mwiede#403 add a warning when Channel.getInputStream() or Channel.get…

…ExtInputStream() is called after Channel.connect().
norrisjeremy · Nov 13, 2023 · d702bda · d702bda
1 parent 063b5d0
commit d702bda
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/main/java/com/jcraft/jsch/Channel.java b/src/main/java/com/jcraft/jsch/Channel.java
@@ -208,6 +208,11 @@ public void setExtOutputStream(OutputStream out, boolean dontclose) {
   }
 
   public InputStream getInputStream() throws IOException {
+    Session _session = this.session;
+    if (_session != null && isConnected() && _session.getLogger().isEnabled(Logger.WARN)) {
+      _session.getLogger().log(Logger.WARN, "getInputStream() should be called before connect()");
+    }
+
     int max_input_buffer_size = 32 * 1024;
     try {
       max_input_buffer_size = Integer.parseInt(getSession().getConfig("max_input_buffer_size"));
@@ -221,6 +226,12 @@ public InputStream getInputStream() throws IOException {
   }
 
   public InputStream getExtInputStream() throws IOException {
+    Session _session = this.session;
+    if (_session != null && isConnected() && _session.getLogger().isEnabled(Logger.WARN)) {
+      _session.getLogger().log(Logger.WARN,
+          "getExtInputStream() should be called before connect()");
+    }
+
     int max_input_buffer_size = 32 * 1024;
     try {
       max_input_buffer_size = Integer.parseInt(getSession().getConfig("max_input_buffer_size"));