39 |
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//---------------------------------------------------------------- |
40 |
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// Configuration methods |
41 |
|
//---------------------------------------------------------------- |
42 |
< |
|
42 |
> |
|
43 |
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/** Returns an empty instance of the implementation class. */ |
44 |
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protected abstract BlockingQueue emptyCollection(); |
45 |
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54 |
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//---------------------------------------------------------------- |
55 |
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// Tests |
56 |
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//---------------------------------------------------------------- |
57 |
< |
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57 |
> |
|
58 |
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/** |
59 |
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* offer(null) throws NullPointerException |
60 |
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*/ |