diff --git a/eo-runtime/src/main/java/org/eolang/Dataized.java b/eo-runtime/src/main/java/org/eolang/Dataized.java
index b5e08f50b16..85069e62624 100644
--- a/eo-runtime/src/main/java/org/eolang/Dataized.java
+++ b/eo-runtime/src/main/java/org/eolang/Dataized.java
@@ -83,10 +83,10 @@ public byte[] take() {
             raw.addAll(ex.messages());
             Collections.reverse(raw);
             final Phi enc = ex.enclosure();
-            if ("go.to.token.jump".equals(enc.forma())) {
+            if (Dataized.isGoToTokenJump(enc)) {
                 throw new EOerror.ExError(enc);
             }
-            if (String.format("%s.string", PhPackage.GLOBAL).equals(enc.forma())) {
+            if (Dataized.isString(enc)) {
                 raw.add(
                     String.format(
                         "\"%s\"",
@@ -185,4 +185,22 @@ public Boolean asBool() {
     public Bytes asBytes() {
         return new BytesOf(this.take());
     }
+
+    /**
+     * Check if object is go.to.token.jump.
+     * @param phi The object
+     * @return True if it is go.to.token.jump
+     */
+    private static boolean isGoToTokenJump(final Phi phi) {
+        return phi.forma().endsWith(".go.to.token.jump");
+    }
+
+    /**
+     * Check if object is string.
+     * @param phi The object
+     * @return True if it is string
+     */
+    private static boolean isString(final Phi phi) {
+        return phi.forma().endsWith(".string");
+    }
 }
diff --git a/eo-runtime/src/main/java/org/eolang/PhDefault.java b/eo-runtime/src/main/java/org/eolang/PhDefault.java
index d640d20afc7..75b71449b26 100644
--- a/eo-runtime/src/main/java/org/eolang/PhDefault.java
+++ b/eo-runtime/src/main/java/org/eolang/PhDefault.java
@@ -20,7 +20,7 @@
  * @since 0.1
  * @checkstyle DesignForExtensionCheck (500 lines)
  */
-@SuppressWarnings("PMD.TooManyMethods")
+@SuppressWarnings({"PMD.GodClass", "PMD.TooManyMethods"})
 public class PhDefault implements Phi, Cloneable {
     /**
      * Logger.
@@ -210,14 +210,20 @@ public String forma() {
         if (PhDefault.class.getSimpleName().equals(name)) {
             form = "[]";
         } else {
-            form = String.join(
-                ".",
-                PhPackage.GLOBAL,
-                PhDefault.TO_FORMA.matcher(
-                    this.getClass().getPackageName()
-                ).replaceAll("$1"),
-                name
-            );
+            final String pkg = this.getClass().getPackageName();
+            final String simplified;
+            if ("org.eolang".equals(pkg)) {
+                simplified = "";
+            } else {
+                simplified = PhDefault.TO_FORMA.matcher(pkg).replaceAll("$1");
+            }
+            final String prefix;
+            if (simplified.isEmpty()) {
+                prefix = PhPackage.GLOBAL;
+            } else {
+                prefix = String.join(".", PhPackage.GLOBAL, simplified);
+            }
+            form = String.join(".", prefix, name);
         }
         return form;
     }
diff --git a/eo-runtime/src/main/java/org/eolang/PhSafe.java b/eo-runtime/src/main/java/org/eolang/PhSafe.java
index f46e0b5f1fa..c43ee9c916a 100644
--- a/eo-runtime/src/main/java/org/eolang/PhSafe.java
+++ b/eo-runtime/src/main/java/org/eolang/PhSafe.java
@@ -148,8 +148,8 @@ public String locator() {
     public String forma() {
         return String.join(
             ".",
-            this.getClass().getPackageName(),
-            this.oname
+                PhPackage.GLOBAL,
+                this.oname
         );
     }
 
diff --git a/eo-runtime/src/test/java/org/eolang/DataizedTest.java b/eo-runtime/src/test/java/org/eolang/DataizedTest.java
index a3aa638e4e7..6202628bd56 100644
--- a/eo-runtime/src/test/java/org/eolang/DataizedTest.java
+++ b/eo-runtime/src/test/java/org/eolang/DataizedTest.java
@@ -13,7 +13,6 @@
 import org.hamcrest.MatcherAssert;
 import org.hamcrest.Matchers;
 import org.junit.jupiter.api.Assertions;
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.parallel.Execution;
 import org.junit.jupiter.api.parallel.ExecutionMode;
@@ -22,20 +21,9 @@
  * Test case for {@link Dataized}.
  *
  * @since 0.22
- * @todo #4538:30min Enable the test {@link DataizedTest#doesNotLogGoToTokenJump}.
- *  The test was disabled because we've moved EO objects from default package 'org.eolang'
- *  to Q, but java classes are placed in 'org.eolang' java package. That's why the method
- *  {@link PhDefault#forma()} and {@link PhSafe#forma()} started to work incorrectly and
- *  show 'org.eolang'. Need to fix these methods, make sure they work as expected and enable
- *  the test.
- * @todo #4538:30min Enable the test {@link DataizedTest#logsAllLocationsWithPhSafe()}.
- *  The test was disabled because we've moved EO objects from default package 'org.eolang'
- *  to Q. This somehow affected {@link PhSafe} and {@link PhDefault} classes.
- *  Need to fix it and enable the test
  */
 @Execution(ExecutionMode.SAME_THREAD)
 final class DataizedTest {
-    @Disabled
     @Test
     @SuppressWarnings({"PMD.UnitTestContainsTooManyAsserts", "PMD.UnnecessaryLocalRule"})
     void logsAllLocationsWithPhSafe() {
@@ -92,7 +80,6 @@ void failsWhenError() {
         );
     }
 
-    @Disabled
     @Test
     @SuppressWarnings({"PMD.UnitTestContainsTooManyAsserts", "PMD.UnnecessaryLocalRule"})
     void doesNotLogGoToTokenJump() {