#1171

Committed 06 Sep 2025 02:10PM UTC coverage: 2.891%. Remained the same

Build # #1171

Build Type

push

Committed by

Commit Message

[PMD issues]Fix PMD issues: BigIntegerInstantiation

Run Details

0 of 6 new or added lines in 1 file covered. (0.0%)

248 of 8579 relevant lines covered (2.89%)

0.03 hits per line

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/src/main/java/edu/jiangxin/apktoolbox/convert/protobuf/unsupervised/VarintUtils.java

package edu.jiangxin.apktoolbox.convert.protobuf.unsupervised;

import java.math.BigInteger;
import java.util.HashMap;
import java.util.Map;

public class VarintUtils {

    /**
     * 解码为有符号类型
     *
     * @param bigInteger
     * @return
     */
    protected static BigInteger interpretAsSignedType(BigInteger bigInteger){
        BigInteger i = bigInteger.and(BigInteger.ONE);
        if (i.equals(BigInteger.ZERO)) {
            return bigInteger.divide(BigInteger.TWO);
        }
        return new BigInteger("-1").multiply(bigInteger.add(BigInteger.ONE).divide(BigInteger.TWO));
    }


    /**
     * 解码可变整数
     *
     * @param buffer
     * @param offset
     * @return
     */
    protected static Map<String, Object> decodeVarint(byte[] buffer, int offset) {
        BigInteger res = BigInteger.ZERO;
        int shift = 0;
        byte bytes;

        int count = 0;
        do {
            if (offset >= buffer.length) {
                throw new RuntimeException("Index out of bound decoding varint");
            }
            count++;
            bytes = buffer[offset++];

            BigInteger multiplier =  BigInteger.TWO.pow(shift);
            BigInteger thisByteValue = new BigInteger(Long.toString(bytes & 0x7f)).multiply(multiplier);
            shift += 7;
            res = res.add(thisByteValue);
        } while ((bytes & 0xff) >= 128 && count < 8);

        Map<String, Object> result = new HashMap<>(2);
        result.put("value", res);
        result.put("length", shift / 7);
        return result;
    }

}

1	package edu.jiangxin.apktoolbox.convert.protobuf.unsupervised;
2
3	import java.math.BigInteger;
4	import java.util.HashMap;
5	import java.util.Map;
6
7	public class VarintUtils {	×
8
9	/**
10	* 解码为有符号类型
11	*
12	* @param bigInteger
13	* @return
14	*/
15	protected static BigInteger interpretAsSignedType(BigInteger bigInteger){
NEW 16	BigInteger i = bigInteger.and(BigInteger.ONE);	×
NEW 17	if (i.equals(BigInteger.ZERO)) {	×
NEW 18	return bigInteger.divide(BigInteger.TWO);	×
19	}
NEW 20	return new BigInteger("-1").multiply(bigInteger.add(BigInteger.ONE).divide(BigInteger.TWO));	×
21	}
22
23
24	/**
25	* 解码可变整数
26	*
27	* @param buffer
28	* @param offset
29	* @return
30	*/
31	protected static Map<String, Object> decodeVarint(byte[] buffer, int offset) {
NEW 32	BigInteger res = BigInteger.ZERO;	×
33	int shift = 0;	×
34	byte bytes;
35
36	int count = 0;	×
37	do {
38	if (offset >= buffer.length) {	×
39	throw new RuntimeException("Index out of bound decoding varint");	×
40	}
41	count++;	×
42	bytes = buffer[offset++];	×
43
NEW 44	BigInteger multiplier = BigInteger.TWO.pow(shift);	×
45	BigInteger thisByteValue = new BigInteger(Long.toString(bytes & 0x7f)).multiply(multiplier);	×
46	shift += 7;	×
47	res = res.add(thisByteValue);	×
48	} while ((bytes & 0xff) >= 128 && count < 8);	×
49
50	Map<String, Object> result = new HashMap<>(2);	×
51	result.put("value", res);	×
52	result.put("length", shift / 7);	×
53	return result;	×
54	}
55
56	}

jiangxincode / ApkToolBoxGUI / #1171

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