delete exceptions

soot-oss · Jan 14, 2025 · 9b138a8 · 9b138a8
1 parent 13c4ad7
commit 9b138a8
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Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/sootup.core/src/main/java/sootup/core/graph/PostOrderBlockIterator.java b/sootup.core/src/main/java/sootup/core/graph/PostOrderBlockIterator.java
@@ -24,6 +24,7 @@
 import java.util.*;
 import java.util.stream.Collectors;
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 
 public class PostOrderBlockIterator implements BlockIterator {
 
@@ -45,10 +46,8 @@ public boolean hasNext() {
   }
 
   @Override
+  @Nullable
   public BasicBlock<?> next() {
-    if (!hasNext()) {
-      throw new NoSuchElementException("There is no more block.");
-    }
     while (!stack.isEmpty()) {
       Frame frame = stack.peek();
       if (frame.succIterator.hasNext()) {

diff --git a/sootup.core/src/main/java/sootup/core/graph/ReversePostOrderBlockIterator.java b/sootup.core/src/main/java/sootup/core/graph/ReversePostOrderBlockIterator.java
@@ -25,6 +25,7 @@
 import java.util.stream.Collectors;
 import java.util.stream.StreamSupport;
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 
 public class ReversePostOrderBlockIterator implements BlockIterator {
   private List<BasicBlock<?>> blocks;
@@ -46,9 +47,10 @@ public boolean hasNext() {
   }
 
   @Override
+  @Nullable
   public BasicBlock<?> next() {
     if (!hasNext()) {
-      throw new NoSuchElementException("There is no more block.");
+      return null;
     }
     i++;
     return blocks.get(i - 1);