The following issues were found

src/test/java/com/alibaba/json/bvt/bug/Bug_for_vikingschow.java
2 issues
JUnit tests should include assert() or fail()
Design

Line: 9 

              import com.alibaba.json.bvtVO.OfferRankResultVO;

public class Bug_for_vikingschow extends TestCase {
	public void test_for_vikingschow() throws Exception {
		OfferRankResultVO vo = new OfferRankResultVO();
		String text = JSON.toJSONString(vo);
		JSON.parseObject(text, OfferRankResultVO.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: 9 

              import com.alibaba.json.bvtVO.OfferRankResultVO;

public class Bug_for_vikingschow extends TestCase {
	public void test_for_vikingschow() throws Exception {
		OfferRankResultVO vo = new OfferRankResultVO();
		String text = JSON.toJSONString(vo);
		JSON.parseObject(text, OfferRankResultVO.class);
	}
}

Reported by PMD.

src/test/java/com/alibaba/json/bvt/bug/Bug_for_wsky.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 Bug_for_wsky extends TestCase {
    
    public void test_writeMapNull() throws Exception {
        JSON.parseObject(JSON.toJSONString(new MethodReturn(), SerializerFeature.WriteMapNullValue), MethodReturn.class);
    }

    public static class MethodReturn {

Reported by PMD.

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

Line: 10 

              
public class Bug_for_wsky extends TestCase {
    
    public void test_writeMapNull() throws Exception {
        JSON.parseObject(JSON.toJSONString(new MethodReturn(), SerializerFeature.WriteMapNullValue), MethodReturn.class);
    }

    public static class MethodReturn {

Reported by PMD.

src/test/java/com/alibaba/json/bvt/basicType/BigInteger_BrowserCompatible.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 java.util.Map;

public class BigInteger_BrowserCompatible extends TestCase {
    public void test_for_issue() throws Exception {
        Map<String, Object> map = new LinkedHashMap<String, Object>();
        map.put("id1", 9223370018640066466L);
        map.put("id2", new BigInteger("9223370018640066466"));
        assertEquals("{\"id1\":\"9223370018640066466\",\"id2\":\"9223370018640066466\"}",
                JSON.toJSONString(map, SerializerFeature.BrowserCompatible)

Reported by PMD.

JUnit assertions should include a message
Design

Line: 16 

                      Map<String, Object> map = new LinkedHashMap<String, Object>();
        map.put("id1", 9223370018640066466L);
        map.put("id2", new BigInteger("9223370018640066466"));
        assertEquals("{\"id1\":\"9223370018640066466\",\"id2\":\"9223370018640066466\"}",
                JSON.toJSONString(map, SerializerFeature.BrowserCompatible)
        );
    }
}

Reported by PMD.

src/test/java/com/alibaba/fastjson/deserializer/issue2898/TestIssue2898.java
2 issues
System.out.println is used
Design

Line: 19 

                      ExtClassLoader classLoader = new ExtClassLoader();
        Class clazz = classLoader.loadClass("DataClassPropsGeneric");
        Object d = JSON.parseObject(s, clazz);
        System.out.println(d);
        Assert.assertNotNull(d);
    }

    public static class ExtClassLoader extends ClassLoader {

Reported by PMD.

Ensure that resources like this InputStream object are closed after use
Error

Line: 30 

              
            {
                byte[] bytes;
                InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream(
                    "kotlin/DataClassPropsGeneric.clazz");
                bytes = IOUtils.toByteArray(is);
                is.close();

                super.defineClass("DataClassPropsGeneric", bytes, 0, bytes.length);

Reported by PMD.

src/main/java/com/alibaba/fastjson/parser/JSONLexer.java
2 issues
This class has a bunch of public methods and attributes
Design

Line: 16 

               * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.fastjson.parser;

import java.math.BigDecimal;
import java.util.Collection;
import java.util.Locale;
import java.util.TimeZone;

Reported by PMD.

This class has too many methods, consider refactoring it.
Design

Line: 23 

              import java.util.Locale;
import java.util.TimeZone;

public interface JSONLexer {

    char EOI            = 0x1A;
    int  NOT_MATCH      = -1;
    int  NOT_MATCH_NAME = -2;
    int  UNKNOWN        = 0;

Reported by PMD.

src/test/java/com/alibaba/fastjson/deserializer/issue2711/PageRequest.java
2 issues
The class 'PageRequest' is suspected to be a Data Class (WOC=0.000%, NOPA=0, NOAM=6, WMC=6)
Design

Line: 5 

              
import com.alibaba.fastjson.annotation.JSONField;

public class PageRequest<T> {
    @JSONField(unwrapped = true)
    T data;
    int from = 0;
    int size = 10;

Reported by PMD.

Avoid using redundant field initializer for 'from'
Performance

Line: 8 

              public class PageRequest<T> {
    @JSONField(unwrapped = true)
    T data;
    int from = 0;
    int size = 10;

    public T getData() {
        return data;
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/AppendableFieldTest.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 AppendableFieldTest extends TestCase {

    public void test_codec_null() throws Exception {
        V0 v = new V0();

        SerializeConfig mapping = new SerializeConfig();
        mapping.setAsmEnable(false);

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: 22 

                      Assert.assertEquals("{\"value\":null}", text);
    }

    public void test_codec_null_1() throws Exception {
        V0 v = new V0();

        SerializeConfig mapping = new SerializeConfig();
        mapping.setAsmEnable(false);
        Assert.assertTrue(!mapping.isAsmEnable());

Reported by PMD.

src/test/java/com/alibaba/json/bvt/bug/bug2019/Bug20190729_01.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 Bug20190729_01 extends TestCase
{
    public void test_for_issue() throws Exception {
        JSONObject object = new JSONObject();
        object.put("bucketId", 123);

        JSON.toJavaObject(object, BucketInfo.class);
    }

Reported by PMD.

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

Line: 9 

              
public class Bug20190729_01 extends TestCase
{
    public void test_for_issue() throws Exception {
        JSONObject object = new JSONObject();
        object.put("bucketId", 123);

        JSON.toJavaObject(object, BucketInfo.class);
    }

Reported by PMD.

src/test/java/com/alibaba/json/bvt/bug/Bug_for_yaoming_1.java
2 issues
JUnit tests should include assert() or fail()
Design

Line: 10 

              

public class Bug_for_yaoming_1 extends TestCase {
    public void test_0 () throws Exception {
        JSON.parseObject("{}", AccessHttpConfigModel.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: 10 

              

public class Bug_for_yaoming_1 extends TestCase {
    public void test_0 () throws Exception {
        JSON.parseObject("{}", AccessHttpConfigModel.class);
    }
}

Reported by PMD.

src/test/java/com/alibaba/fastjson/deserializer/issue1463/TestIssue1463.java
2 issues
Found non-transient, non-static member. Please mark as transient or provide accessors.
Error

Line: 19 

               */
public class TestIssue1463 {

    private Person wenshao;

    @Before
    public void setUp() {
        wenshao = new Person("wenshao", 18);
    }

Reported by PMD.

A catch statement should never catch throwable since it includes errors.
Error

Line: 31 

                      String str = doubleDeserialization(wenshao);
        try {
            wenshao = JSON.parseObject(str, Person.class);
        } catch (Throwable ex) {
            Assert.assertEquals(ex.getCause() instanceof NullPointerException, false);
        }
    }

    private String doubleDeserialization(Person person) {

Reported by PMD.