}
                sitemapUrl = null;
            } else if (LOC_ELEMENT.equals(elementName)) {
                if (buf != null && sitemapUrl != null) {
                    sitemapUrl.setLoc(buf.toString().trim());
                    buf = null;
                }
            } else if (LASTMOD_ELEMENT.equals(elementName)) {
                if (buf != null && sitemapUrl != null) {

        GroupCQ cq = new GroupCQ();
        if (queryLambda != null) {
            queryLambda.callback(cq);
        }
        FilterAggregationBuilder builder = regFilterA(name, cq.getQuery());
        if (opLambda != null) {
            opLambda.callback(builder);
        }
        if (aggsLambda != null) {
            GroupCA ca = new GroupCA();
            aggsLambda.callback(ca);

        UserInfoCQ cq = new UserInfoCQ();
        if (queryLambda != null) {
            queryLambda.callback(cq);
        }
        FilterAggregationBuilder builder = regFilterA(name, cq.getQuery());
        if (opLambda != null) {
            opLambda.callback(builder);
        }
        if (aggsLambda != null) {
            UserInfoCA ca = new UserInfoCA();
            aggsLambda.callback(ca);

     */
    public static String toString(final Object obj) {
        return obj == null ? null : obj.toString();
    }

    /**
     * Returns the object, or the defaultValue if the object is <code>null</code>.
     * <p>
     * Usage example:
     * </p>
     *
     * <pre>
     * ObjectUtil.defaultValue(null, "NULL")  = "NULL"
     * ObjectUtil.defaultValue(null, 1)    = 1

        if (path == null || loader == null) {
            return null;
        }
        final String p = getResourcePath(path, extension);
        return loader.getResource(p);
    }

    /**
     * Returns the resource as a stream from the context class loader.
     *
     * @param path
     *            The resource path. Must not be {@literal null} or empty string.
     * @return The input stream

            false, false, "LocalDateTime", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnUpdatedAt = cci("updatedAt", "updatedAt", null, null, LocalDateTime.class, "updatedAt", null, false,
            false, false, "LocalDateTime", 0, 0, null, null, false, null, null, null, null, null, false);

    public ColumnInfo columnCreatedAt() {
        return _columnCreatedAt;
    }

                    val someVal: String? = null
                    var someVar: String? = null
                    fun foo(): String? = null
                }
            """
        ) {
            assertHasErrors(
                "Method com.example.Source.foo(): From non-null returning to null returning breaking change.",
                "Method com.example.Source.getSomeVal(): From non-null returning to null returning breaking change.",

                null, // effectiveModel is null
                null, // rawModel is null
                createMockModel("com.example", "test-project", "1.0.0") // fileModel is available
                );

        String projectId = (String) extractProjectIdMethod.invoke(null, mockResult);

        assertNotNull(projectId, "Project ID should not be null");
        assertEquals(

                                    propertyName, valueClass == null ? null : valueClass.getName(),
                                    valueClass == null ? null : valueClass.getClassLoader(), convertedValue,
                                    targetClass == null ? null : targetClass.getName(),
                                    targetClass == null ? null : targetClass.getClassLoader() }).initCause(t);
                }

        // Filter accepts only when name is exactly null, otherwise false
        SmbFilenameFilter filter = (dir, n) -> n == null;

        boolean result = filter.accept(mockDir, name);

        if (name == null) {
            assertTrue(result, "Null name should be accepted by this filter");
        } else {
            assertFalse(result, "Non-null names should be rejected by this filter");
        }