Make jar file ant

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Viewed 17k times. Improve this question. Please add some more details. Will you run the build from inside Eclipse? See also the discussion in the zip task page. This can be either the location of a manifest, or the name of a jar added through a fileset.

Valid values are skip , merge , and mergewithoutmain. Valid values are fail , skip , and create. Valid values are add , preserve , and fail. Unless you specify additional jars with nested indexjars elements, only the contents of this jar will be included in the index. Doesn't have any effect if index is false. The behavior has been changed with Java 5. In order to avoid problems with Ant generated jars on Java 1. The encoding used to read the JAR manifest, when a manifest file is specified.

The task will always use UTF-8 when writing the manifest. Whether the file modification times will be rounded up to the next even number of seconds. Zip archives store file modification times with a granularity of 2 seconds, so the times will either be rounded up or down.

If you round down, the archive will always seem out-of-date when you rerun the task, so the default is to round up. Rounding up may lead to a different type of problems like JSPs inside a web archive that seem to be slightly more recent than precompiled pages, rendering precompilation useless. Non-default level at which file compression should be performed. Set this attribute to true if you really want to preserve the original permission field.

Whether to set the language encoding flag if the encoding is UTF This setting doesn't have any effect if the encoding is not UTF Whether to create Unicode extra fields to store the file names a second time inside the entry's metadata. Possible values are never , always and not-encodeable which will only add Unicode extra fields if the file name cannot. Whether to use UTF-8 and the language encoding flag instead of the specified encoding if a file name cannot be encoded using the specified encoding.

The default target is compress, so when you run the build file the compress target will be executed. Create a directory and name it to antjarexample in any of your local drive. Everything will go inside this directory like: source files, created output files, and the build file. Open the command prompt and navigate to the folder where the build.

If the build file has been typed correctly, then you should see the following output on cmd:. As you saw in the above build file we have added a new target to produce the jar file. But before that, let us see the jar task given below. If we want to make the HelloWorld.