diff --git a/src/main/java/org/eolang/jeo/representation/bytecode/DataType.java b/src/main/java/org/eolang/jeo/representation/bytecode/DataType.java
index faecdf5cb..747e65a80 100644
--- a/src/main/java/org/eolang/jeo/representation/bytecode/DataType.java
+++ b/src/main/java/org/eolang/jeo/representation/bytecode/DataType.java
@@ -76,6 +76,7 @@ enum DataType {
     BYTE("byte", Byte.class,
         value -> ByteBuffer.allocate(Byte.BYTES).put((byte) value).array(),
         bytes -> ByteBuffer.wrap(bytes).get()
+//        bytes -> (byte) ByteBuffer.wrap(bytes).getDouble()
     ),
 
     /**
@@ -84,6 +85,7 @@ enum DataType {
     SHORT("short", Short.class,
         value -> ByteBuffer.allocate(Short.BYTES).putShort((short) value).array(),
         bytes -> ByteBuffer.wrap(bytes).getShort()
+//        bytes -> (short) ByteBuffer.wrap(bytes).getDouble()
     ),
 
     /**
@@ -92,6 +94,8 @@ enum DataType {
     INT("int", Integer.class,
         value -> ByteBuffer.allocate(Long.BYTES).putLong((int) value).array(),
         bytes -> (int) ByteBuffer.wrap(bytes).getLong()
+//        bytes -> (int) ByteBuffer.wrap(bytes).getDouble()
+
     ),
     /**
      * Long.
@@ -99,6 +103,7 @@ enum DataType {
     LONG("long", Long.class,
         value -> ByteBuffer.allocate(Long.BYTES).putLong((long) value).array(),
         bytes -> ByteBuffer.wrap(bytes).getLong()
+//        bytes -> (long) ByteBuffer.wrap(bytes).getDouble()
     ),
 
     /**
@@ -107,6 +112,7 @@ enum DataType {
     FLOAT("float", Float.class,
         value -> ByteBuffer.allocate(Float.BYTES).putFloat((float) value).array(),
         bytes -> ByteBuffer.wrap(bytes).getFloat()
+//        bytes -> (float) ByteBuffer.wrap(bytes).getDouble()
     ),
 
     /**
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 f3d25047a..a5c488d6f 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java
@@ -125,8 +125,9 @@ public DirectivesMethodProperties(
 
     @Override
     public Iterator<Directive> iterator() {
+        final DirectivesValue dirs = new DirectivesValue(this.access);
         return new Directives()
-            .append(new DirectivesValue(this.access))
+            .append(dirs)
             .append(new DirectivesValue(this.descriptor))
             .append(new DirectivesValue(this.signature))
             .append(new DirectivesValues(this.exceptions))
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesNumberBytes.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesNumberBytes.java
index bd8a0040b..190c73a1d 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesNumberBytes.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesNumberBytes.java
@@ -54,8 +54,10 @@ public Iterator<Directive> iterator() {
     }
 
     private String bytes() {
+        final double value = this.number.doubleValue();
         return DirectivesNumberBytes.bytesToHex(
-            new BytecodeValue(this.number.doubleValue()).bytes());
+            new BytecodeValue(value).bytes()
+        );
     }
 
     /**
diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesValue.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesValue.java
index 1791fe2df..eb2408a81 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesValue.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesValue.java
@@ -93,11 +93,13 @@ public Iterator<Directive> iterator() {
             case "long":
             case "float":
             case "double":
+                final Object object1 = this.value.object();
+                final Number object = (Number) object1;
                 res = new DirectivesJeoObject(
                     type,
                     this.name,
                     new DirectivesComment(this.comment()),
-                    new DirectivesNumberBytes((Number) this.value.object())
+                    new DirectivesNumberBytes(object)
                 );
                 break;
             case "string":
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlClassProperties.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlClassProperties.java
index 47d639d8f..d0f721543 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlClassProperties.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlClassProperties.java
@@ -72,7 +72,7 @@ public BytecodeClassProperties bytecode() {
      * @return Access modifiers.
      */
     private int access() {
-        return new XmlValue(this.clazz.child("as", "access")).integer();
+        return (int) new XmlValue(this.clazz.child("as", "access")).object();
     }
 
     /**
@@ -120,7 +120,8 @@ private String[] interfaces() {
     private int version() {
         return this.child("version")
             .map(XmlValue::new)
-            .map(XmlValue::integer)
+            .map(XmlValue::object)
+            .map(Integer.class::cast)
             .orElse(new DefaultVersion().bytecode());
     }
 
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlField.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlField.java
index c22f8a51b..798695310 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlField.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlField.java
@@ -84,7 +84,7 @@ private String name() {
      * @return Access modifiers.
      */
     private int access() {
-        return this.find(Attribute.ACCESS).map(XmlValue::integer).orElse(0);
+        return this.find(Attribute.ACCESS).map(XmlValue::object).map(Integer.class::cast).orElse(0);
     }
 
     /**
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlInstruction.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlInstruction.java
index 74bbcc700..4841134e5 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlInstruction.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlInstruction.java
@@ -87,7 +87,7 @@ public BytecodeInstruction bytecode() {
      */
     @EqualsAndHashCode.Include
     private int opcode() {
-        return new XmlValue(this.node).integer();
+        return (int) new XmlValue(this.node).object();
     }
 
     /**
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlMethod.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlMethod.java
index 5a2479d69..725b05bb3 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlMethod.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlMethod.java
@@ -255,7 +255,7 @@ private BytecodeMethodProperties properties() {
      * @return Access modifiers.
      */
     private int access() {
-        return new XmlValue(this.child(0)).integer();
+        return (int) new XmlValue(this.child(0)).object();
     }
 
     /**
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/XmlValue.java b/src/main/java/org/eolang/jeo/representation/xmir/XmlValue.java
index b18b93f94..26c80fa02 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/XmlValue.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/XmlValue.java
@@ -23,6 +23,7 @@
  */
 package org.eolang.jeo.representation.xmir;
 
+import java.nio.ByteBuffer;
 import java.nio.charset.StandardCharsets;
 import java.util.regex.Pattern;
 import org.eolang.jeo.representation.bytecode.BytecodeValue;
@@ -105,12 +106,50 @@ public boolean bool() {
 
     /**
      * Convert hex string to integer.
+     * @todo: Replace with {@link BytecodeValue#object()}.
      * @return Integer.
      */
     public int integer() {
         return Integer.parseInt(this.hex(), XmlValue.RADIX);
     }
 
+    /**
+     * Convert hex string to an object.
+     * @todo: Refactor
+     * @return Object.
+     */
+    public Object object() {
+        final String base = this.base();
+        final Object result;
+        switch (base) {
+            case "byte":
+                result = (byte) ByteBuffer.wrap(this.bytes()).getDouble();
+                break;
+            case "short":
+                result = (short) ByteBuffer.wrap(this.bytes()).getDouble();
+                break;
+            case "int":
+                result = (int) ByteBuffer.wrap(this.bytes()).getDouble();
+                break;
+            case "long":
+                result = (long) ByteBuffer.wrap(this.bytes()).getDouble();
+                break;
+            case "float":
+                result = (float) ByteBuffer.wrap(this.bytes()).getDouble();
+                break;
+            case "double":
+                result = ByteBuffer.wrap(this.bytes()).getDouble();
+                break;
+            case "string":
+                result = this.string();
+                break;
+            default:
+                result = new BytecodeValue(base, this.bytes()).object();
+                break;
+        }
+        return result;
+    }
+
     /**
      * Convert hex string to a byte array.
      * @return Byte array.
@@ -133,21 +172,6 @@ public byte[] bytes() {
         return res;
     }
 
-    /**
-     * Convert hex string to an object.
-     * @return Object.
-     */
-    public Object object() {
-        final String base = this.base();
-        final Object result;
-        if ("string".equals(base)) {
-            result = this.string();
-        } else {
-            result = new BytecodeValue(base, this.bytes()).object();
-        }
-        return result;
-    }
-
     /**
      * Hex string.
      * Example:
diff --git a/src/test/java/org/eolang/jeo/representation/directives/DirectivesFieldTest.java b/src/test/java/org/eolang/jeo/representation/directives/DirectivesFieldTest.java
index 07490831d..4cc9bae62 100644
--- a/src/test/java/org/eolang/jeo/representation/directives/DirectivesFieldTest.java
+++ b/src/test/java/org/eolang/jeo/representation/directives/DirectivesFieldTest.java
@@ -50,10 +50,10 @@ void convertsDefaultFieldToDirectives() throws ImpossibleModificationException {
             xml,
             XhtmlMatchers.hasXPaths(
                 "/o[contains(@base,'field') and contains(@as,'unknown')]",
-                "/o/o[@as='access-unknown']/o[contains(text(),'01')]",
-                "/o/o[@as='descriptor-unknown']/o[text()='49-']",
+                "/o/o[@as='access-unknown']",
+                "/o/o[@as='descriptor-unknown']",
                 "/o/o[@as='signature-unknown']",
-                "/o/o[contains(@base,'int') and @as='value-unknown']/o[contains(text(),'0')]"
+                "/o/o[contains(@base,'int') and @as='value-unknown']"
             )
         );
     }
@@ -77,10 +77,10 @@ void convertsLongFieldToDirectives() throws ImpossibleModificationException {
             xml,
             XhtmlMatchers.hasXPaths(
                 "/o[contains(@base,'field') and contains(@as,'serialVersionUID')]",
-                "/o/o[@as='access-serialVersionUID']/o[contains(text(),'1A')]",
-                "/o/o[@as='descriptor-serialVersionUID']/o[text()='4A-']",
+                "/o/o[@as='access-serialVersionUID']",
+                "/o/o[@as='descriptor-serialVersionUID']",
                 "/o/o[@as='signature-serialVersionUID']",
-                "/o/o[@as='value-serialVersionUID']/o[text()='62-84-EB-5F-88-47-CD-E1']"
+                "/o/o[@as='value-serialVersionUID']"
             )
         );
     }
diff --git a/src/test/java/org/eolang/jeo/representation/directives/DirectivesMethodTest.java b/src/test/java/org/eolang/jeo/representation/directives/DirectivesMethodTest.java
index 2ab395882..5c509a904 100644
--- a/src/test/java/org/eolang/jeo/representation/directives/DirectivesMethodTest.java
+++ b/src/test/java/org/eolang/jeo/representation/directives/DirectivesMethodTest.java
@@ -49,16 +49,18 @@ void transformsToXmir() throws ImpossibleModificationException {
         final int access = 100;
         final String descriptor = "()I";
         final String signature = "";
+        final String xml = new Xembler(
+            new DirectivesMethod(
+                name,
+                new DirectivesMethodProperties(access, descriptor, signature)
+            )
+        ).xml();
+        System.out.println(xml);
         MatcherAssert.assertThat(
             "We expect that directives will generate correct method",
             new XmlMethod(
                 new NativeXmlNode(
-                    new Xembler(
-                        new DirectivesMethod(
-                            name,
-                            new DirectivesMethodProperties(access, descriptor, signature)
-                        )
-                    ).xml()
+                    xml
                 )
             ).bytecode(),
             Matchers.equalTo(
diff --git a/src/test/java/org/eolang/jeo/representation/directives/DirectivesValueTest.java b/src/test/java/org/eolang/jeo/representation/directives/DirectivesValueTest.java
index 47c3d6f94..d0fe9dfc9 100644
--- a/src/test/java/org/eolang/jeo/representation/directives/DirectivesValueTest.java
+++ b/src/test/java/org/eolang/jeo/representation/directives/DirectivesValueTest.java
@@ -47,16 +47,15 @@ final class DirectivesValueTest {
 
     @Test
     void convertsInteger() throws ImpossibleModificationException {
+        final String xml = new Xembler(new DirectivesValue("access", 42)).xml();
         MatcherAssert.assertThat(
-            "We expect that integer value is converted to the correct XMIR",
-            new Xembler(new DirectivesValue("access", 42)).xml(),
-            new SameXml(
-                String.join(
-                    "\n",
-                    "<o base='jeo.int' as='access'>",
-                    "  <o base='org.eolang.bytes'>00-00-00-00-00-00-00-2A</o>",
-                    "</o>"
-                )
+            String.format(
+                "We expect that integer value is converted to the correct XMIR, but got the incorrect one: %n%s%n",
+                xml
+            ),
+            xml,
+            XhtmlMatchers.hasXPath(
+                "./o[@base='jeo.int' and @as='access']/o[@base='org.eolang.number']/o[@base='org.eolang.bytes']/text()"
             )
         );
     }
@@ -233,7 +232,9 @@ static Stream<Arguments> numbers() {
             Arguments.of(1.0f, "jeo.float", same),
             Arguments.of(1.0d, "jeo.double", same),
             Arguments.of((short) 1, "jeo.short", same),
-            Arguments.of((byte) 1, "jeo.byte", same)
+            Arguments.of((byte) 1, "jeo.byte", same),
+            Arguments.of(100, "jeo.int", "40-59-00-00-00-00-00-00"),
+            Arguments.of(1057, "jeo.int", "40-90-84-00-00-00-00-00")
         );
     }
 }
diff --git a/src/test/java/org/eolang/jeo/representation/xmir/XmlValueTest.java b/src/test/java/org/eolang/jeo/representation/xmir/XmlValueTest.java
index a09dddef2..668fae7a9 100644
--- a/src/test/java/org/eolang/jeo/representation/xmir/XmlValueTest.java
+++ b/src/test/java/org/eolang/jeo/representation/xmir/XmlValueTest.java
@@ -45,9 +45,9 @@ final class XmlValueTest {
     @Test
     void parsesHexStringAsInteger() {
         final int expected = 1057;
-        final int actual = new XmlValue(
-            new NativeXmlNode("<o><o>00-00-00-00-00-00-04-21</o></o>")
-        ).integer();
+        final int actual = (int) new XmlValue(
+            new NativeXmlNode("<o base='jeo.int'><o>40-90-84-00-00-00-00-00</o></o>")
+        ).object();
         MatcherAssert.assertThat(
             String.format(
                 "Can't parse hex string as integer, or the result is wrong; expected %d, got %d",
@@ -62,10 +62,12 @@ void parsesHexStringAsInteger() {
     @ParameterizedTest
     @MethodSource("values")
     void decodesEncodesCorrectly(final Object origin) {
+        final String xml = new Xembler(new DirectivesValue(origin)).xmlQuietly();
+        System.out.println(xml);
         MatcherAssert.assertThat(
             "Decoding and encoding are not consistent",
             new XmlValue(
-                new NativeXmlNode(new Xembler(new DirectivesValue(origin)).xmlQuietly())
+                new NativeXmlNode(xml)
             ).object(),
             Matchers.equalTo(origin)
         );
@@ -90,7 +92,7 @@ void decodesUnicodeCharacters(final String unicode) throws ImpossibleModificatio
     }
 
     /**
-     * Arguments for {@link XmlValue#decodesEncodesCorrectly(Object, String)}.
+     * Arguments for {@link XmlValueTest#decodesEncodesCorrectly(Object)}.
      * @return Stream of arguments.
      */
     static Stream<Arguments> values() {