Fix eclipse compile issues (#29056)

Christoph Büscher · web-flow · commit 90469123b3bb · 2018-03-14T13:44:12.000+01:00
Eclipse Oxygen doesn't seem to be able to infer the correct type
arguments for Arrays::asList in the given test context. Adding cast to
make this more explicit.
diff --git a/libs/elasticsearch-core/src/test/java/org/elasticsearch/core/internal/io/IOUtilsTests.java b/libs/elasticsearch-core/src/test/java/org/elasticsearch/core/internal/io/IOUtilsTests.java
@@ -53,7 +53,7 @@ public void testCloseArray() throws IOException {
     }
 
     public void testCloseIterable() throws IOException {
-        runTestClose(Arrays::asList, IOUtils::close);
+        runTestClose((Function<Closeable[], List<Closeable>>) Arrays::asList, IOUtils::close);
     }
 
     private <T> void runTestClose(final Function<Closeable[], T> function, final CheckedConsumer<T, IOException> close) throws IOException {
@@ -74,7 +74,7 @@ public void testCloseArrayWithIOExceptions() throws IOException {
     }
 
     public void testCloseIterableWithIOExceptions() throws IOException {
-        runTestCloseWithIOExceptions(Arrays::asList, IOUtils::close);
+        runTestCloseWithIOExceptions((Function<Closeable[], List<Closeable>>) Arrays::asList, IOUtils::close);
     }
 
     private <T> void runTestCloseWithIOExceptions(
@@ -113,7 +113,7 @@ public void testDeleteFilesIgnoringExceptionsArray() throws IOException {
     }
 
     public void testDeleteFilesIgnoringExceptionsIterable() throws IOException {
-        runDeleteFilesIgnoringExceptionsTest(Arrays::asList, IOUtils::deleteFilesIgnoringExceptions);
+        runDeleteFilesIgnoringExceptionsTest((Function<Path[], List<Path>>) Arrays::asList, IOUtils::deleteFilesIgnoringExceptions);
     }
 
     private <T> void runDeleteFilesIgnoringExceptionsTest(

Original file line number	Diff line number	Diff line change
`@@ -53,7 +53,7 @@ public void testCloseArray() throws IOException {`
`53`	`53`	`}`
`54`	`54`
`55`	`55`	`public void testCloseIterable() throws IOException {`
`56`		`- runTestClose(Arrays::asList, IOUtils::close);`
	`56`	`+ runTestClose((Function<Closeable[], List<Closeable>>) Arrays::asList, IOUtils::close);`
`57`	`57`	`}`
`58`	`58`
`59`	`59`	`private <T> void runTestClose(final Function<Closeable[], T> function, final CheckedConsumer<T, IOException> close) throws IOException {`
`@@ -74,7 +74,7 @@ public void testCloseArrayWithIOExceptions() throws IOException {`
`74`	`74`	`}`
`75`	`75`
`76`	`76`	`public void testCloseIterableWithIOExceptions() throws IOException {`
`77`		`- runTestCloseWithIOExceptions(Arrays::asList, IOUtils::close);`
	`77`	`+ runTestCloseWithIOExceptions((Function<Closeable[], List<Closeable>>) Arrays::asList, IOUtils::close);`
`78`	`78`	`}`
`79`	`79`
`80`	`80`	`private <T> void runTestCloseWithIOExceptions(`
`@@ -113,7 +113,7 @@ public void testDeleteFilesIgnoringExceptionsArray() throws IOException {`
`113`	`113`	`}`
`114`	`114`
`115`	`115`	`public void testDeleteFilesIgnoringExceptionsIterable() throws IOException {`
`116`		`- runDeleteFilesIgnoringExceptionsTest(Arrays::asList, IOUtils::deleteFilesIgnoringExceptions);`
	`116`	`+ runDeleteFilesIgnoringExceptionsTest((Function<Path[], List<Path>>) Arrays::asList, IOUtils::deleteFilesIgnoringExceptions);`
`117`	`117`	`}`
`118`	`118`
`119`	`119`	`private <T> void runDeleteFilesIgnoringExceptionsTest(`