java操作Jacoco合并dump文件

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import org.apache.maven.plugin.MojoExecutionException; import org.jacoco.core.tools.ExecFileLoader;   import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List;   public class MergeDump {       private final String path ;     private final File destFile ;       public MergeDump(String path){         this.path = path;         this.destFile = new File(path + "/jacoco.exec");     }       private List<File> fileSets(String dir){         System.out.println(dir);         List<File> fileSetList = new ArrayList<File>();         File path = new File(dir);         if ( ! path.exists() ){             System.out.println("No path name is :" + dir);             return null;         }         File[] files = path.listFiles();         try {             if (files == null || files.length == 0) {                 return null;             }         } catch (NullPointerException npe) {             npe.printStackTrace();         }         for (File file : files) {             if (file.getName().contains(".exec")) {                 System.out.println("文件:" + file.getAbsolutePath());                 fileSetList.add(file);             } else {                 System.out.println("非exec文件:" + file.getAbsolutePath());             }         }         return fileSetList;     }       public void executeMerge() throws MojoExecutionException {           final ExecFileLoader loader = new ExecFileLoader();         load(loader);         save(loader);         // 执行完成后，删除非必须的dump文件         for (final File fileSet : fileSets(this.path)) {             if ( ! fileSet.getName().equals("jacoco.exec") ) {                 fileSet.delete();             }         }     }       /**      * 加载dump文件      * @param loader      * @throws MojoExecutionException      */     public void load(final ExecFileLoader loader) throws MojoExecutionException {         for (final File fileSet : fileSets(this.path)) {             System.out.println(fileSet.getAbsoluteFile());             final File inputFile = new File(this.path, fileSet.getName());             if (inputFile.isDirectory()) {                 continue;             }             try {                 System.out.println("Loading execution data file " + inputFile.getAbsolutePath());                 loader.load(inputFile);                 System.out.println(loader.getExecutionDataStore().getContents());             } catch (final IOException e) {                 throw new MojoExecutionException("Unable to read "                         + inputFile.getAbsolutePath(), e);             }         }     }       /**      * 执行合并文件      * @param loader      * @throws MojoExecutionException      */     public void save(final ExecFileLoader loader) throws MojoExecutionException {         if (loader.getExecutionDataStore().getContents().isEmpty()) {             System.out.println("Skipping JaCoCo merge execution due to missing execution data files");             return;         }         System.out.println("Writing merged execution data to " + this.destFile.getAbsolutePath());         try {             loader.save(this.destFile, false);         } catch (final IOException e) {             throw new MojoExecutionException("Unable to write merged file "                     + this.destFile.getAbsolutePath(), e);         }     } }

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1 2	参考地址： https://www.cnblogs.com/wozijisun/p/10442124.html