diff --git a/modules/swagger-jaxrs2/src/main/java/io/swagger/v3/jaxrs2/Reader.java b/modules/swagger-jaxrs2/src/main/java/io/swagger/v3/jaxrs2/Reader.java
index b0e5f2b080..f9f4f1943f 100644
--- a/modules/swagger-jaxrs2/src/main/java/io/swagger/v3/jaxrs2/Reader.java
+++ b/modules/swagger-jaxrs2/src/main/java/io/swagger/v3/jaxrs2/Reader.java
@@ -1173,11 +1173,10 @@ private boolean existOperationId(String operationId) {
             return false;
         }
         for (PathItem path : openAPI.getPaths().values()) {
-            String pathOperationId = extractOperationIdFromPathItem(path);
-            if (operationId.equalsIgnoreCase(pathOperationId)) {
+            Set<String> pathOperationIds = extractOperationIdFromPathItem(path);
+            if (pathOperationIds.contains(operationId)) {
                 return true;
             }
-
         }
         return false;
     }
@@ -1213,23 +1212,30 @@ protected ResolvedParameter getParameters(Type type, List<Annotation> annotation
         return extractParametersResult;
     }
 
-    private String extractOperationIdFromPathItem(PathItem path) {
-        if (path.getGet() != null) {
-            return path.getGet().getOperationId();
-        } else if (path.getPost() != null) {
-            return path.getPost().getOperationId();
-        } else if (path.getPut() != null) {
-            return path.getPut().getOperationId();
-        } else if (path.getDelete() != null) {
-            return path.getDelete().getOperationId();
-        } else if (path.getOptions() != null) {
-            return path.getOptions().getOperationId();
-        } else if (path.getHead() != null) {
-            return path.getHead().getOperationId();
-        } else if (path.getPatch() != null) {
-            return path.getPatch().getOperationId();
+    private Set<String> extractOperationIdFromPathItem(PathItem path) {
+        Set<String> ids = new HashSet<>();
+        if (path.getGet() != null && StringUtils.isNotBlank(path.getGet().getOperationId())) {
+            ids.add(path.getGet().getOperationId());
         }
-        return "";
+        if (path.getPost() != null && StringUtils.isNotBlank(path.getPost().getOperationId())) {
+            ids.add(path.getPost().getOperationId());
+        }
+        if (path.getPut() != null && StringUtils.isNotBlank(path.getPut().getOperationId())) {
+            ids.add(path.getPut().getOperationId());
+        }
+        if (path.getDelete() != null && StringUtils.isNotBlank(path.getDelete().getOperationId())) {
+            ids.add(path.getDelete().getOperationId());
+        }
+        if (path.getOptions() != null && StringUtils.isNotBlank(path.getOptions().getOperationId())) {
+            ids.add(path.getOptions().getOperationId());
+        }
+        if (path.getHead() != null && StringUtils.isNotBlank(path.getHead().getOperationId())) {
+            ids.add(path.getHead().getOperationId());
+        }
+        if (path.getPatch() != null && StringUtils.isNotBlank(path.getPatch().getOperationId())) {
+            ids.add(path.getPatch().getOperationId());
+        }
+        return ids;
     }
 
     private boolean isEmptyComponents(Components components) {
diff --git a/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/ReaderTest.java b/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/ReaderTest.java
index 0b3c32805e..d9a3abd5ff 100644
--- a/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/ReaderTest.java
+++ b/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/ReaderTest.java
@@ -215,9 +215,13 @@ public void testResolveDuplicatedOperationId() {
         assertNotNull(paths);
         Operation firstOperation = paths.get(PATH_REF).getGet();
         Operation secondOperation = paths.get(PATH_2_REF).getGet();
+        Operation thirdOperation = paths.get(PATH_REF).getPost();
         assertNotNull(firstOperation);
         assertNotNull(secondOperation);
+        assertNotNull(thirdOperation);
         assertNotEquals(firstOperation.getOperationId(), secondOperation.getOperationId());
+        assertNotEquals(firstOperation.getOperationId(), thirdOperation.getOperationId());
+        assertNotEquals(secondOperation.getOperationId(), thirdOperation.getOperationId());
     }
 
     @Test(description = "Get a Duplicated Operation Id with same id as method name")
@@ -229,9 +233,15 @@ public void testResolveDuplicatedOperationIdMethodName() {
         assertNotNull(paths);
         Operation firstOperation = paths.get("/1").getGet();
         Operation secondOperation = paths.get("/2").getGet();
+        Operation secondPostOperation = paths.get("/2").getPost();
+        Operation thirdPostOperation = paths.get("/3").getPost();
         assertNotNull(firstOperation);
         assertNotNull(secondOperation);
+        assertNotNull(secondPostOperation);
+        assertNotNull(thirdPostOperation);
         assertNotEquals(firstOperation.getOperationId(), secondOperation.getOperationId());
+        assertNotEquals(secondOperation.getOperationId(), secondPostOperation.getOperationId());
+        assertNotEquals(secondPostOperation.getOperationId(), thirdPostOperation.getOperationId());
         Operation thirdOperation = paths.get("/3").getGet();
         Operation fourthOperation = paths.get("/4").getGet();
         assertNotNull(thirdOperation);
diff --git a/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationIdResource.java b/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationIdResource.java
index 7bc519c320..77c676cff7 100644
--- a/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationIdResource.java
+++ b/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationIdResource.java
@@ -3,6 +3,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 
 import javax.ws.rs.GET;
+import javax.ws.rs.POST;
 import javax.ws.rs.Path;
 import javax.ws.rs.core.Response;
 
@@ -17,6 +18,15 @@ public Response getSummaryAndDescription() {
         return Response.ok().entity("ok").build();
     }
 
+    @POST
+    @Path("/")
+    @Operation(operationId = "operationId",
+            summary = "Operation Summary",
+            description = "Operation Description")
+    public Response postSummaryAndDescription() {
+        return Response.ok().entity("ok").build();
+    }
+
     @GET
     @Path("/path")
     @Operation(operationId = "operationId",
diff --git a/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationMethodNameResource.java b/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationMethodNameResource.java
index 60e5f198e4..9e9fe62623 100644
--- a/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationMethodNameResource.java
+++ b/modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/DuplicatedOperationMethodNameResource.java
@@ -3,6 +3,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 
 import javax.ws.rs.GET;
+import javax.ws.rs.POST;
 import javax.ws.rs.Path;
 import javax.ws.rs.core.Response;
 
@@ -23,12 +24,27 @@ public Response getSummaryAndDescription2() {
         return Response.ok().entity("ok").build();
     }
 
+    @POST
+    @Path("/2")
+    @Operation(operationId = "postSummaryAndDescription3",
+            summary = "Operation Summary",
+            description = "Operation Description")
+    public Response postSummaryAndDescription2() {
+        return Response.ok().entity("ok").build();
+    }
+
     @GET
     @Path("/3")
     public Response getSummaryAndDescription3() {
         return Response.ok().entity("ok").build();
     }
 
+    @POST
+    @Path("/3")
+    public Response postSummaryAndDescription3() {
+        return Response.ok().entity("ok").build();
+    }
+
     @GET
     @Path("/4")
     public Response getSummaryAndDescription3(String foo) {
diff --git a/modules/swagger-jaxrs2/src/test/resources/petstore/FullPetResource.yaml b/modules/swagger-jaxrs2/src/test/resources/petstore/FullPetResource.yaml
index cbb00cb192..fb9fb14ce8 100644
--- a/modules/swagger-jaxrs2/src/test/resources/petstore/FullPetResource.yaml
+++ b/modules/swagger-jaxrs2/src/test/resources/petstore/FullPetResource.yaml
@@ -496,7 +496,7 @@ paths:
             '*/*': {}
   /notannotatedoperation:
     get:
-      operationId: getUser_1
+      operationId: getUser_2
       responses:
         default:
           description: default response
@@ -506,7 +506,7 @@ paths:
                 type: string
   /notannotatedoperationduplicated:
     get:
-      operationId: getUser_2
+      operationId: getUser_3
       requestBody:
         content:
           '*/*':
@@ -521,7 +521,7 @@ paths:
                 type: string
   /operationsresource2:
     get:
-      operationId: getUser_3
+      operationId: getUser_4
       responses:
         default:
           description: default response
@@ -569,7 +569,7 @@ paths:
               schema:
                 type: string
     post:
-      operationId: getUser_4
+      operationId: getUser_5
       requestBody:
         content:
           '*/*':
@@ -599,7 +599,7 @@ paths:
                 type: string
   /operationwithouannotation:
     get:
-      operationId: getUser_4
+      operationId: getUser_6
       responses:
         default:
           description: default response
@@ -1190,7 +1190,7 @@ paths:
           description: Status OK
   /noimplementationresponseresource:
     get:
-      operationId: getUser_5
+      operationId: getUser_7
       parameters:
       - name: userId
         in: query