}

    public ModelProblemCollectorRequest setException(Exception exception) {
        this.exception = exception;
        return this;
    }

    public String getMessage() {
        return message;
    }

    public ModelProblemCollectorRequest setMessage(String message) {
        this.message = message;
        return this;
    }

    public InputLocation getLocation() {
        return location;
    }

                        } catch (InterpolationException e) {
                            problems.add(new ModelProblemCollectorRequest(Severity.ERROR, Version.BASE)
                                    .setMessage(e.getMessage())
                                    .setException(e));
                        }
                        cache.put(value, c);
                    }
                    return c;
                }

        }

        buffer.append(' ').append(message);

        // CHECKSTYLE_OFF: LineLength
        problems.add(new ModelProblemCollectorRequest(severity, version)
                .setMessage(buffer.toString())
                .setLocation(getLocation(fieldName, tracker)));
        // CHECKSTYLE_ON: LineLength
    }

            Relocation target, Relocation source, boolean sourceDominant, Map<Object, Object> context) {
        String src = source.getMessage();
        if (src != null) {
            if (sourceDominant || target.getMessage() == null) {
                target.setMessage(src);
                target.setLocation("message", source.getLocation("message"));
            }
        }
    }

        // Messages should remain as provided
        assertEquals(message1, exception1.getMessage());
        assertEquals(message2, exception2.getMessage());

        // Messages should not be affected by cause
        assertFalse(exception1.getMessage().equals(exception2.getMessage()));
    }

    @Test
    public void test_longMessage() {
        // Test with very long message

        assertEquals("SSO process failed", topLevel.getMessage());
        assertEquals(level1, topLevel.getCause());
        assertEquals("Level 1: Authentication service error", topLevel.getCause().getMessage());
        assertEquals(level2, topLevel.getCause().getCause());
        assertEquals("Level 2: User lookup failed", topLevel.getCause().getCause().getMessage());

        assertEquals(originalException.getMessage(), deserializedException.getMessage());
        assertNotNull(deserializedException.getCause());
        assertEquals(originalException.getCause().getMessage(), deserializedException.getCause().getMessage());
    }

    @Test
    public void test_getMessage() {
        // Test getMessage() method
        String message = "Custom SSO error message";

        // Then
        assertTrue(exception.getMessage().toLowerCase().contains("sharing") || exception.getMessage().toLowerCase().contains("violation")
                || exception.getMessage().toLowerCase().contains("used") || exception.getMessage().toLowerCase().contains("being used")
                || exception.getMessage().toLowerCase().contains("process"));
    }

    @Test

            // If exception thrown, validation is working
            assertTrue(e.getMessage().contains("Invalid negotiate context data length") || e.getMessage().contains("Buffer too small")
                    || e.getMessage().contains("negotiate context"), "Validation detected issue: " + e.getMessage());
        }
    }

    /**
     * Test negotiate context buffer overflow protection.
     */

        assertTrue(exception.getMessage().contains(cause.getClass().getName()));
        assertTrue(exception.getMessage().contains("Cause exception"));
    }

    @Test
    public void test_constructor_withNullMessage() {
        // Test constructor with null message
        FessSystemException exception = new FessSystemException((String) null);

        assertNull(exception.getMessage());
        assertNull(exception.getCause());