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.
48 lines
1016 B
Plaintext
48 lines
1016 B
Plaintext
== Why is this an issue?
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Java 8 introduced ``++ThreadLocal.withInitial++`` which is a simpler alternative to creating an anonymous inner class to initialise a ``++ThreadLocal++`` instance.
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This rule raises an issue when a ``++ThreadLocal++`` anonymous inner class can be replaced by a call to ``++ThreadLocal.withInitial++``.
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=== Noncompliant code example
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[source,java]
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----
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ThreadLocal<List<String>> myThreadLocal =
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new ThreadLocal<List<String>>() { // Noncompliant
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@Override
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protected List<String> initialValue() {
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return new ArrayList<String>();
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}
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};
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----
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=== Compliant solution
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[source,java]
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----
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ThreadLocal<List<String>> myThreadLocal = ThreadLocal.withInitial(ArrayList::new);
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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 this anonymous class with a call to "ThreadLocal.withInitial".
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=== Highlighting
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ThreadLocal instance creation
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endif::env-github,rspecator-view[]
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