Fix SpotBugs error: org.apache.commons.io.function.IOStream$1.next()

cannot throw NoSuchElementException
[org.apache.commons.io.function.IOStream$1] At IOStream.java:[line 98]
IT_NO_SUCH_ELEMENT

Author: garydgregory

src/changes/changes.xml

@@ -58,6 +58,7 @@ The <action> type attribute can be add,update,fix,remove.
       <action dev="ggregory" type="fix" due-to="Gary Gregory">Fix SpotBugs error: Class org.apache.commons.io.filefilter.RegexFileFilter defines non-transient non-serializable instance field pathToString [org.apache.commons.io.filefilter.RegexFileFilter] In RegexFileFilter.java SE_BAD_FIELD.</action>
       <action dev="ggregory" type="fix" due-to="Gary Gregory">Fix SpotBugs error: Class org.apache.commons.io.filefilter.DelegateFileFilter defines non-transient non-serializable instance field fileFilter [org.apache.commons.io.filefilter.DelegateFileFilter] In DelegateFileFilter.java SE_BAD_FIELD.</action>
       <action dev="ggregory" type="fix" due-to="Gary Gregory">Fix SpotBugs error: Class org.apache.commons.io.filefilter.DelegateFileFilter defines non-transient non-serializable instance field fileNameFilter [org.apache.commons.io.filefilter.DelegateFileFilter] In DelegateFileFilter.java SE_BAD_FIELD.</action>
+      <action dev="ggregory" type="fix" due-to="Gary Gregory">Fix SpotBugs error: org.apache.commons.io.function.IOStream$1.next() cannot throw NoSuchElementException [org.apache.commons.io.function.IOStream$1] At IOStream.java:[line 98] IT_NO_SUCH_ELEMENT.</action>
       <!-- UPDATE -->
       <action dev="ggregory" type="update" due-to="Gary Gregory">Bump org.codehaus.mojo:exec-maven-plugin from 3.1.0 to 3.1.1 #512.</action>
       <action dev="ggregory" type="update" due-to="Gary Gregory">Bump commons-lang3 from 3.13.0 to 3.14.0.</action>      

src/main/java/org/apache/commons/io/function/IOStream.java

@@ -22,6 +22,7 @@
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
+import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Spliterator;
@@ -93,8 +94,14 @@ public boolean hasNext() {
             }
 
             @Override
-            public T next() {
-                return t = t == IOStreams.NONE ? seed : Erase.apply(f, t);
+            public T next() throws NoSuchElementException {
+                try {
+                    return t = t == IOStreams.NONE ? seed : f.apply(t);
+                } catch (IOException e) {
+                    final NoSuchElementException nsee = new NoSuchElementException();
+                    nsee.initCause(e);
+                    throw nsee;
+                }
             }
         };
         return adapt(StreamSupport.stream(Spliterators.spliteratorUnknownSize(iterator, Spliterator.ORDERED | Spliterator.IMMUTABLE), false));

src/test/java/org/apache/commons/io/function/IOStreamTest.java

@@ -29,6 +29,7 @@
 import java.io.IOException;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.NoSuchElementException;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Collectors;
@@ -296,7 +297,7 @@ public void testIterateException() throws IOException {
         final IOStream<Long> stream = IOStream.iterate(1L, TestUtils.throwingIOUnaryOperator());
         final IOIterator<Long> iterator = stream.iterator();
         assertEquals(1L, iterator.next());
-        assertThrows(IOException.class, () -> iterator.next());
+        assertThrows(NoSuchElementException.class, () -> iterator.next());
     }
 
     @SuppressWarnings("resource") // custom stream not recognized by compiler warning machinery