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https://issues.apache.org/jira/browse/NET-224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12608371#action_12608371
]
Niall Pemberton commented on NET-224:
-------------------------------------
This looks like a duplicate of NET-188
> NullPointerException if in ftp-directory are files with creation date Feb 29
> current year (Problem of leap year)
> ----------------------------------------------------------------------------------------------------------------
>
> Key: NET-224
> URL: https://issues.apache.org/jira/browse/NET-224
> Project: Commons Net
> Issue Type: Bug
> Affects Versions: 1.4
> Environment: Java 1.5/1.6
> Reporter: Alexander
>
> 1) Ant code:
> <ftp action="get"
> server="${ftp.server}"
> userid="${ftp.user}"
> password="${ftp.password}"
> remotedir="${ftp.dir}"
> verbose="yes"
> depends="yes">
> <fileset dir="${lib}">
> <include name="*.jar"/>
> </fileset>
> </ftp>
> NullPointerException if in ${ftp.dir} are files with creation date Feb 29
> current year
> 2) Caused:
> Incorrect parse creation date Feb 29 current year
> For java 1.5/1.6:
> Example 1:
> SimpleDateFormat sdf = new SimpleDateFormat("MMM d yy");
> sdf.setLenient(false);
> System.out.println("date=" + sdf.parse("Feb 29 12:14"));
>
> Result:
> date=null;
> If doesn't use command sdf.setLenient(false) then result: date = Sun Mar 01
> 12:14:00 EET 1970
> For java 1.4:
> Result always "date=Sun Mar 01 12:14:00 EET 1970", because for java 1.4
> doesn't throw error NullPointerException
> 3) Sources:
> File:
> commons-net-1.4.1\src\java\org\apache\commons\net\ftp\parser\FTPTimestampParserImpl.java
>
> Caused in function (line 225: this.recentDateFormat.setLenient(false); ):
> public void configure(FTPClientConfig config) {
> ....
> String recentFormatString = config.getRecentDateFormatStr();
> if (recentFormatString == null) {
> this.recentDateFormat = null;
> } else {
> this.recentDateFormat = new
> SimpleDateFormat(recentFormatString, dfs);
> this.recentDateFormat.setLenient(false);
> }
> ....
> }
> 4) StackTrace:
> java.lang.NullPointerException
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:115)
> at org.apache.tools.ant.Task.perform(Task.java:348)
> at org.apache.tools.ant.Target.execute(Target.java:357)
> at org.apache.tools.ant.Target.performTasks(Target.java:385)
> at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
> at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> at
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
> at org.apache.tools.ant.Main.runBuild(Main.java:698)
> at org.apache.tools.ant.Main.startAnt(Main.java:199)
> at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
> at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
> Caused by: java.lang.NullPointerException
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.checkRemoteSensitivity(FTP.java:583)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.forceRemoteSensitivityCheck(FTP.java:552)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scan(FTP.java:231)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1570)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1683)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP.execute(FTP.java:2373)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
> ... 11 more
> --- Nested Exception ---
> java.lang.NullPointerException
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.checkRemoteSensitivity(FTP.java:583)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.forceRemoteSensitivityCheck(FTP.java:552)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scan(FTP.java:231)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1570)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1683)
> at
> org.apache.tools.ant.taskdefs.optional.net.FTP.execute(FTP.java:2373)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
> at org.apache.tools.ant.Task.perform(Task.java:348)
> at org.apache.tools.ant.Target.execute(Target.java:357)
> at org.apache.tools.ant.Target.performTasks(Target.java:385)
> at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
> at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> at
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
> at org.apache.tools.ant.Main.runBuild(Main.java:698)
> at org.apache.tools.ant.Main.startAnt(Main.java:199)
> at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
> at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
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