[hotfix-#1952][core|doris] Fix ARRAY and LARGEINT type conversion exc…

[zhiqiang-dev]

…eptions

Purpose of this pull request

Which issue you fix

Fixes # (issue).

Checklist:

• I have executed the 'mvn spotless:apply' command to format my code.
• I have a meaningful commit message (including the issue id, the template of commit message is '[label-type-#issue-id][fixed-module] a meaningful commit message.')
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.
• I have checked my code and corrected any misspellings.
• My commit is only one. (If there are multiple commits, you can use 'git squash' to compress multiple commits into one.)

[Copilot]

Pull request overview

This pull request introduces configurable timezone support to fix ARRAY and LARGEINT type conversion exceptions in the Doris connector. The fix allows users to control whether date/timestamp operations use the system's local timezone or the default GMT+8 timezone via a system property.

• Adds USE_LOCAL_TIMEZONE system property to control timezone behavior
• Modifies DateUtil to conditionally use local timezone or GMT+8 based on the system property
• Maintains backward compatibility by defaulting to GMT+8 when the property is not set

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[Copilot]

The variable name isUseLocalTimeZone does not follow Java naming conventions for boolean variables. In Java, boolean variable names should not include "is" as a prefix when declared, since the getter method will add "is" automatically. The variable should be named useLocalTimeZone instead of isUseLocalTimeZone.

Suggested change

	private static final boolean isUseLocalTimeZone =
	private static final boolean useLocalTimeZone =

[Copilot]

The new system property USE_LOCAL_TIMEZONE lacks documentation. A comment should be added to explain:

• What this property does (controls timezone behavior for date/timestamp formatting)
• How to set it (as a JVM system property)
• Valid values (true/false)
• Default behavior when not set (uses GMT+8)
• The impact on date/timestamp conversions across the application

Suggested change

	/**
	* System property: USE_LOCAL_TIMEZONE
	*
	* Controls timezone behavior for date/timestamp formatting throughout the application.
	*
	* How to set: Pass as a JVM system property, e.g. -DUSE_LOCAL_TIMEZONE=true
	* Valid values: "true" or "false" (case-insensitive)
	* Default behavior: If not set or set to "false", uses GMT+8 as the default timezone.
	* If set to "true", uses the local system timezone for date/timestamp conversions.
	*
	* Impact: Affects how dates and timestamps are formatted and parsed across the application.
	* Setting this to "true" will use the system's local timezone, which may change the results
	* of date/timestamp conversions depending on the environment where the JVM is running.
	*/