[SSHD-311] NullPointerException on closing ClientSession

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.10.0
• Fix Version/s: 0.13.0
• Environment: IBM JDK 1.6, Windows JDK 1.7
• Assignee: Guillaume Nodet
• Reporter: Benjamin Muschko
• Created: 15/Apr/14 12:58
• Updated: 17/Oct/14 15:37
• Resolved: 17/Oct/14 15:37

Description

We occasionally see the following stack trace triggered by the method call(s) ClientSession.close(false).awaitUninterruptibly();:

java.lang.NullPointerException
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:125)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:121)
    at org.apache.sshd.common.future.DefaultSshFuture.notifyListener(DefaultSshFuture.java:261)
    at org.apache.sshd.common.future.DefaultSshFuture.addListener(DefaultSshFuture.java:212)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:126)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:121)
    at org.apache.sshd.common.future.DefaultSshFuture.notifyListener(DefaultSshFuture.java:261)
    at org.apache.sshd.common.future.DefaultSshFuture.addListener(DefaultSshFuture.java:212)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:126)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:121)
    at org.apache.sshd.common.future.DefaultSshFuture.notifyListener(DefaultSshFuture.java:261)
    at org.apache.sshd.common.future.DefaultSshFuture.addListener(DefaultSshFuture.java:212)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:126)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:121)
    at org.apache.sshd.common.util.CloseableUtils$4.close(CloseableUtils.java:132)
    at org.apache.sshd.common.util.CloseableUtils$AbstractInnerCloseable.doCloseGracefully(CloseableUtils.java:232)
    at org.apache.sshd.common.util.CloseableUtils$AbstractCloseable.close(CloseableUtils.java:190)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:125)
    at org.apache.sshd.common.util.CloseableUtils$4$1.operationComplete(CloseableUtils.java:121)
    at org.apache.sshd.common.util.CloseableUtils$4.close(CloseableUtils.java:132)
    at org.apache.sshd.common.util.CloseableUtils$AbstractInnerCloseable.doCloseGracefully(CloseableUtils.java:232)
    at org.apache.sshd.common.util.CloseableUtils$AbstractCloseable.close(CloseableUtils.java:190)

Issue Links

• depends upon: SSHD-360 Rework CloseableUtils code