fix(#4717): enable fibonacci integration test in pom.xml and update properties

eo-integration-tests/pom.xml

@@ -210,18 +210,6 @@
         <configuration combine.self="override">
           <skipInstallation>${skipITs}</skipInstallation>
           <skipInvocation>${skipITs}</skipInvocation>
-          <!--
-            @todo #4702:90min Enable the fibonacci integration test.
-            Currently, the fibonacci integration test is disabled because it
-            fails with the following error:
-            Couldn't find object 'Φ.org.eolang.examples' because there's
-            no class or package 'EOorg.EOeolang.EOexamples'.
-            That said, all the classes and packages are successfully generated by
-            the eo-maven-plugin during the build process.
-          -->
-          <pomExcludes>
-            <exclude>fibonacci/pom.xml</exclude>
-          </pomExcludes>
         </configuration>
       </plugin>
     </plugins>

eo-integration-tests/src/it/fibonacci/invoker.properties

@@ -2,4 +2,4 @@
 # SPDX-License-Identifier: MIT
 
 invoker.mavenOpts = -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
-invoker.goals = clean test
+invoker.goals = clean test -X

eo-integration-tests/src/it/fibonacci/pom.xml

@@ -34,11 +34,6 @@
   </properties>
   <build>
     <plugins>
-      <plugin>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration combine.self="override"/>
-      </plugin>
       <plugin>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
@@ -61,20 +56,18 @@
         <version>@project.version@</version>
         <executions>
           <execution>
+            <id>compile</id>
             <goals>
               <goal>register</goal>
-              <goal>assemble</goal>
+              <goal>compile</goal>
               <goal>transpile</goal>
             </goals>
           </execution>
         </executions>
         <configuration>
-          <unrollExitError>true</unrollExitError>
-          <foreign>${project.build.directory}/eo/foreign.csv</foreign>
-          <foreignFormat>csv</foreignFormat>
-          <placed>${project.build.directory}/eo/placed.json</placed>
-          <placedFormat>json</placedFormat>
-          <trackTransformationSteps>true</trackTransformationSteps>
+          <ignoreRuntime>true</ignoreRuntime>
+          <failOnWarning>false</failOnWarning>
+          <skipLinting>true</skipLinting>
         </configuration>
       </plugin>
       <plugin>
@@ -83,6 +76,7 @@
         <version>3.6.2</version>
         <executions>
           <execution>
+            <id>run-eo-fibonacci-app</id>
             <phase>test</phase>
             <goals>
               <goal>java</goal>

eo-maven-plugin/src/main/java/org/eolang/maven/MjTranspile.java

@@ -259,6 +259,9 @@ clazz, new FileGenerationReport(saved, tgt, target)
      * @param generated Path to generated sources
      * @return Amount of created files
      * @throws IOException If fails to create a file
+     * @todo #4717:90min Move {@link #pinfos(Path)} method to a separate class.
+     *  Currently, this method violates Single Responsibility Principle of
+     *  MjTranspile class. After moving, make sure to cover it with unit tests.
      */
     private static int pinfos(final Path generated) throws IOException {
         final int size;
@@ -269,7 +272,7 @@ private static int pinfos(final Path generated) throws IOException {
             for (final Path dir : dirs) {
                 final String pkg = generated.relativize(dir).toString()
                     .replace(File.separator, ".");
-                new Saved(
+                final Path saved = new Saved(
                     String.join(
                         "\n",
                         "/**",
@@ -284,9 +287,14 @@ private static int pinfos(final Path generated) throws IOException {
                     ),
                     dir.resolve("package-info.java")
                 ).value();
+                Logger.debug(MjTranspile.class, "Created %s", saved);
             }
             size = dirs.size();
         } else {
+            Logger.info(
+                MjTranspile.class,
+                "No generated sources found, skipping package-info.java creation"
+            );
             size = 0;
         }
         return size;

eo-runtime/src/main/java/org/eolang/PhPackage.java

@@ -122,6 +122,16 @@ public byte[] delta() {
      * Load phi object by package name from ClassLoader.
      * @param fqn FQN of the EO object
      * @return Phi
+     * @todo #4717:90min Check 'package-info.class' existence before looking for an object.
+     *  Recently, we got an error when 'maven-compiler-plugin' removed 'package-info.class'
+     *  during compilation and we got quite confusing error message:
+     *  ```
+     *  Couldn't find object 'Φ.org.eolang.examples' because there's no class or package
+     *  'EOorg.EOeolang.EOexamples' EOorg.EOeolang.EOexamples
+     *  ```
+     *  Having said that, the 'EOorg.EOeolang.EOexamples' package does exist.
+     *  The error tells nothing about missing 'package-info.class'. We need to check for the
+     *  existence of 'package-info.class' before trying to find an object.
      */
     @SuppressWarnings("PMD.PreserveStackTrace")
     private Phi loadPhi(final String fqn) {