diff --git a/c++/test/tobject.cpp b/c++/test/tobject.cpp
index 537716f11d..23c1453b18 100644
--- a/c++/test/tobject.cpp
+++ b/c++/test/tobject.cpp
@@ -609,10 +609,10 @@ static void test_getobjectinfo_same_file()
     catch (Exception& E)
     {
         cerr << " in Exception " << E.getCFuncName() << "detail: " << E.getCDetailMsg() << endl;
-        issue_fail_msg("test_file_name()", __LINE__, __FILE__, E.getCDetailMsg());
+        issue_fail_msg("test_getobjectinfo_same_file()", __LINE__, __FILE__, E.getCDetailMsg());
     }
 
-}   // test_h5o_getinfo_same_file
+}   // test_getobjectinfo_same_file
 
 /*-------------------------------------------------------------------------
  * Function:    test_object
diff --git a/src/H5Dselect.c b/src/H5Dselect.c
index 0ec34233cc..4ffce62364 100644
--- a/src/H5Dselect.c
+++ b/src/H5Dselect.c
@@ -227,6 +227,8 @@ H5D__select_io(const H5D_io_info_t *io_info, size_t elmt_size,
 
             /* Decrement number of elements left to process */
             HDassert(((size_t)tmp_file_len % elmt_size) == 0);
+            if(elmt_size == 0)
+                HGOTO_ERROR(H5E_DATASPACE, H5E_BADVALUE, FAIL, "Resulted in division by zero")
             nelmts -= ((size_t)tmp_file_len / elmt_size);
         } /* end while */
     } /* end else */
diff --git a/src/H5I.c b/src/H5I.c
index ca9ff61753..345c0102d1 100644
--- a/src/H5I.c
+++ b/src/H5I.c
@@ -355,6 +355,9 @@ H5Itype_exists(H5I_type_t type)
     FUNC_ENTER_API(FAIL)
     H5TRACE1("t", "It", type);
 
+    if(H5I_IS_LIB_TYPE(type))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADGROUP, FAIL, "cannot call public function on library type")
+
     if (type <= H5I_BADID || type >= H5I_next_type)
         HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "invalid type number")
 
diff --git a/test/tid.c b/test/tid.c
index 8a27c3b8ad..d2bcdc4177 100644
--- a/test/tid.c
+++ b/test/tid.c
@@ -224,6 +224,21 @@ static int basic_id_test(void)
             goto out;
     H5E_END_TRY
 
+    /* Test that H5Itype_exists cannot be called on library types because
+     * it is a public function
+     */
+    H5E_BEGIN_TRY
+        err = H5Itype_exists(H5I_GROUP);
+        if(err >= 0)
+            goto out;
+    H5E_END_TRY
+
+    H5E_BEGIN_TRY
+        err = H5Itype_exists(H5I_ATTR);
+        if(err >= 0)
+            goto out;
+    H5E_END_TRY
+
     return 0;
 
 out:
diff --git a/test/titerate.c b/test/titerate.c
index 87ddfb89d1..5fad1b4931 100644
--- a/test/titerate.c
+++ b/test/titerate.c
@@ -946,7 +946,7 @@ find_err_msg_cb(unsigned n, const H5E_error2_t *err_desc, void *_client_data)
 
     if (searched_err == NULL)
         return -1;
-    
+
     /* If the searched error message is found, stop the iteration */
     if (err_desc->desc != NULL && strcmp(err_desc->desc, searched_err->message) == 0)
     {