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capture conversion: ensure captured wildcards are not replaced after creation, so substitution is consistent; at the same time ensure that "?" with upper bound Runnable is equivalent to "? extends Runnable"

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Anna Kozlova
2015-05-28 19:42:11 +02:00
parent 719bfffcae
commit cdb50293f2
14 changed files with 57 additions and 20 deletions
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java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEADEV15534.java
+1 -1
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@@ -19,7 +19,7 @@ class SortTest<R extends Comparable<R>> implements Comparable<SortTest<R>> {
SortTest<?> t2 = new SortTest<Integer>(0);
list.add(t2);
<error descr="Inferred type 'SortTest<?>' for type parameter 'T' is not within its bound; should implement 'java.lang.Comparable<? super SortTest<?>>'">Collections.sort(list)</error>;
t1.compareTo<error descr="'compareTo(SortTest<capture<? extends java.lang.Comparable<capture<?>>>>)' in 'SortTest' cannot be applied to '(SortTest<capture<? extends java.lang.Comparable<capture<?>>>>)'">(t2)</error>;
t1.compareTo<error descr="'compareTo(SortTest<capture<?>>)' in 'SortTest' cannot be applied to '(SortTest<capture<?>>)'">(t2)</error>;
//this should be OK
SortTest<?>[] arr = new SortTest<?>[0];