void constructorNullResourceLoc() {
        // Null resourceLoc doesn't throw NPE immediately - it's stored and may cause issues when used
        // This test documents the current behavior
        SmbTreeConnection freshConnection = mock(SmbTreeConnection.class);
        when(freshConnection.acquire()).thenReturn(freshConnection);

        // Should not throw NPE during construction

    }

    // Test insert with no chains
    @Test
    public void test_insert_noChains() {
        User user = createTestUser("testuser");
        authenticationManager.insert(user);
        // Should not throw exception even with no chains
    }

    // Test insert with single chain
    @Test
    public void test_insert_singleChain() {
        User user = createTestUser("testuser");

            emptyEnv.get("non.existent.property");
            fail("Should throw ConfigPropertyNotFoundException");
        } catch (ConfigPropertyNotFoundException e) {
            assertTrue(e.getMessage().contains("non.existent.property"));
        }

        try {
            emptyEnv.is("non.existent.boolean");
            fail("Should throw ConfigPropertyNotFoundException");
        } catch (ConfigPropertyNotFoundException e) {

   * LoadingCache#getAll}.
   *
   * <p>If the returned map doesn't contain all requested {@code keys} then the entries it does
   * contain will be cached, but {@code getAll} will throw an exception. If the returned map
   * contains extra keys not present in {@code keys} then all returned entries will be cached, but
   * only the entries for {@code keys} will be returned from {@code getAll}.
   *

                    if (k.isInstance(x)) {
                      return k.cast(x);
                    }
                  }
                  throw new NoSuchFieldError("the Unsafe");
                });
      } catch (PrivilegedActionException e) {
        throw new RuntimeException("Could not initialize intrinsics", e.getCause());
      }
    }

    static {
      theUnsafe = getUnsafe();

          method.invoke(object, args);
        } catch (InvocationTargetException ex) {
          try {
            throw ex.getCause();
          } catch (UnsupportedOperationException unsupported) {
            // this is a legit exception
          }
        }
      } catch (Throwable cause) {
        throw new InvocationTargetException(cause, method + " with args: " + Arrays.toString(args));
      }
    }
  }

        for (int i = 0; i < 8; i++) {
            if (material[i] != NTLMSSP_SIGNATURE[i]) {
                throw new IOException("Not an NTLMSSP message.");
            }
        }
        if (readULong(material, 8) != 2) {
            throw new IOException("Not a Type 2 message.");
        }
        final int flags = readULong(material, 20);
        setFlags(flags);

    public void test_run_withIOException() throws InterruptedException {
        InputStream faultyStream = new InputStream() {
            @Override
            public int read() throws IOException {
                throw new IOException("Test exception");
            }
        };

        InputStreamThread thread = new InputStreamThread(faultyStream, StandardCharsets.UTF_8, 10, null);
        thread.start();

            mkdirsAndWriteText(
                """
            class FlakyTest {
                @org.junit.jupiter.api.Test
                public void test() {
                    ${if (fail) "throw new IllegalStateException();" else ""}
                }
            }
                """.trimIndent()
            )
        }

          }
        } catch (thrown: Throwable) {
          // A task failed. Update execution state and re-throw the exception.
          withLock {
            afterRun(task, -1L, false)
          }
          if (thrown is InterruptedException) {
            Thread.currentThread().interrupt()
          } else {
            throw thrown
          }
        } finally {
          currentThread.name = oldName
        }
      }