JavaのSmackでKeystoreのIOException

Computer

こんなエラーが出る。

java.io.IOException: Keystore was tampered with, or password was incorrect
	at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:771)
	at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:38)
	at java.security.KeyStore.load(KeyStore.java:1185)
	at org.jivesoftware.smack.ServerTrustManager.<init>(ServerTrustManager.java:63)
	at org.jivesoftware.smack.XMPPConnection.proceedTLSReceived(XMPPConnection.java:1246)
	at org.jivesoftware.smack.PacketReader.parsePackets(PacketReader.java:313)
	at org.jivesoftware.smack.PacketReader.access$000(PacketReader.java:44)
	at org.jivesoftware.smack.PacketReader$1.run(PacketReader.java:76)
Caused by: java.security.UnrecoverableKeyException: Password verification failed
	at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:769)
	... 7 more

runというメソッドの中で呼ばれている例外なのでおそらく別スレッドでパケットを読んでいるときのエラーだと思われる。実際、本スレッドの処理は影響なく実行されていた。

java.io.IOException: Keystore was tampered with, or password was incorrect - Smack Dev - Ignite Realtime Community Forumsに書いてある通りに

sudo keytool -storepasswd -new changeme -keystore /Library/Java/Home/lib/security/cacerts -storepass changeit

を実行したら解決。