[mina-sshd] 01/02: [SSHD-1148] Generate a unique thread name for each SftpSubsystem instance

[lgoldstein]

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lgoldstein pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mina-sshd.git

commit 183286327a2212f8a7cb7c7fcb3c7372e4d50ef7
Author: Lyor Goldstein <lgoldst...@apache.org>
AuthorDate: Tue Mar 23 09:30:39 2021 +0200

    [SSHD-1148] Generate a unique thread name for each SftpSubsystem instance
---
 CHANGES.md                                                           | 3 ++-
 .../src/main/java/org/apache/sshd/sftp/server/SftpSubsystem.java     | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 8db2755..0255d8d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -30,6 +30,7 @@
 * [SSHD-1111](https://issues.apache.org/jira/browse/SSHD-1111) Fixed 
SshClientCliSupport compression option detection
 * [SSHD-1125](https://issues.apache.org/jira/browse/SSHD-1125) Added option to 
require immediate close of channel in command `ExitCallback` invocation
 * [SSHD-1127](https://issues.apache.org/jira/browse/SSHD-1127) Consolidated 
`SftpSubsystem` support implementations into `SftpSubsystemConfigurator`
+* [SSHD-1148](https://issues.apache.org/jira/browse/SSHD-1148) Generate a 
unique thread name for each `SftpSubsystem` instance
 
 ## Behavioral changes and enhancements
 
@@ -49,4 +50,4 @@
 * [SSHD-1127](https://issues.apache.org/jira/browse/SSHD-1127) Added 
capability to register a custom receiver for SFTP STDERR channel raw or stream 
data
 * [SSHD-1133](https://issues.apache.org/jira/browse/SSHD-1133) Added 
capability to specify a custom charset for parsing incoming commands to the 
`ScpShell`
 * [SSHD-1133](https://issues.apache.org/jira/browse/SSHD-1133) Added 
capability to specify a custom charset for returning environment variables 
related data from the `ScpShell`
-* [SSHD-1133](https://issues.apache.org/jira/browse/SSHD-1133) Added 
capability to specify a custom charset for handling the SCP protocol textual 
commands and responses
\ No newline at end of file
+* [SSHD-1133](https://issues.apache.org/jira/browse/SSHD-1133) Added 
capability to specify a custom charset for handling the SCP protocol textual 
commands and responses
diff --git 
a/sshd-sftp/src/main/java/org/apache/sshd/sftp/server/SftpSubsystem.java 
b/sshd-sftp/src/main/java/org/apache/sshd/sftp/server/SftpSubsystem.java
index 923ff94..c18714d 100644
--- a/sshd-sftp/src/main/java/org/apache/sshd/sftp/server/SftpSubsystem.java
+++ b/sshd-sftp/src/main/java/org/apache/sshd/sftp/server/SftpSubsystem.java
@@ -88,7 +88,6 @@ public class SftpSubsystem
         extends AbstractSftpSubsystemHelper
         implements Command, Runnable, FileSystemAware, ExecutorServiceCarrier,
         AsyncCommand, ChannelDataReceiver {
-
     protected static final Buffer CLOSE = new ByteArrayBuffer(null, 0, 0);
 
     protected final AtomicBoolean closed = new AtomicBoolean(false);
@@ -122,7 +121,9 @@ public class SftpSubsystem
 
         CloseableExecutorService executorService = 
configurator.getExecutorService();
         if (executorService == null) {
-            this.executorService = 
ThreadUtils.newSingleThreadExecutor(getClass().getSimpleName());
+            // See SSHD-1148 - use different thread name for concurrently 
running instances
+            this.executorService = ThreadUtils.newSingleThreadExecutor(
+                    getClass().getSimpleName() + "-" + 
Math.abs(System.nanoTime() & 0xFFFF));
         } else {
             this.executorService = executorService;
         }