The following issues were found

src/test/java/com/alibaba/json/bvt/serializer/JSONSerializerDeprecatedTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 14 

              @SuppressWarnings("deprecation")
public class JSONSerializerDeprecatedTest extends TestCase {

    public void test_() throws Exception {
        JSONSerializer ser = new JSONSerializer(new SerializeConfig());
        
        ser.setDateFormat(new ISO8601DateFormat());
        Assert.assertEquals(null, ser.getDateFormatPattern());

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/IntegerSerializerTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 12 

              
public class IntegerSerializerTest extends TestCase {
    
    public void test_null() throws Exception {
        VO vo = new VO();
        
        Assert.assertEquals("{\"value\":null}", JSON.toJSONString(vo, SerializerFeature.WriteMapNullValue));
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/InetSocketAddressTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 13 

              
public class InetSocketAddressTest extends TestCase {

    public void test_timezone() throws Exception {
        InetSocketAddress address = new InetSocketAddress(InetAddress.getLocalHost(), 80);
        
        String text = JSON.toJSONString(address);

        InetSocketAddress address2 = JSON.parseObject(text,  InetSocketAddress.class);

Reported by PMD.

src/test/java/com/alibaba/json/bvt/parser/stream/JSONReader_string_1.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 12 

              import com.alibaba.fastjson.JSONReader;

public class JSONReader_string_1 extends TestCase {
    public void test_obj() throws Exception {
        JSONReader reader = new JSONReader(new StringReader("\"abc\""));

        Assert.assertEquals("abc", reader.readString());

        reader.close();

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/IgnoreNonFieldGetterTest2.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 12 

              
public class IgnoreNonFieldGetterTest2 extends TestCase {

    public void test_int() throws Exception {
        VO vo = new VO();
        vo.setId(123);
        
        String text = JSON.toJSONString(vo, SerializerFeature.IgnoreNonFieldGetter);
        Assert.assertEquals("{\"id\":123}", text);

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/IgnoreNonFieldGetterTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 12 

              
public class IgnoreNonFieldGetterTest extends TestCase {

    public void test_int() throws Exception {
        VO vo = new VO();
        vo.setId(123);
        
        String text = JSON.toJSONString(vo, SerializerFeature.IgnoreNonFieldGetter);
        Assert.assertEquals("{\"id\":123}", text);

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/FileTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 13 

              
public class FileTest extends TestCase {

    public void test_file() throws Exception {
        File file = new File("abc.txt");
        
        String text = JSON.toJSONString(file);
        
        Assert.assertEquals(JSON.toJSONString(file.getPath()), text);

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/ErrorTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 17 

              
public class ErrorTest extends TestCase {

    public void test_error() throws Exception {
        SerializeConfig config = new SerializeConfig();
        config.put(A.class, new ObjectSerializer() {

            public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features)
                                                                                                         throws IOException {

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/DoubleTest_custom2.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 17 

              
public class DoubleTest_custom2 extends TestCase {

    @SuppressWarnings({ "rawtypes", "unchecked" })
    public void test_0() throws Exception {
        Map values = new HashMap();
        Double v = 9.00;
        values.put("double", v);

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/DoubleArraySerializerTest.java
1 issues
JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 11 

              
public class DoubleArraySerializerTest extends TestCase {

    public void test_0() {
        Assert.assertEquals("[]", JSON.toJSONString(new double[0]));
        Assert.assertEquals("[null]", JSON.toJSONString(new double[] { Double.NaN }));
        Assert.assertEquals("[1.0,2.0]", JSON.toJSONString(new double[] { 1, 2 }));
        Assert.assertEquals("[1.0,2.0,3.0]", JSON.toJSONString(new double[] { 1, 2, 3 }));
        Assert.assertEquals("[1.0,2.0,3.0,null,null]", JSON.toJSONString(new double[] { 1, 2, 3, Double.NaN, Double.NaN }));

Reported by PMD.