ToOptionalState() {
      element = null;
      extras = emptyList();
    }

    IllegalArgumentException multiples(boolean overflow) {
      StringBuilder sb =
          new StringBuilder().append("expected one element but was: <").append(element);
      for (Object o : extras) {
        sb.append(", ").append(o);
      }
      if (overflow) {
        sb.append(", ...");
      }
      sb.append('>');

        final int start = bufferIndex;
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize != 60) {
            throw new SMBProtocolDecodingException("Expected structureSize = 60");
        }
        this.closeFlags = SMBUtil.readInt2(buffer, bufferIndex + 2);
        bufferIndex += 4;
        bufferIndex += 4; // Reserved

            }
        };

        try {
            customEnv.getTimeAdjustTimeMillisAsLong();
            fail("Should throw NumberFormatException");
        } catch (NumberFormatException e) {
            // Expected exception
            assertNotNull(e);
        }
    }

    // Test various numeric values for time adjust
    public void xtest_getTimeAdjustTimeMillisAsLong_variousValues() {
        // Test negative value

        if (versionMatcher.matches(PlatformVersion)) {
          val description = StringDescription()
          versionMatcher.describeTo(description)
          description.appendText(" expected to fail with exception that ")
          failureMatcher.describeTo(description)

          fail<Any>(description.toString())
        }
      }
    }

   * header. It is an error to not consume a full value in [block].
   */
  internal inline fun <T> read(
    name: String?,
    block: (DerHeader) -> T,
  ): T {
    if (!hasNext()) throw ProtocolException("expected a value")

    val header = peekedHeader!!
    peekedHeader = null

    val pushedLimit = limit
    val pushedConstructed = constructed

```

You can check a web server's configuration using [Qualys SSL Labs][qualys]. OkHttp's TLS
configuration history is [tracked here](../security/tls_configuration_history.md).

Applications expected to be installed on older Android devices should consider adopting the
[Google Play Services’ ProviderInstaller][provider_installer]. This will increase security for users
and increase connectivity with web servers.

        if ((msg.getFlags2() & SmbConstants.FLAGS2_SECURITY_SIGNATURES) == 0) {
            // signature requirements need to be checked somewhere else
            log.warn("Expected signed response, but is not signed");
            return false;
        }

        update(this.macSigningKey, 0, this.macSigningKey.length);
        int index = offset;

        assertNotNull(list1);
        assertNotNull(list2);
        assertSame(list1, list2);
    }

    @Test
    @DisplayName("Test toString returns expected format")
    void testToString() {
        String result = response.toString();

        assertNotNull(result);
        assertTrue(result.startsWith("NtTransQuerySecurityResponse["));

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

/**
 * Test class for Smb2Constants
 * Tests all SMB2 protocol constants and their expected values
 */
@DisplayName("Smb2Constants Test Suite")
class Smb2ConstantsTest {

    @Test
    @DisplayName("Should have private constructor to prevent instantiation")

        SmbSessionImpl session = newSession();
        SmbTreeImpl t1 = session.getSmbTree("IPC$", null);
        SmbTreeImpl t2 = session.getSmbTree("ipc$", null); // case-insensitive match
        assertSame(t1, t2, "Expected same tree instance to be reused");
    }

    @ParameterizedTest
    @NullAndEmptySource
    @DisplayName("treeConnectLogon: invalid logon share throws SmbException")