The following issues were found

src/test/java/com/alibaba/json/bvt/parser/deser/asm/TestASM_Byte_0.java
2 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: 10 

              
public class TestASM_Byte_0 extends TestCase {

    public void test_asm() throws Exception {
        V0 v = new V0();
        String text = JSON.toJSONString(v);
        V0 v1 = JSON.parseObject(text, V0.class);

        Assert.assertEquals(v.getI(), v1.getI());

Reported by PMD.

Potential violation of Law of Demeter (object not created locally)
Design

Line: 15 

                      String text = JSON.toJSONString(v);
        V0 v1 = JSON.parseObject(text, V0.class);

        Assert.assertEquals(v.getI(), v1.getI());
    }

    public static class V0 {

        private Byte i = 12;

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/DoubleTest_custom.java
2 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: 15 

              
public class DoubleTest_custom extends TestCase {

    public void test_0() throws Exception {
        SerializeConfig config = new SerializeConfig();
        config.put(Double.class, new DoubleSerializer(new DecimalFormat("###.##")));
        Assert.assertEquals("1.12", JSON.toJSONString(1.123456789D, config));
    }

Reported by PMD.

JUnit 4 tests that execute tests should use the @Test annotation, JUnit 5 tests should use @Test, @RepeatedTest, @TestFactory, @TestTemplate or @ParameterizedTest
Design

Line: 21 

                      Assert.assertEquals("1.12", JSON.toJSONString(1.123456789D, config));
    }
    
    public void test_1() throws Exception {
        SerializeConfig config = new SerializeConfig();
        config.put(Double.class, new DoubleSerializer("###.###"));
        Assert.assertEquals("1.123", JSON.toJSONString(1.123456789D, config));
    }
}

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/DupSetterTest2.java
2 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: 19 

              
public class DupSetterTest2 extends TestCase {

    public void testEnum() {
        VO enumTest = new VO();
        enumTest.setStatus(3);
        String json = JSONObject.toJSONString(enumTest);
        JSONObject.parseObject(json, VO.class);
    }

Reported by PMD.

JUnit tests should include assert() or fail()
Design

Line: 19 

              
public class DupSetterTest2 extends TestCase {

    public void testEnum() {
        VO enumTest = new VO();
        enumTest.setStatus(3);
        String json = JSONObject.toJSONString(enumTest);
        JSONObject.parseObject(json, VO.class);
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/DupSetterTest4.java
2 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: 20 

              
public class DupSetterTest4 extends TestCase {

    public void testDup() {
        V1 vo = new V1();
        vo.status = 3;
        String json = JSONObject.toJSONString(vo);
        JSONObject.parseObject(json, V1.class);
    }

Reported by PMD.

JUnit tests should include assert() or fail()
Design

Line: 20 

              
public class DupSetterTest4 extends TestCase {

    public void testDup() {
        V1 vo = new V1();
        vo.status = 3;
        String json = JSONObject.toJSONString(vo);
        JSONObject.parseObject(json, V1.class);
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/DupSetterTest5.java
2 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: 20 

              
public class DupSetterTest5 extends TestCase {

    public void testDup() {
        V1 vo = new V1();
        vo.status = 3;
        String json = JSONObject.toJSONString(vo);
        JSONObject.parseObject(json, V1.class);
    }

Reported by PMD.

JUnit tests should include assert() or fail()
Design

Line: 20 

              
public class DupSetterTest5 extends TestCase {

    public void testDup() {
        V1 vo = new V1();
        vo.status = 3;
        String json = JSONObject.toJSONString(vo);
        JSONObject.parseObject(json, V1.class);
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/parser/deser/arraymapping/ArrayMappingErrorTest3.java
2 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 

              
public class ArrayMappingErrorTest3 extends TestCase {

    public void test_for_error() throws Exception {
        Exception error = null;
        try {
            JSON.parseObject("[1001,{}}", Model.class, Feature.SupportArrayToBean);
        } catch (JSONException ex) {
            error = ex;

Reported by PMD.

Found 'DD'-anomaly for variable 'error' (lines '15'-'19').
Error

Line: 15 

              public class ArrayMappingErrorTest3 extends TestCase {

    public void test_for_error() throws Exception {
        Exception error = null;
        try {
            JSON.parseObject("[1001,{}}", Model.class, Feature.SupportArrayToBean);
        } catch (JSONException ex) {
            error = ex;
        }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/FontSerializerTest.java
2 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 FontSerializerTest extends TestCase {
    
    public void test_null() throws Exception {
        JSONSerializer serializer = new JSONSerializer();
        Assert.assertEquals(AwtCodec.class, serializer.getObjectWriter(Font.class).getClass());
        
        VO vo = new VO();

Reported by PMD.

Potential violation of Law of Demeter (method chain calls)
Design

Line: 19 

                  
    public void test_null() throws Exception {
        JSONSerializer serializer = new JSONSerializer();
        Assert.assertEquals(AwtCodec.class, serializer.getObjectWriter(Font.class).getClass());
        
        VO vo = new VO();
        
        Assert.assertEquals("{\"value\":null}", JSON.toJSONString(vo, SerializerFeature.WriteMapNullValue));
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/InterfaceTest.java
2 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: 10 

              import com.alibaba.fastjson.annotation.JSONField;

public class InterfaceTest extends TestCase {
	public void test_interface() throws Exception {
		A a = new A();
		a.setId(123);
		a.setName("xasdf");
		
		String text = JSON.toJSONString(a);

Reported by PMD.

The class 'A' is suspected to be a Data Class (WOC=0.000%, NOPA=0, NOAM=4, WMC=4)
Design

Line: 19 

              		Assert.assertEquals("{\"ID\":123,\"Name\":\"xasdf\"}", text);
	}
	
	public static class A implements IA, IB {
		private int id;
		private String name;
		public int getId() {
			return id;
		}

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/JSONFieldTest.java
2 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: 10 

              import com.alibaba.fastjson.annotation.JSONField;

public class JSONFieldTest extends TestCase {
	public void test_jsonField() throws Exception {
		VO vo = new VO();
		
		vo.setId(123);
		vo.setName("xx");

Reported by PMD.

The class 'VO' is suspected to be a Data Class (WOC=0.000%, NOPA=0, NOAM=4, WMC=4)
Design

Line: 20 

              		Assert.assertEquals("{\"id\":123}", text);
	}

	public static class VO {
		private int id;
		
		@JSONField(serialize=false)
		private String name;

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/JSONFieldTest2.java
2 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: 10 

              import com.alibaba.fastjson.annotation.JSONField;

public class JSONFieldTest2 extends TestCase {
	public void test_jsonField() throws Exception {
		VO vo = new VO();

		vo.setId(123);
		vo.setFlag(true);

Reported by PMD.

The class 'VO' is suspected to be a Data Class (WOC=0.000%, NOPA=0, NOAM=4, WMC=4)
Design

Line: 20 

              		Assert.assertEquals("{\"id\":123}", text);
	}

	public static class VO {
		private int id;

		@JSONField(serialize = false)
		private boolean flag;

Reported by PMD.