DataUnit { public String getExecutionId() { if (mappedFromExecution == null) { return ownerExecution; } String iri = mappedFromExecution; int idStartIndex = iri.indexOf("executions/") + "executions/".length(); return iri.substring(idStartIndex); } DataUnit();  DataUnit(
            String ownerExecution, String name,
            String relativeDataPath, String mappedFromExecution,
            List<File> debugDirectories); void setOwnerExecution(String ownerExecution); String getName(); String getExecutionId(); boolean isMapped(); List<File> getDebugDirectories(); void updateDebugDirectories(File executionDirectory);  }
@Test public void getExecutionId() { DataUnit dataUnit = new DataUnit(); dataUnit.setMappedFromExecution("http: Assert.assertEquals("123", dataUnit.getExecutionId()); }