java formatter: unable to wrap/break long Strings

I come from Intellij idea and I'm used to break long lines with the formatter. I managed to export/import most of the settings, but I can not manage it that vscode breaks long String lines, splitting the Strings with "firstPart" + "secondPart".

These are my related settings in the codeFormatterSettings.json:

<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="180"/>
<setting id="org.eclipse.jdt.core.formatter.formatter_wrap_long_strings" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_strings" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_before_string_concatenation" value="true"/>

Please ask if I should upload the whole file.

This is an example line of code:

String strSystemPrompt =
                "You are a system that generates a concise and informative answer in less than 100 words for the given question, which is marked with QUESTION. Use the given search results marked with SEARCH RESULT as only knowledge base. Answer questions in the language of the question, i.e. german questions in german and only english questions in english.";

This is the expected output:

String strSystemPrompt =
                "You are a system that generates a concise and informative answer in less than 100 words for the given question, which is marked with QUESTION. Use the given search" + 
                "results marked with SEARCH RESULT as only knowledge base. Answer questions in the language of the question, i.e. german questions in german and only english" + 
                "questions in english.";

Am I missing something, is it not supported, or is it a bug?

VSCode version 1.98.2
Java Language support:
Version
1.40.0
Last Updated
2025-03-06, 08:33:26

まず、codeFormatterSettings.json に示されている設定と issue の Java 例を使って、formatter の動作を再現します。一覧にある長い文字列と文字列連結のオプションが、VS Code extension で使用される Java formatter に渡っているか確認します。期待される出力に示されているように、長い Java 文字列リテラルが連結された文字列に分割されれば完了です。