Exception e = new Exception();
        problem = new DefaultProblem(null, null, null, -1, -1, e);
        assertSame(e, problem.getException());
    }

    @Test
    void testGetSource() {
        DefaultProblem problem = new DefaultProblem(null, null, null, -1, -1, null);
        assertEquals("", problem.getSource());

        problem = new DefaultProblem(null, null, "", -1, -1, null);

            plugins = new LinkedHashSet<>();

            plugins.add(newPlugin("maven-compiler-plugin", "compile", "testCompile"));
            plugins.add(newPlugin("maven-resources-plugin", "resources", "testResources"));
            plugins.add(newPlugin("maven-surefire-plugin", "test"));
            plugins.add(newPlugin("maven-jar-plugin", "jar"));
            plugins.add(newPlugin("maven-install-plugin", "install"));

                                                newPlugin("maven-compiler-plugin", "compile", "testCompile"),
                                                newPlugin("maven-resources-plugin", "resources", "testResources"),
                                                newPlugin("maven-surefire-plugin", "test"),
                                                newPlugin("maven-jar-plugin", "jar"),

        assertNotNull(map.get(FieldNames.LANGUAGES));
        assertNotNull(map.get(FieldNames.KINDS));
        assertNotNull(map.get(FieldNames.TIMESTAMP));
    }

    @Test
    public void testGetSource() {
        // Test getSource method
        String[] text = { "source", "test" };
        String[][] readings = { { "source" }, { "test" } };
        String[] fields = { "field1" };

          </association>
          <annotations>
            <annotation>@Deprecated(since = "4.0.0")</annotation>
          </annotations>
        </field>
        <field>
          <name>testResources</name>
          <version>4.0.0+</version>
          <description>
            This element describes all the classpath resources such as properties
            files associated with a project's unit tests.