Eclipse 自动完成:Java 1.7 泛型钻石 [英] Eclipse Auto Complete: Java 1.7 Generics Diamond

问题描述

我刚刚升级到 Luna(来自 Kepler)，我注意到一些小(但很烦人)的问题:
自动完成无法为变量初始化中已经指定的泛型生成菱形<>".例如，当我输入:

I just upgraded to Luna (from Kepler) and I noticed some little (yet annoying) problem:
The auto completion lacks the possibility to generate diamonds "<>" for already specified generics in variable initialisation. For Example, when I type:

Set<String> mySet = new HashSet 

我希望它会自动完成

Set<String> mySet = new HashSet<>();

而不是

Set<String> mySet = new HashSet<String>();

我使用的是 JDK 1.7，并且合规性级别也设置为 1.7.

I am using JDK 1.7 and the compliance level is set to 1.7 also.

同样很奇怪的是，当我在自动完成过程中多次点击 STRG+Space 直到它再次到达 java-autocompletion 然后点击 Enter 时，它会提供预期的钻石.

Its also very strange that when I hit STRG+Space multiple times during auto-completing till it reaches java-autocompletion again and then hit Enter it delivers the expected diamonds.

这在我看来很像一个错误.
此错误是否已知"，是否有解决此问题的方法?找不到与此主题相关的任何内容.

This looks very much like a bug to me.
Is this bug "known" and is there any workaround for this issue? Could not find anything related to this topic.

推荐答案

您很可能安装了 Code Recommenders 插件.不幸的是，这个插件受到 bug #435597 的影响，它破坏了这个功能.

You have most likely installed the Code Recommenders plug-in. Unfortunately this plug-in is affected by bug #435597 which breaks this functionality.

只有当您在‘默认’内容辅助列表"(Eclipse Preferences > Java > Editor> 内容辅助 > 高级).例如，我可以通过禁用以下建议类型来恢复正确的行为:

This bug appears to occur only if you have certain proposal kinds enabled in the "'default' content assist list" (Eclipse Preferences > Java > Editor > Content Assist > Advanced). For example I could get back the correct behavior by disabling the following proposal kinds:

• 基本提案
• JPA 提案
• 模板提案

(如果您使用代码模板，最后一个可能是最烦人的……)

(the last one is likely the most annoying if you are using code templates…)

当您使用 ctrl+space 进行循环时，您实际上达到了Java 提案"(而不是Intelligent Java Proposals (Code Recommenders)")，不受此错误影响.

When you are cycling with ctrl+space, you are actually reaching the "Java Proposals" (instead of the "Intelligent Java Proposals (Code Recommenders)"), which is not affected by this bug.

此错误计划在 2.2.0 版发布2015 年 6 月.目前您能做的最好的事情是:

This bug is scheduled for release 2.2.0 in June 2015. The best you can do for the moment is:

• 使用建议来检查哪些建议为您触发了错误(在执行此操作之前，请先截取当前设置的屏幕截图)；
• 投票错误 #435597和 bug #435660 以修复它们；
• 提出补丁以修复这些错误:-)

• Play with the proposals to check which ones trigger the bug for you (maybe take a screenshot of your current setup before doing that);
• Vote for bug #435597 and bug #435660 to get them fixed;
• Propose patches for fixing those bugs :-)

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