Map another ORA error to an NJS message

lib/errors.js

@@ -105,10 +105,12 @@ const ERR_INIT_ORACLE_CLIENT_ARGS = 90;
 const ERR_MISSING_FILE = 91;
 const ERR_INVALID_NUMBER_OF_CONNECTIONS = 92;
 const ERR_EXEC_MODE_ONLY_FOR_DML = 95;
+const ERR_POOL_HAS_BUSY_CONNECTIONS = 104;
 
 // define mapping for ODPI-C errors that need to be wrapped with NJS errors
 const adjustErrorXref = new Map();
 adjustErrorXref.set("DPI-1063", ERR_EXEC_MODE_ONLY_FOR_DML);
+adjustErrorXref.set("ORA-24422", ERR_POOL_HAS_BUSY_CONNECTIONS);
 
 // define mapping for error messages
 const messages = new Map();
@@ -267,6 +269,8 @@ messages.set(ERR_INVALID_NUMBER_OF_CONNECTIONS,
   'poolMax [%d] must be greater than or equal to poolMin [%d]');
 messages.set(ERR_EXEC_MODE_ONLY_FOR_DML,
   'setting batchErrors to true is only permitted with DML');
+messages.set(ERR_POOL_HAS_BUSY_CONNECTIONS,
+  'connection pool cannot be closed because connections are busy');
 
 //-----------------------------------------------------------------------------
 // assert()
@@ -523,6 +527,7 @@ module.exports = {
   ERR_MISSING_FILE,
   ERR_INVALID_NUMBER_OF_CONNECTIONS,
   ERR_EXEC_MODE_ONLY_FOR_DML,
+  ERR_POOL_HAS_BUSY_CONNECTIONS,
   assert,
   assertArgCount,
   assertParamPropBool,

test/poolClose.js

@@ -70,7 +70,7 @@ describe('51. poolClose.js', function() {
     const conn = await pool.getConnection();
     await testsUtil.assertThrowsAsync(
       async () => await pool.close(),
-      /ORA-24422:/
+      /NJS-104:/
     );
     await conn.close();
     await pool.close();

test/poolDrain.js

@@ -80,7 +80,7 @@ describe('170. poolDrain.js', () => {
       await pool.close();
     } catch (err) {
       should.exist(err);
-      (err.message).should.startWith('ORA-24422:');
+      (err.message).should.startWith('NJS-104:');
     } finally {
       await pool.close(0);
     }