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https://issues.apache.org/jira/browse/NET-643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16141765#comment-16141765
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Vasily commented on NET-643:
----------------------------
Sorry, should have attach it initially:
java.lang.NullPointerException:
at org.apache.commons.net.telnet.TelnetClient._flushOutputStream (Unknown
Source)
at org.apache.commons.net.telnet.TelnetOutputStream.flush (Unknown Source)
at java.io.PrintStream.flush (PrintStream.java:257)
at java.io.PrintStream.close (PrintStream.java:237)
> NPE when closing tellnet stream
> -------------------------------
>
> Key: NET-643
> URL: https://issues.apache.org/jira/browse/NET-643
> Project: Commons Net
> Issue Type: Bug
> Components: Telnet
> Affects Versions: 3.6
> Environment: Observed in Android application. Some people encountered
> similar NPE on desktop years ago:
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=395149
> Reporter: Vasily
>
> our code:
> {code:java}
> try {
> TelnetClient telnetClient = new TelnetClient();
> telnetClient.connect(address, port);
> mInput = new BufferedInputStream(telnetClient.getInputStream());
> mOutput = new PrintStream(telnetClient.getOutputStream());
> BufferedReader br = new BufferedReader(new
> InputStreamReader(this.mInput));
> ... some IO on streams ...
> } catch (IOException e) {
> if (Dbg.DEBUG) {
> Dbg.d(TAG, "telnet exception " + Dbg.getStackTraceString(e));
> }
> return false;
> } finally {
> try {
> if (mInput != null) mInput.close();
> if (mOutput != null) mOutput.close();
> } catch (IOException ignored) {}
> }
> {code}
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