Merge pull request #6582 in CORE/base-third from release/11.0 to final/11.0

* commit '0bcd956ee2be9e3a070376f2d6fc0510980cf0e9':
  REPORT-76958 Druid获取连接的重试次数配置有bug
  REPORT-77015 Druid连接失败时抛出的报错不方便直接查看原因，10.0是可以的

fine-druid/src/main/java/com/fr/third/alibaba/druid/pool/DruidDataSource.java

@@ -1482,7 +1482,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             try {
                 poolableConnection = getConnectionInternal(maxWaitMillis);
             } catch (GetConnectionTimeoutException ex) {
-                if (notFullTimeoutRetryCnt <= this.notFullTimeoutRetryCount && !isFull()) {
+                if (notFullTimeoutRetryCnt < this.notFullTimeoutRetryCount && !isFull()) {
                     notFullTimeoutRetryCnt++;
                     if (LOG.isWarnEnabled()) {
                         LOG.warn("get connection timeout retry : " + notFullTimeoutRetryCnt);
@@ -1830,7 +1830,11 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             String errorMessage = buf.toString();
 
             if (createError != null) {
+                if (createError instanceof SQLException) {
+                    throw (SQLException)createError;
+                } else {
                     throw new GetConnectionTimeoutException(errorMessage, createError);
+                }
             } else {
                 throw new GetConnectionTimeoutException(errorMessage);
             }