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So I've been working on a simple automation framework that uses excel as data pool. However, while updating the version of my pom.xlm, I've encountered this error in my console.

Cleaning up unclosed ZipFile for archive C:<workspace repo>\ExcelFile.xlsx

I have no idea what went wrong. This error does not stop the execution and my tests run smoothly. How can I possibly solve this problem. I can't find anything related to this.

Here are the dependencies:

<dependencies>
    <dependency>
        <groupId>org.apache.xmlbeans</groupId>
        <artifactId>xmlbeans</artifactId>
        <version>3.1.0</version>
    </dependency>
    <dependency>
        <groupId>xml-apis</groupId>
        <artifactId>xml-apis</artifactId>
        <version>1.4.01</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml-schemas</artifactId>
        <version>4.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi</artifactId>
        <version>4.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>4.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-scratchpad</artifactId>
        <version>4.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-contrib</artifactId>
        <version>3.7-beta3</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.9</version>
    </dependency>
    <dependency>
        <groupId>org.dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>2.1.0</version>
    </dependency>
    <dependency>
        <groupId>net.sourceforge.jexcelapi</groupId>
        <artifactId>jxl</artifactId>
        <version>2.6.3</version>
    </dependency>
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>mail</artifactId>
        <version>1.4</version>
    </dependency>
    <dependency>
        <groupId>com.relevantcodes</groupId>
        <artifactId>extentreports</artifactId>
        <version>2.41.2</version>
    </dependency>
    <dependency>
        <groupId>com.aventstack</groupId>
        <artifactId>extentreports</artifactId>
        <version>3.1.5</version>
    </dependency>
    <dependency>
        <groupId>org.apache.geronimo.specs</groupId>
        <artifactId>geronimo-stax-api_1.0_spec</artifactId>
        <version>1.0.1</version>
    </dependency>
    <dependency>
        <groupId>org.testng</groupId>
        <artifactId>testng</artifactId>
        <version>7.0.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.google.inject</groupId>
        <artifactId>guice</artifactId>
        <version>4.0-beta</version>
    </dependency>
    <dependency>
        <groupId>velocity</groupId>
        <artifactId>velocity-dep</artifactId>
        <version>1.4</version>
    </dependency>
    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-java</artifactId>
        <version>2.53.0</version>
    </dependency>
    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-api</artifactId>
        <version>2.53.0</version>
    </dependency>
    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>18.0</version>
    </dependency>
    <dependency>
        <groupId>org.uncommons</groupId>
        <artifactId>reportng</artifactId>
        <version>1.1.4</version>
    </dependency>
    <dependency>
        <groupId>ru.yandex.qatools.ashot</groupId>
        <artifactId>ashot</artifactId>
        <version>1.5.4</version>
    </dependency>
    <dependency>
        <groupId>io.cucumber</groupId>
        <artifactId>cucumber-java</artifactId>
        <version>4.3.1</version>
    </dependency>
    <dependency>
        <groupId>io.cucumber</groupId>
        <artifactId>cucumber-jvm-deps</artifactId>
        <version>1.0.6</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.aventstack</groupId>
        <artifactId>extentreports-testng-adapter</artifactId>
        <version>1.0.3</version>
    </dependency>
    <dependency>
        <groupId>io.cucumber</groupId>
        <artifactId>cucumber-testng</artifactId>
        <version>4.3.1</version>
        <scope>compile</scope>
        <exclusions>
            <exclusion>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
</dependencies>

Here's the method I deal with the excel:

public static String get(String sheetName, String scenario, String columnName) throws IOException {

        org.apache.poi.ss.usermodel.Workbook tempWB;
        int k=0;
        try {

            if(workbookPath.contains(".xlsx") || workbookPath.contains(".xlsm")){
                tempWB = new XSSFWorkbook(workbookPath);
            } else{             
                InputStream inp = new FileInputStream(workbookPath);
                tempWB = (org.apache.poi.ss.usermodel.Workbook) new HSSFWorkbook(new POIFSFileSystem(inp));                 
            }

            org.apache.poi.ss.usermodel.Sheet sheet = tempWB.getSheet(sheetName);

            int rows = sheet.getPhysicalNumberOfRows();

            for(int i=0;i<rows;i++){
                //Getting the number of defined cells in the row
                int cols = sheet.getRow(0).getPhysicalNumberOfCells();

                for (int j = 0; j < cols; j++) { 
                    if(sheet.getRow(i).getCell(j,Row.MissingCellPolicy.CREATE_NULL_AS_BLANK).toString().replace(".0", "").equalsIgnoreCase(columnName)){ 
                        k=j;
                    }

                    map.put(sheet.getRow(i).getCell(0,Row.MissingCellPolicy.CREATE_NULL_AS_BLANK).toString().replace(".0", ""),
                            sheet.getRow(i).getCell(k,Row.MissingCellPolicy.CREATE_NULL_AS_BLANK).toString().replace(".0", ""));
                }
            } 
        } catch (Exception e){
            e.printStackTrace(); 
        } 

        return map.get(scenario);
    }

Answers

I added tempWB.close(); and the error disappears! :)