chore: refactor

src/main/java/com/limechain/exception/grandpa/GhostExecutionException.java

@@ -0,0 +1,7 @@
+package com.limechain.exception.grandpa;
+
+public class GhostExecutionException extends GrandpaGenericException {
+    public GhostExecutionException(String message) {
+        super(message);
+    }
+}

src/main/java/com/limechain/exception/grandpa/GrandpaGenericException.java

@@ -0,0 +1,7 @@
+package com.limechain.exception.grandpa;
+
+public class GrandpaGenericException extends RuntimeException {
+    public GrandpaGenericException(String message) {
+        super(message);
+    }
+}

src/main/java/com/limechain/grandpa/GrandpaService.java

@@ -1,6 +1,6 @@
 package com.limechain.grandpa;
 
-import com.limechain.exception.global.ExecutionFailedException;
+import com.limechain.exception.grandpa.GhostExecutionException;
 import com.limechain.exception.storage.BlockStorageGenericException;
 import com.limechain.grandpa.state.GrandpaState;
 import com.limechain.network.protocol.grandpa.messages.commit.Vote;
@@ -21,6 +21,7 @@
 @Log
 @Component
 public class GrandpaService {
+
     private final GrandpaState grandpaState;
     private final BlockState blockState;
 
@@ -36,13 +37,13 @@ public GrandpaService(GrandpaState grandpaState, BlockState blockState) {
      *
      * @return GRANDPA GHOST block as a vote
      */
-    public Vote getGrandpaGHOST() {
+    public Vote getGrandpaGhost() {
         var threshold = grandpaState.getThreshold();
 
         Map<Hash256, BigInteger> blocks = getPossibleSelectedBlocks(threshold, Subround.PREVOTE);
 
         if (blocks.isEmpty() || threshold.equals(BigInteger.ZERO)) {
-            throw new ExecutionFailedException("GHOST not found");
+            throw new GhostExecutionException("GHOST not found");
         }
 
         return selectBlockWithMostVotes(blocks);

src/test/java/com/limechain/grandpa/GrandpaServiceTest.java

@@ -55,7 +55,7 @@ void setUp() {
     void testGetGrandpaGHOSTWhereNoBlocksPassThreshold() {
         when(grandpaState.getThreshold()).thenReturn(BigInteger.valueOf(10));
         when(grandpaState.getPrevotes()).thenReturn(Map.of());
-        assertThrows(ExecutionFailedException.class, () -> grandpaService.getGrandpaGHOST());
+        assertThrows(ExecutionFailedException.class, () -> grandpaService.getGrandpaGhost());
     }
 
     @Test
@@ -77,7 +77,7 @@ void testGetGrandpaGHOSTWithBlockPassingThreshold() {
         when(blockState.isDescendantOf(firstVote.getBlockHash(), firstVote.getBlockHash())).thenReturn(true);
         when(blockState.isDescendantOf(secondVote.getBlockHash(), secondVote.getBlockHash())).thenReturn(true);
 
-        Vote result = grandpaService.getGrandpaGHOST();
+        Vote result = grandpaService.getGrandpaGhost();
         assertNotNull(result);
         assertEquals(firstVote.getBlockHash(), result.getBlockHash());
     }