diff --git a/eo-maven-plugin/pom.xml b/eo-maven-plugin/pom.xml
index 80cae9fbd..790a7f3e0 100644
--- a/eo-maven-plugin/pom.xml
+++ b/eo-maven-plugin/pom.xml
@@ -70,6 +70,16 @@ SOFTWARE.
       <artifactId>jcabi-manifests</artifactId>
       <!-- version from parent POM -->
     </dependency>
+    <dependency>
+      <groupId>com.jcabi</groupId>
+      <artifactId>jcabi-aspects</artifactId>
+      <version>0.26.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.aspectj</groupId>
+      <artifactId>aspectjrt</artifactId>
+      <version>1.9.21</version>
+    </dependency>
     <dependency>
       <groupId>net.sf.saxon</groupId>
       <artifactId>Saxon-HE</artifactId>
@@ -268,6 +278,18 @@ SOFTWARE.
   </dependencies>
   <build>
     <plugins>
+      <plugin>
+        <groupId>com.jcabi</groupId>
+        <artifactId>jcabi-maven-plugin</artifactId>
+        <version>0.17.0</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>ajc</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <artifactId>maven-invoker-plugin</artifactId>
         <configuration>
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/dependencies/DcsWithRuntime.java b/eo-maven-plugin/src/main/java/org/eolang/maven/dependencies/DcsWithRuntime.java
index 67283e0dd..5502c3d3e 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/dependencies/DcsWithRuntime.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/dependencies/DcsWithRuntime.java
@@ -23,10 +23,12 @@
  */
 package org.eolang.maven.dependencies;
 
+import com.jcabi.aspects.RetryOnFailure;
 import com.jcabi.xml.XMLDocument;
 import java.io.IOException;
 import java.net.URL;
 import java.util.Iterator;
+import java.util.concurrent.TimeUnit;
 import org.apache.maven.model.Dependency;
 import org.cactoos.list.ListOf;
 import org.cactoos.scalar.Sticky;
@@ -104,6 +106,7 @@ public final class DcsWithRuntime implements Iterable<Dependency> {
      *
      * @return Runtime dependency from Maven Central.
      */
+    @RetryOnFailure(delay = 1L, unit = TimeUnit.SECONDS)
     private static Unchecked<Dependency> mavenDependency() {
         final String url = String.format(
             "https://repo.maven.apache.org/maven2/%s/maven-metadata.xml",
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/hash/CommitHashesText.java b/eo-maven-plugin/src/main/java/org/eolang/maven/hash/CommitHashesText.java
index d09128fa8..1e3465021 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/hash/CommitHashesText.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/hash/CommitHashesText.java
@@ -23,9 +23,14 @@
  */
 package org.eolang.maven.hash;
 
+import com.jcabi.aspects.RetryOnFailure;
+import java.net.URL;
+import java.util.concurrent.TimeUnit;
 import org.cactoos.Text;
+import org.cactoos.scalar.Unchecked;
 import org.cactoos.text.Sticky;
 import org.cactoos.text.TextEnvelope;
+import org.cactoos.text.TextOf;
 
 /**
  * Commit hashes table as text from objectionary.
@@ -36,23 +41,35 @@ import org.cactoos.text.TextEnvelope;
  */
 final class CommitHashesText extends TextEnvelope {
 
+    /**
+     * Tags.
+     */
+    private static final String HOME = "https://home.objectionary.com/tags.txt";
+
     /**
      * Cache.
      */
-    private static final Text CACHE = new Sticky(new ObjectionaryCommitHashes());
+    private static final Text CACHE = new Sticky(
+        CommitHashesText.asText(CommitHashesText.HOME)
+    );
 
     /**
      * Constructor.
      */
     CommitHashesText() {
-        this(CommitHashesText.CACHE);
+        super(CommitHashesText.CACHE);
     }
 
     /**
-     * Constructor.
-     * @param text The text to of commit hashes.
+     * Download from the URL and return the content.
+     * @param url The URL with tags
+     * @return The body of the web page
      */
-    private CommitHashesText(final Text text) {
-        super(text);
+    @RetryOnFailure(delay = 1L, unit = TimeUnit.SECONDS)
+    private static Text asText(final String url) {
+        final String body = new Unchecked<>(
+            () -> new TextOf(new URL(url)).asString()
+        ).value();
+        return new TextOf(body);
     }
 }
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/ObjectsIndex.java b/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/ObjectsIndex.java
index 7e0d6b8bf..3fca86a14 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/ObjectsIndex.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/ObjectsIndex.java
@@ -23,13 +23,16 @@
  */
 package org.eolang.maven.objectionary;
 
+import com.jcabi.aspects.RetryOnFailure;
 import java.net.URL;
 import java.util.Set;
+import java.util.concurrent.TimeUnit;
 import org.cactoos.Scalar;
 import org.cactoos.Text;
 import org.cactoos.iterable.Mapped;
 import org.cactoos.scalar.ScalarOf;
 import org.cactoos.scalar.Sticky;
+import org.cactoos.scalar.Unchecked;
 import org.cactoos.set.SetOf;
 import org.cactoos.text.Split;
 import org.cactoos.text.TextOf;
@@ -42,6 +45,11 @@ import org.cactoos.text.TextOf;
  */
 final class ObjectsIndex {
 
+    /**
+     * Tags.
+     */
+    private static final String HOME = "https://home.objectionary.com/objectionary.lst";
+
     /**
      * Cached objects index.
      */
@@ -59,9 +67,7 @@ final class ObjectsIndex {
                         new Mapped<>(
                             Text::asString,
                             new Split(
-                                new TextOf(
-                                    new URL("https://home.objectionary.com/objectionary.lst")
-                                ),
+                                ObjectsIndex.asText(new URL(ObjectsIndex.HOME)),
                                 "\n"
                             )
                         )
@@ -102,4 +108,15 @@ final class ObjectsIndex {
             .replace('/', '.')
             .substring(name.indexOf('/') + 1);
     }
+
+    /**
+     * Download from the URL and return the content.
+     * @param url The URL with tags
+     * @return The body of the web page
+     */
+    @RetryOnFailure(delay = 1L, unit = TimeUnit.SECONDS)
+    private static Text asText(final URL url) {
+        final String body = new Unchecked<>(() -> new TextOf(url).asString()).value();
+        return new TextOf(body);
+    }
 }
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/OyRemote.java b/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/OyRemote.java
index 47ff1d7ee..bf09e2c0f 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/OyRemote.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/objectionary/OyRemote.java
@@ -23,11 +23,13 @@
  */
 package org.eolang.maven.objectionary;
 
+import com.jcabi.aspects.RetryOnFailure;
 import com.jcabi.log.Logger;
 import java.io.IOException;
 import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.util.concurrent.TimeUnit;
 import org.cactoos.Input;
 import org.cactoos.io.InputOf;
 import org.cactoos.io.InputWithFallback;
@@ -85,6 +87,7 @@ public final class OyRemote implements Objectionary {
     }
 
     @Override
+    @RetryOnFailure(delay = 1L, unit = TimeUnit.SECONDS)
     public boolean contains(final String name) throws IOException {
         final int code = ((HttpURLConnection) this.template.value(name).openConnection())
             .getResponseCode();
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/hash/ObjectionaryCommitHashes.java b/eo-maven-plugin/src/test/java/org/eolang/maven/hash/CommitHashesTextTest.java
similarity index 57%
rename from eo-maven-plugin/src/main/java/org/eolang/maven/hash/ObjectionaryCommitHashes.java
rename to eo-maven-plugin/src/test/java/org/eolang/maven/hash/CommitHashesTextTest.java
index 0e5f73134..f9b454d8a 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/hash/ObjectionaryCommitHashes.java
+++ b/eo-maven-plugin/src/test/java/org/eolang/maven/hash/CommitHashesTextTest.java
@@ -23,43 +23,26 @@
  */
 package org.eolang.maven.hash;
 
-import java.net.URL;
-import org.cactoos.scalar.Unchecked;
-import org.cactoos.text.TextEnvelope;
-import org.cactoos.text.TextOf;
+import com.yegor256.WeAreOnline;
+import org.hamcrest.MatcherAssert;
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 
 /**
- * CommitHashes which we download from Objectionary.
+ * Test case for {@link CommitHashesText}.
  *
- * @since 0.30
+ * @since 0.37.0
  */
-final class ObjectionaryCommitHashes extends TextEnvelope {
+final class CommitHashesTextTest {
 
-    /**
-     * Tags.
-     */
-    private static final String HOME = "https://home.objectionary.com/tags.txt";
-
-    /**
-     * Constructor.
-     */
-    ObjectionaryCommitHashes() {
-        this(ObjectionaryCommitHashes.HOME);
-    }
-
-    /**
-     * Constructor.
-     * @param tags The url from which to download tags list.
-     */
-    private ObjectionaryCommitHashes(final String tags) {
-        this(new Unchecked<>(() -> new URL(tags)).value());
-    }
-
-    /**
-     * Constructor.
-     * @param tags The url from which to download tags list.
-     */
-    private ObjectionaryCommitHashes(final URL tags) {
-        super(new TextOf(tags));
+    @Test
+    @ExtendWith(WeAreOnline.class)
+    void downloadsDefaultList() throws Exception {
+        MatcherAssert.assertThat(
+            "CommitHashesText downloads the default list of hashes from Objectionary",
+            new CommitHashesText().asString(),
+            Matchers.containsString("master")
+        );
     }
 }
diff --git a/eo-maven-plugin/src/test/java/org/eolang/maven/objectionary/OyRemoteTest.java b/eo-maven-plugin/src/test/java/org/eolang/maven/objectionary/OyRemoteTest.java
index b46c0b1cf..8048fd122 100644
--- a/eo-maven-plugin/src/test/java/org/eolang/maven/objectionary/OyRemoteTest.java
+++ b/eo-maven-plugin/src/test/java/org/eolang/maven/objectionary/OyRemoteTest.java
@@ -46,7 +46,7 @@ final class OyRemoteTest {
     @Test
     void buildsCorrectUrl() throws Exception {
         MatcherAssert.assertThat(
-            "TO ADD ASSERTION MESSAGE",
+            "OyRemove.UrlOy generates correct URL",
             new OyRemote.UrlOy(
                 "https://raw/objectionary/home/%s/objects/%s.eo",
                 "abcde"
@@ -74,7 +74,7 @@ final class OyRemoteTest {
         final CommitHash hash = new ChRemote("master");
         final Objectionary objectionary = new OyRemote(hash);
         MatcherAssert.assertThat(
-            "TO ADD ASSERTION MESSAGE",
+            "OyRemote positively checks the presence of the object in Objectionary",
             objectionary.contains("org.eolang.io.stdout"),
             Matchers.is(true)
         );
diff --git a/eo-runtime/src/main/eo/org/eolang/cti.eo b/eo-runtime/src/main/eo/org/eolang/cti.eo
index b0f0edde7..a79d6e034 100644
--- a/eo-runtime/src/main/eo/org/eolang/cti.eo
+++ b/eo-runtime/src/main/eo/org/eolang/cti.eo
@@ -1,6 +1,6 @@
 # The MIT License (MIT)
 #
-#  2016-2023 Objectionary.com
+# Copyright (c) 2016-2024 Objectionary.com
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal