cpovirk <******@****.***> 1774283786 -0700

# ADR-0002 - Avoid using Java serialization

## Status

- ACCEPTED on 2023-12-01

## Context

In Gradle we often need to serialize in-memory objects for caching, or to transmit them across process barriers, etc.
Java serialization is one way to implement this, however, despite its simplicity of implementation, it has several drawbacks:

- **Performance:**
Java's built-in serialization mechanism is often slower compared to other serialization solutions.

            processor.init();

            // Should handle empty searcher list gracefully
            final List<Map<String, Object>> results = processor.search("*", new TestSearchRequestParams(0, 10, 0), OptionalThing.empty());
            assertNotNull(results);
        }
    }

    /**
     * Test setSearcher when list is initially empty.
     */
    @Test

            processor.init();

            // Should handle exception gracefully and return results from working searcher
            final List<Map<String, Object>> results = processor.search("*", new TestSearchRequestParams(0, 10, 0), OptionalThing.empty());
            assertNotNull(results);
        }
    }

    /**
     * Test handling of searcher that throws FessSystemException.
     */
    @Test

  public void testCollisionsDueToIncorrectSignExtension() {
    byte[] col1 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0x80};
    byte[] col2 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0x81};
    byte[] col3 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0xff};

    ImmutableSet<HashCode> hashCodes =
        ImmutableSet.of(

  public void testCollisionsDueToIncorrectSignExtension() {
    byte[] col1 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0x80};
    byte[] col2 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0x81};
    byte[] col3 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0xff};

    ImmutableSet<HashCode> hashCodes =
        ImmutableSet.of(

        protwordsFile.insert(newItem);

        // Verify the item was added
        protwordsFile.reload(null);
        boolean found = false;
        PagingList<ProtwordsItem> list = protwordsFile.selectList(0, 100);
        for (ProtwordsItem item : list) {
            if ("newWord".equals(item.getInput())) {
                found = true;
                break;
            }
        }
        assertTrue(found);

        doc.put("title", "Test");
        documentList1.add(doc);
        documentList2.add(doc);

        QueryResponseList qrList1 = new QueryResponseList(documentList1, 0, 10, 0);
        QueryResponseList qrList2 = new QueryResponseList(documentList2, 0, 10, 0);

        assertTrue(qrList1.equals(qrList2));
        assertEquals(qrList1.hashCode(), qrList2.hashCode());

        // Test with different content

@NullUnmarked
public class FileBackedOutputStreamTest extends IoTestCase {


  public void testThreshold() throws Exception {
    testThreshold(0, 100, true, false);
    testThreshold(10, 100, true, false);
    testThreshold(100, 100, true, false);
    testThreshold(1000, 100, true, false);
    testThreshold(0, 100, false, false);
    testThreshold(10, 100, false, false);
    testThreshold(100, 100, false, false);

                    try {
                        startLatch.await();
                        for (int i = 0; i < 10; i++) {
                            processor.search("*", new TestSearchRequestParams(0, 10, 0), OptionalThing.empty());
                            searchCount.incrementAndGet();
                            Thread.sleep(10);
                        }
                    } catch (InterruptedException e) {