16f6c0aecf
Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in.
49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
== Why is this an issue?
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Java 7 introduced the diamond operator (``++<>++``) to reduce the verbosity of generics code. For instance, instead of having to declare a ``++List++``'s type in both its declaration and its constructor, you can now simplify the constructor declaration with ``++<>++``, and the compiler will infer the type.
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*Note* that this rule is automatically disabled when the project's ``++sonar.java.source++`` is lower than ``++7++``.
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=== Noncompliant code example
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[source,java]
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----
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List<String> strings = new ArrayList<String>(); // Noncompliant
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Map<String,List<Integer>> map = new HashMap<String,List<Integer>>(); // Noncompliant
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----
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=== Compliant solution
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[source,java]
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----
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List<String> strings = new ArrayList<>();
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Map<String,List<Integer>> map = new HashMap<>();
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Replace the type specification in this constructor call with the diamond operator ("<>"). [(sonar.java.source not set. Assuming 7 or greater.)]
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'''
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== Comments And Links
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(visible only on this page)
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=== on 17 Dec 2014, 13:55:04 Nicolas Peru wrote:
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Fine by me. This rule should probably be implemented only when we have figured a way to activate rules depending on version of java used.
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=== on 17 Dec 2014, 14:46:31 Ann Campbell wrote:
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\[~nicolas.peru] I've set it to off by default & tagged it java7 just like some of the other Java 7/8-specific rules. I think this could be implemented now & we trust the user to turn it on only when indicated.
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endif::env-github,rspecator-view[]
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