```

### Thread-Local Storage

```java
// Set (in CrawlerThread)
CrawlingParameterUtil.setCrawlerContext(context);
CrawlingParameterUtil.setUrlQueue(urlQueue);

// Get (anywhere in same thread)
CrawlerContext ctx = CrawlingParameterUtil.getCrawlerContext();

// Clear (ALWAYS in finally)
CrawlingParameterUtil.clearAll();
```

## Log Message Guidelines

   *
   * 1. Both superclass toArray methods assume that size() gives a correct answer, while our size()
   * might not (and the answer might change while we're building the array).
   *
   * TODO: cpovirk - Is this an issue anywhere anymore? It looks to have been fixed for Java 8
   * (https://bugs.openjdk.org/browse/JDK-7121314) and before Lollipop
   * (https://r.android.com/47508). We *would* need to worry for J2KT, whose own concurrency support

  public void testScanFromFile_fileNotExists() throws IOException {
    ClassLoader classLoader = ClassPathTest.class.getClassLoader();
    assertThat(
            new ClassPath.LocationInfo(new File("no/such/file/anywhere"), classLoader)
                .scanResources())
        .isEmpty();
  }

  @AndroidIncompatible // ClassPath is documented as not supporting Android

labels.advance_search_filetype_word=MS Word
labels.advance_search_filetype_excel=MS Excel
labels.advance_search_filetype_powerpoint=MS PowerPoint
labels.advance_search_occt=Occurence
labels.advance_search_occt_default=Anywhere in the page
labels.advance_search_occt_allintitle=in the title of the page
labels.advance_search_occt_allinurl=in the URL of the page
labels.advance_search_sitesearch=Site or domain

  public void testScanFromFile_fileNotExists() throws IOException {
    ClassLoader classLoader = ClassPathTest.class.getClassLoader();
    assertThat(
            new ClassPath.LocationInfo(new File("no/such/file/anywhere"), classLoader)
                .scanResources())
        .isEmpty();
  }

  @AndroidIncompatible // ClassPath is documented as not supporting Android

labels.advance_search_filetype_word=MS Word
labels.advance_search_filetype_excel=MS Excel
labels.advance_search_filetype_powerpoint=MS PowerPoint
labels.advance_search_occt=Occurence
labels.advance_search_occt_default=Anywhere in the page
labels.advance_search_occt_allintitle=in the title of the page
labels.advance_search_occt_allinurl=in the URL of the page
labels.advance_search_sitesearch=Site or domain

    /** The key of the message: Occurence */
    public static final String LABELS_advance_search_occt = "{labels.advance_search_occt}";

    /** The key of the message: Anywhere in the page */
    public static final String LABELS_advance_search_occt_default = "{labels.advance_search_occt_default}";

    /** The key of the message: in the title of the page */