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minor java collections work

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This commit is contained in:
eugenp 2013-12-24 16:59:03 +02:00
parent 22ebf4a218
commit 62fd8f8978
1 changed files with 7 additions and 0 deletions
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7
core-java/src/test/java/org/baeldung/java/CoreJavaUnitTest.java
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@ -35,6 +35,13 @@ public class CoreJavaUnitTest {
unmodifiableList.add("four"); unmodifiableList.add("four");
} }
@Test(expected = UnsupportedOperationException.class)
public final void givenUsingGuavaBuilder_whenUnmodifiableListIsCreatedFromOriginal_thenNoLongerModifiable() {
final List<String> list = new ArrayList<String>(Arrays.asList("one", "two", "three"));
final ImmutableList<Object> unmodifiableList = ImmutableList.builder().addAll(list).build();
unmodifiableList.add("four");
}
@Test(expected = UnsupportedOperationException.class) @Test(expected = UnsupportedOperationException.class)
public final void givenUsingCommonsCollections_whenUnmodifiableListIsCreatedFromOriginal_thenNoLongerModifiable() { public final void givenUsingCommonsCollections_whenUnmodifiableListIsCreatedFromOriginal_thenNoLongerModifiable() {
final List<String> list = new ArrayList<String>(Arrays.asList("one", "two", "three")); final List<String> list = new ArrayList<String>(Arrays.asList("one", "two", "three"));