From 586d5c2211059c7f49946cecf79de82207226f06 Mon Sep 17 00:00:00 2001
From: wenshao <szujobs@hotmail.com>
Date: Thu, 13 Jul 2017 11:14:59 +0800
Subject: [PATCH] bug fixed for proxy.

---
 .../alibaba/druid/proxy/jdbc/PreparedStatementProxyImpl.java   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/com/alibaba/druid/proxy/jdbc/PreparedStatementProxyImpl.java b/src/main/java/com/alibaba/druid/proxy/jdbc/PreparedStatementProxyImpl.java
index ba14ccc403..8cd619c582 100644
--- a/src/main/java/com/alibaba/druid/proxy/jdbc/PreparedStatementProxyImpl.java
+++ b/src/main/java/com/alibaba/druid/proxy/jdbc/PreparedStatementProxyImpl.java
@@ -110,6 +110,9 @@ void setParameter(int jdbcIndex, JdbcParameter parameter) {
         if (parametersSize >= parameters.length) {
             int oldCapacity = parameters.length;
             int newCapacity = oldCapacity + (oldCapacity >> 1);
+            if (newCapacity == 0) {
+                newCapacity = 4;
+            }
 
             parameters = Arrays.copyOf(parameters, newCapacity);
         }