public class JavaUtils {
 public static Date getEpochStart() {
 return Date.from(Instant.EPOCH);
 }
 public static File getSomeFile() {
 return new File("file.txt");
 }
 public static BigInteger getSomeBigInteger() {
 return BigInteger.ZERO;
 }
}

public final class JavaUtilsTest {
 ///region Test suites for executable org.example.JavaUtils.getEpochStart
 ///region SYMBOLIC EXECUTION: SUCCESSFUL EXECUTIONS for method getEpochStart()
 /**
 * @utbot.classUnderTest {@link JavaUtils}
 * @utbot.methodUnderTest {@link JavaUtils#getEpochStart()}
 * @utbot.invokes {@link Date#from(java.time.Instant)}
 */
 @Test
 @DisplayName("getEpochStart: -> DateFrom")
 public void testGetEpochStart_DateFrom() {
 Date actual = JavaUtils.getEpochStart();
 Date expected = new Date();
 // java.util.Date has overridden equals method
 assertEquals(expected, actual);
 }
 ///endregion
 ///endregion
 ///region Test suites for executable org.example.JavaUtils.getSomeBigInteger
 ///region SYMBOLIC EXECUTION: SUCCESSFUL EXECUTIONS for method getSomeBigInteger()
 /**
 * @utbot.classUnderTest {@link JavaUtils}
 * @utbot.methodUnderTest {@link JavaUtils#getSomeBigInteger()}
 * @utbot.returnsFrom {@code return BigInteger.ZERO;}
 */
 @Test
 @DisplayName("getSomeBigInteger: -> return BigInteger.ZERO")
 public void testGetSomeBigInteger_ReturnBigIntegerZERO() throws Exception {
 BigInteger actual = JavaUtils.getSomeBigInteger();
 BigInteger expected = ((BigInteger) createInstance("java.math.BigInteger"));
 // java.math.BigInteger has overridden equals method
 assertEquals(expected, actual);
 }
 ///endregion
 ///endregion
 ///region Test suites for executable org.example.JavaUtils.getSomeFile
 ///region OTHER: SUCCESSFUL EXECUTIONS for method getSomeFile()
 @Test
 public void testGetSomeFile1() throws Exception {
 File actual = JavaUtils.getSomeFile();
 File expected = ((File) createInstance("java.io.File"));
 // java.io.File has overridden equals method
 assertEquals(expected, actual);
 }
 ///endregion
 ///endregion
}

org.opentest4j.AssertionFailedError: expected: <Thu Aug 31 15:45:57 MSK 2023> but was: <Thu Jan 01 03:00:00 MSK 1970>
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
	at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
	at org.junit.jupiter.api.AssertEquals.failNotEqual(AssertEquals.java:197)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:182)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:177)
	at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:1142)
	at org.example.JavaUtilsTest.testGetEpochStart_DateFrom(JavaUtilsTest.java:31)
java.lang.NullPointerException
	at java.base/java.io.WinNTFileSystem.compare(WinNTFileSystem.java:698)
	at java.base/java.io.File.compareTo(File.java:2198)
	at java.base/java.io.File.equals(File.java:2217)
	at org.junit.jupiter.api.AssertionUtils.objectsAreEqual(AssertionUtils.java:110)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:181)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:177)
	at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:1142)
	at org.example.JavaUtilsTest.testGetSomeFile1(JavaUtilsTest.java:71)
java.lang.NullPointerException
	at java.base/java.math.BigInteger.equals(BigInteger.java:3865)
	at org.junit.jupiter.api.AssertionUtils.objectsAreEqual(AssertionUtils.java:110)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:181)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:177)
	at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:1142)
	at org.example.JavaUtilsTest.testGetSomeBigInteger_ReturnBigIntegerZERO(JavaUtilsTest.java:54)