The following issues were found

src/test/java/com/alibaba/json/bvt/parser/deser/TimeDeserializerTest3.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: 12 

              import junit.framework.TestCase;

public class TimeDeserializerTest3 extends TestCase {
    public void test_time() throws Exception {
        Assert.assertEquals(Time.valueOf("17:00:00"), JSON.parseObject("\"17:00:00\"", Time.class));
    }
    
    public void test_time_null() throws Exception {
        Assert.assertEquals(null, JSON.parseObject("\"\"", Time.class));

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: 16 

                      Assert.assertEquals(Time.valueOf("17:00:00"), JSON.parseObject("\"17:00:00\"", Time.class));
    }
    
    public void test_time_null() throws Exception {
        Assert.assertEquals(null, JSON.parseObject("\"\"", Time.class));
    }

    public static class VO {

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/ShortArraySerializerTest.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: 12 

              
public class ShortArraySerializerTest extends TestCase {

    public void test_0() {
        Assert.assertEquals("[]", JSON.toJSONString(new short[0]));
        Assert.assertEquals("[1,2]", JSON.toJSONString(new short[] { 1, 2 }));
        Assert.assertEquals("[1,2,3]", JSON.toJSONString(new short[] { 1, 2, 3 }));
    }

Reported by PMD.

Avoid unused imports such as 'com.alibaba.fastjson.serializer.SerializeWriter'
Design

Line: 8 

              import org.junit.Assert;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializeWriter;

public class ShortArraySerializerTest extends TestCase {

    public void test_0() {
        Assert.assertEquals("[]", JSON.toJSONString(new short[0]));

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/SimpleDataFormatSerializerTest.java
2 issues
JUnit 4 tests that set up tests should use the @Before annotation, JUnit5 tests should use @BeforeEach or @BeforeAll
Design

Line: 22 

                      mapping.put(Date.class, new SimpleDateFormatSerializer("yyyy-MM-dd"));
    }
    
    protected void setUp() throws Exception {
        JSON.defaultTimeZone = TimeZone.getTimeZone("Asia/Shanghai");
        JSON.defaultLocale = Locale.CHINA;
    }
    
    public void test_0() throws Exception {

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: 27 

                      JSON.defaultLocale = Locale.CHINA;
    }
    
    public void test_0() throws Exception {
        Date date = new Date();
        String text = JSON.toJSONString(date, mapping);
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd", JSON.defaultLocale);
        format.setTimeZone(JSON.defaultTimeZone);
        SimpleDateFormat format2 = new SimpleDateFormat("yyyy-MM-dd", JSON.defaultLocale);

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/TestInnerClass2.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: 11 

              
public class TestInnerClass2 extends TestCase {

    public void test_inner() throws Exception {
        VO vo = new VO(234);
        String text = JSON.toJSONString(vo);
        Assert.assertEquals("{\"value\":234}", text);

        Exception error = null;

Reported by PMD.

Found 'DD'-anomaly for variable 'error' (lines '16'-'20').
Error

Line: 16 

                      String text = JSON.toJSONString(vo);
        Assert.assertEquals("{\"value\":234}", text);

        Exception error = null;
        try {
            JSON.parseObject(text, VO.class);
        } catch (JSONException ex) {
            error = ex;
        }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/TestSpecial6.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: 9 

              
public class TestSpecial6 extends TestCase {

    public void test_1() throws Exception {

        VO vo = new VO();
        vo.setValue("马䶮");

        String text = JSON.toJSONString(vo);

Reported by PMD.

JUnit assertions should include a message
Design

Line: 18 

                      VO vo2 = JSON.parseObject(text, VO.class);
        Assert.assertEquals(vo.value, vo2.value);

        assertEquals("{\"value\":\"马䶮\"}", text);
    }

    public static class VO {

        private String value;

Reported by PMD.

src/test/java/com/alibaba/json/bvt/parser/deser/SmartMatchTest_snake2.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: 12 

              
public class SmartMatchTest_snake2 extends TestCase {
    
    public void test_0() throws Exception {
        String text = "{\"_id\":1001}";

        VO vo = JSON.parseObject(text, VO.class);
        Assert.assertEquals(1001, vo.id);
    }

Reported by PMD.

Found non-transient, non-static member. Please mark as transient or provide accessors.
Error

Line: 20 

                  }

    public static class VO {
        public int id;
    }
}

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/WriteSlashAsSpecialTest.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: 13 

              import junit.framework.TestCase;

public class WriteSlashAsSpecialTest extends TestCase {
	public void test_0 () throws Exception {
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("value", "/");
		String result = JSON.toJSONString(map);
		Assert.assertEquals("{\"value\":\"/\"}", result);
	}

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: 20 

              		Assert.assertEquals("{\"value\":\"/\"}", result);
	}
	
	public void test_1 () throws Exception {
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("value", "/");
		String result = JSON.toJSONString(map, SerializerFeature.WriteSlashAsSpecial);
		Assert.assertEquals("{\"value\":\"\\/\"}", result);
	}

Reported by PMD.

src/test/java/com/alibaba/json/bvt/parser/deser/SmartMatchTest_snake.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: 12 

              
public class SmartMatchTest_snake extends TestCase {
    
    public void test_0() throws Exception {
        String text = "{\"person_id\":1001}";

        VO vo = JSON.parseObject(text, VO.class);
        Assert.assertEquals(1001, vo.personId);
    }

Reported by PMD.

Found non-transient, non-static member. Please mark as transient or provide accessors.
Error

Line: 20 

                  }

    public static class VO {
        public int personId;
    }
}

Reported by PMD.

src/test/java/com/alibaba/json/bvt/serializer/date/DateTest3.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: 13 

              
public class DateTest3 extends TestCase {

    public void test_date() throws Exception {
        String text = "{\"gmtCreate\":\"2014-08-21T09:51:36.25+07:00\"}";
        
        Date date = JSON.parseObject(text, VO.class).getGmtCreate();
        Assert.assertNotNull(date);
    }

Reported by PMD.

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

Line: 16 

                  public void test_date() throws Exception {
        String text = "{\"gmtCreate\":\"2014-08-21T09:51:36.25+07:00\"}";
        
        Date date = JSON.parseObject(text, VO.class).getGmtCreate();
        Assert.assertNotNull(date);
    }

    public static class VO {

Reported by PMD.

src/test/java/com/alibaba/json/bvt/parser/deser/SmartMatchTest_boolean_is.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: 12 

              
public class SmartMatchTest_boolean_is extends TestCase {
    
    public void test_0() throws Exception {
        String text = "{\"isVisible\":true}";

        VO vo = JSON.parseObject(text, VO.class);
        Assert.assertEquals(true, vo.isVisible());
    }

Reported by PMD.

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

Line: 16 

                      String text = "{\"isVisible\":true}";

        VO vo = JSON.parseObject(text, VO.class);
        Assert.assertEquals(true, vo.isVisible());
    }

    public static class VO {

        private boolean visible;

Reported by PMD.