fix #11974, using static

83eb1a48 · wangdx · 7c8f30b7 · 83eb1a48
Commit 83eb1a48 authored May 18, 2014 by wangdx
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core/src/main/java/org/b3log/solo/processor/UpgradeProcessor.java .../main/java/org/b3log/solo/processor/UpgradeProcessor.java +1 -1

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--- a/core/src/main/java/org/b3log/solo/processor/UpgradeProcessor.java
+++ b/core/src/main/java/org/b3log/solo/processor/UpgradeProcessor.java
@@ -95,7 +95,7 @@ public class UpgradeProcessor {
    /**
     * Whether the email has been sent.
     */
-    private boolean sent = false;
+    private static boolean sent = false;
    /**
     * Language service.