptor))
-            .append(new DirectivesValue("signature", this.signature))
-            .append(new DirectivesValues("exceptions", this.exceptions))
+            .append(new DirectivesValue(String.format("access-%d", number), this.access))
+            .append(new DirectivesValue(String.format("descriptor-%d", number), this.descriptor))
+            .append(new DirectivesValue(String.format("signature-%d", number), this.signature))
+            .append(new DirectivesValues(String.format("exceptions-%d", number), this.exceptions))
             .append(this.max.get())
             .append(this.params)
             .iterator();