assertThat(future.isCancelled()).isFalse();

    try {
      getDone(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().isSameInstanceAs(expectedException);
    }

    try {
      getDoneFromTimeoutOverload(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().isSameInstanceAs(expectedException);
    }

                fos.write(chunk);
            }
        }

        try {
            FileUtil.readBytes(largeFile);
            fail("Expected IORuntimeException for large file");
        } catch (final IORuntimeException e) {
            assertTrue("Error message should mention file size", e.getMessage().contains("File too large"));
        }
    }

    /**
     * Test readBytes with file within size limit

            }
            stream.close();
        } catch (IOException e) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        ASN1Sequence sequence;
        try {
            sequence = ASN1Util.as(ASN1Sequence.class, derToken.getBaseObject());
        } catch (IOException e) {
            throw new PACDecodingException("Malformed kerberos ticket", e);

                int compressedSize = deflater.deflate(buffer);
                baos.write(buffer, 0, compressedSize);
            }

            deflater.end();
            return baos.toByteArray();
        } catch (Exception e) {
            throw new CIFSException("LZ77 compression failed", e);
        }
    }

    /**
     * Decompresses LZ77 data.
     */

            }
            aliasesRequestBuilder.execute().actionGet(suggestSettings.getIndicesTimeout());
        } catch (final SuggesterException e) {
            // Re-throw SuggesterException with original message
            throw e;
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {

### 9.2 Thread Safety
- Use concurrent data structures for lease storage
- Minimize lock contention in hot paths
- Async handling of lease breaks

### 9.3 Network Efficiency
- Batch lease requests when possible
- Implement lease key reuse for related files
- Optimize lease break acknowledgment timing

## 10. Error Handling

### 10.1 Lease Break Timeout
```java

                tempBuf.append(Arrays.toString((double[]) value));
            } else {
                tempBuf.append('"').append(StringEscapeUtils.escapeJson(value.toString())).append('"');
            }
        } catch (final Exception e) {
            tempBuf.append("null");
        }
        buf.append(tempBuf.toString());
        return buf;
    }

    /**
     * Appends a timestamp to the buffer.
     *

    try {
      getMap().replace(k3(), null);
    } catch (NullPointerException tolerated) {
      // permitted not to throw because it would be a no-op
    }
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_KEY_QUERIES)
  public void testReplace_absentNullKeyUnsupported() {
    try {
      getMap().replace(null, v3());
    } catch (NullPointerException tolerated) {

        } catch (final IllegalArgumentException e) {
            assertTrue(e.getMessage().contains("xml"));
        }
    }

    @Test
    public void test_createFormatter_null() {
        try {
            indexExportJob.createFormatter(null);
            fail("Expected IllegalArgumentException");
        } catch (final IllegalArgumentException e) {

                        null,
                        "artifactId of a plugin must be defined. ",
                        plugin);
            }

            // This will catch cases like <version></version> or <version/>
            if (plugin.getVersion() != null && plugin.getVersion().trim().isEmpty()) {
                addViolation(
                        problems,