⚡️ Speed up method BoolIntValue.equals by 38%

[codeflash-ai]

📄 38% (0.38x) speedup for BoolIntValue.equals in client/src/com/aerospike/client/Value.java

⏱️ Runtime : 4.13 microseconds → 3.00 microseconds (best of 5 runs)

📝 Explanation and details

Optimization Explanation:
The original equals method performs unnecessary operations: it calls getClass() on both objects and uses equals() for class comparison. This creates temporary Class objects and performs string-based equality checks. The optimized version uses instanceof which is faster (single bytecode instruction) and more idiomatic for type checking. Additionally, it eliminates the redundant null check since instanceof already handles null cases by returning false.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	🔘 None Found
🌀 Generated Regression Tests	✅ 18 Passed
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	🔘 None Found
📊 Tests Coverage	No coverage data found for equals

🌀 Click to see Generated Regression Tests

package com.aerospike.client;

import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;

import com.aerospike.client.Value;

/**
 * Unit tests for com.aerospike.client.Value.BoolIntValue.equals(...)
 *
 * These tests focus on the equals implementation in the nested BoolIntValue class:
 *   public boolean equals(Object other) {
 *     return (other != null &&
 *         this.getClass().equals(other.getClass()) &&
 *         this.value == ((BoolIntValue)other).value);
 *   }
 *
 * Tests cover typical cases, edge cases (null, different types), and a simple
 * large-scale loop to assert behavior under repeated comparisons.
 */
public class ValueTest {
    private Value instanceTrue;
    private Value instanceFalse;

    @Before
    public void setUp() {
        // Use the concrete nested BoolIntValue to obtain Value instances for testing.
        instanceTrue = new Value.BoolIntValue(true);
        instanceFalse = new Value.BoolIntValue(false);
    }

    @Test
    public void testEquals_SameInstance_ReturnsTrue() {
        // Reflexive property: object must equal itself.
        assertTrue(instanceTrue.equals(instanceTrue));
    }

    @Test
    public void testEquals_SameClassSameValue_ReturnsTrue() {
        // Two distinct instances of the same concrete class with same boolean should be equal.
        Value anotherTrue = new Value.BoolIntValue(true);
        assertTrue(instanceTrue.equals(anotherTrue));
    }

    @Test
    public void testEquals_SameClassDifferentValue_ReturnsFalse() {
        // Same class but different internal boolean value -> not equal.
        assertFalse(instanceTrue.equals(instanceFalse));
    }

    @Test
    public void testEquals_Null_ReturnsFalse() {
        // Should return false when compared to null.
        assertFalse(instanceTrue.equals(null));
    }

    @Test
    public void testEquals_DifferentType_ReturnsFalse() {
        // Comparing to a different runtime type (Boolean) must return false.
        assertFalse(instanceTrue.equals(Boolean.TRUE));
    }

    @Test
    public void testEquals_Symmetric_ReturnsTrue() {
        // Symmetry: if a.equals(b) then b.equals(a)
        Value a = new Value.BoolIntValue(true);
        Value b = new Value.BoolIntValue(true);
        assertTrue(a.equals(b));
        assertTrue(b.equals(a));
    }

    @Test
    public void testEquals_Transitive_ReturnsTrue() {
        // Transitivity: if a.equals(b) and b.equals(c) then a.equals(c)
        Value a = new Value.BoolIntValue(true);
        Value b = new Value.BoolIntValue(true);
        Value c = new Value.BoolIntValue(true);

        assertTrue(a.equals(b));
        assertTrue(b.equals(c));
        assertTrue(a.equals(c));
    }

    @Test
    public void testEquals_DifferentConcreteTypes_ReturnsFalse() {
        // Even if two Values may conceptually represent booleans, equality requires same class.
        // Use a non-Value object to ensure false; this documents behavior for differing classes.
        Value boolInt = new Value.BoolIntValue(true);
        Object plainBoolean = Boolean.TRUE;
        assertFalse(boolInt.equals(plainBoolean));
    }

    @Test
    public void testEquals_RepeatedComparisons_NoExceptionsAndConsistentResults() {
        // Large-scale repeated comparisons to ensure stability and consistent results.
        // This is not a performance benchmark, but verifies behavior under repeated use.
        int iterations = 10000;
        int trueCount = 0;
        for (int i = 0; i < iterations; i++) {
            Value v = new Value.BoolIntValue(true);
            if (instanceTrue.equals(v)) {
                trueCount++;
            }
        }
        // Every comparison against a same-class same-value instance should be true.
        assertEquals(iterations, trueCount);
    }
}

To edit these changes git checkout codeflash/optimize-BoolIntValue.equals-ml8rw97g and push.