A general note - most plugins include the PMD jar file, which has the rulesets inside it. So even though the rulesets parameter that some plugins use (i.e., “rulesets/unusedcode.xml”) looks like a filesystem reference, it’s really being used by a getResourceAsStream() call to load it out of the PMD jar file.
BlueJ is a teaching IDE. To install the PMD extension for BlueJ, download the PMDExtension jar file and place it in your bluej/lib/extensions/ directory.
Here’s how to set up PMD with Omnicore’s CodeGuide:
- Download the PMD zip file from here
- Unpack the zip file to your local disk. I put it in /Applications/
- Add the following tool to CodeGuide (Tools->Configure Tools->New):
- Name: PMD
- Kind: Tool for directories
- Executable: /Applications/pmd-bin-5.3.7/bin/run.sh
- Arguments: pmd -d $DIRECTORY_PATH$ -f emacs $USER_ARGUMENTS$
Now you can right click on a source directory, select the PMD tool and a dialog box will appear. Type in the name of a rule set (e.g. unusedcode). PMD is then executed on the directory you selected with the rule set you specified. Since CodeGuide understands the emacs syntax you can click on the file name and CodeGuide will jump to that file and line number.
Note: I set this up on Mac OS X. It should work on other unix variations just the same. Of course you need to change the “Executable” setting above to where your PMD is installed. On Windows you need to use the pmd.bat file instead of pmd.sh.
If you haven’t heard of CodeGuide before, check it out. It’s a great IDE.
To install the PMD plugin for Eclipse:
Alternatively, you can download the latest zip file and follow the above procedures except for using “New local site” and browsing to the downloaded zip file.
To configure PMD, select “Windows”->“Preferences”, then select PMD.
To run PMD, right-click on a project node and select “PMD”->“Check code with PMD”.
To run the duplicate code detector, right-click on a project node and select “PMD”->“Find suspect cut and paste”. The report will be placed in a “reports” directory in a file called “cpd-report.txt”.
To find additional help for other features, please read included help by selecting Help->Help Contents and browse the “How to…” section in the “PMD Plugin Documentation” book.
After installing an update, if you get an Exception such as “java.lang.RuntimeException: Couldn’t find that class xxxxx”, try deleting the ruleset.xml file in the .metadata/plugins/net.sourceforge.pmd.eclipse directory in your workspace.
To get Eclipse to not flag the @SuppressWarnings(“PMD”) annotation, look under the menu headings Java -> Compiler -> Errors/Warnings -> Annotations -> Unhandled Warning Token.
Integration with GNU Emacs is performed through an ELisp package, pmd.el. It supports two commands, “pmd-current-buffer” and “pmd-current-dir”. The output is captured in a compilation buffer which allows the user to “jump” directly to the source code position associated with the PMD warnings.
Here’s how to set up the Gel plugin:
- Download the pmd-gel-[version].zip file
- Close Gel
- Remove any old plugin versions from your gel\plugins directory
- Unzip the new zip file into your gel\plugins directory
- Start Gel
- Go to Tools->Options->Plugin
- Select the PMD plugin and click “Remove”
- Click “Add” and select “net.sourceforge.pmd.gel.PMDPlugin”
- Restart Gel
That’s pretty much it. Now you can open a Java project and click on Plugins->PMD and a configuration panel will pop up. You can pick which ruleset you want to run and you can also pick whether you want to run PMD on the current file or on every source file in your project.
You can use an integrated plugin or just use it as an IDEA “External Tool”.
Amit Dev wrote an integrated plugin for IDEA; you can download that from the IntelliJ plugins site.
Here’s how to set it up as an “External Tool”:
- Open IDEA and go to File->Settings
- Click on the “External Tools” icon
- Click on the Add button
- Fill in the blocks
- Name: PMD
- Description: PMD, good for what ails you.
- Menu: Select the “Main menu”, “Project views”, “Editor menu”, and “Search results” checkboxes.
- Program: $JDKPath$\bin\java.exe
- For the next parameter you’ll need to plug in the location of your PMD installation and the rulesets you want to use
- Parameters: -cp %CLASSPATH%;c:\pmd\lib\pmd-5.3.7.jar;c:\pmd\lib\asm-3.2.jar;c:\pmd\lib\jaxen-1.1.1.jar net.sourceforge.pmd.PMD "$FilePath$" ideaj unusedcode,imports "$Sourcepath$" $FileClass.method $FileName$
That’s pretty much it. Now you can right click on a source directory and select PMD, it’ll run recursively on the source files, and the results should be displayed in a window and hyperlinked into the correct file and line of code. I usually right-click on the message window title bar and unselect “autohide” so the window doesn’t go away every time I fix something in the code window.
IDEA - QAPlug
QAPlug is an Intellij IDEA plugin to manage code quality. It integrates no less than Checkstyle, FindBugs, and PMD.
The plugin is available at http://www.qaplug.com/.
Also available at the JetBrains site, QAPlug-PMD and QAPlug.
To enable this OpenTool in JBuilder:
What you can do:
- Check a single file by bringing up the context menu from the file tab and selecting PMDCheck
- Configure the rulesets that the PMD OpenTool will use by selecting Tools->PMD->Configure PMD
- Check all the files in a project by bringing up the context menu for the project node and selecting PMD Check Project
- Locate duplicate code by right clicking on a package and selection “Check with CPD”
When running PMD, the results will be displayed in the MessageView under a tab called PMD Results. If you click on a violation message within this view, you will be taken to the line in the source code where the violation was detected.
Things still to do:
- Enable selection of individual rules within a rule set (maybe)
- Optional insertion of @todo comments at the point of a violation
- Possibly provide configurable ability to limit the number of violations per rule per file
- Open Configure > Options
- Go to the Tools panel
- Click New > Program
- Browse for PMD’s pmd.bat
- Put quotations around the path if it has spaces.
- Set the initial directory to PMD’s \bin directory
- Check capture output
- Put ‘“$[PrjDir]” emacs’ followed by desired rulesets in the arguments
To run PMD on a project, just pick pmd from the Tools menu.
To install the PMD plugin for JDeveloper:
- JDeveloper 10.1.2: Download the binary release and unzip it into your jdev/lib/ext directory
- JDeveloper 10.1.3 upwards: Click “Help”, click “Check for Updates”
- JDeveloper 10.1.3:
- JDeveloper 11 upwards: Select Update Center: Open Source and Partner Extensions
- Press Next and select the actual PMD Plugin and install it
- Restart JDeveloper
To run the PMD plugin for JDeveloper:
- Open the Tools-&Preferences menu
- Click on the PMD option
- Select a couple of rules to try
- To run PMD, right click on either a file, folder, package, project or workspace and select PMD via Toolbar Icon, Context Menu or File Menu
- Any rule violations should show up in a LogWindow tab at the bottom of the screen
The way I use the JEdit plugin is:
- Dock the ErrorList by going to Utilities->Global Options->Docking and putting ErrorList at the bottom of the screen
- Open the File Browser if it isn’t already open
- Double-click on a source directory
- Select Plugins->PMD->Check directory recursively
Note that you can select individual rules by going to Utilities->Global Options->Plugin Options->PMD. Also, you can change the plugin to prompt you for a directory to check by going to that same menu and selecting the “Ask for Directory” checkbox.
The SQE project includes PMD integration for NetBeans.
- The Java Development Kit, version 1.4.2 (versions 1.4 and higher are acceptable) is properly installed into your machine, and exists in D:\java\jdk\_142\. This means that D:\java\jdk\_142\bin\java.exe exists.
- PMD version 5.0 exists in D:\java\pmd-bin-5.3.7\. This means that D:\java\pmd-bin-5.3.7\lib\pmd-5.3.7.jar (among other jar files in the same directory) exist.
To integrate into TextPad
- In the Configure menu, choose Preferences…. This opens the Preferences dialog
- In the left pane of the Preferences dialog, choose the Tools branch by clicking on the word “Tools”.
- On the far right of the dialog, click on the Add button, and then select Program… from the drop-down. This opens the standard Windows Open File dialog.
- Type D:\java\jdk_142\bin\java.exe and click the Open button. In the center pane of the Preferences dialog, an item “Java” has now been added, and is currently selected.
- Click the word Java, which makes the word editable. Select the entire word, and type “PMD directory”. Press Return.
- Repeat steps three through five, but type “PMD file”, instead of “PMD directory”.
- Click Apply.
- Expand the Tools branch (if not already) by clicking on the ‘+’ directly to its left.
- In the expanded list, select PMD directory. This changes the right side of this dialog to the “tool” form.
- In the “tool” form, enter these parameters:
- Parameters: -classpath D:\java\pmd-bin-5.3.7\lib\pmd-5.3.7.jar;D:\java\pmd-bin-5.3.7\lib\asm-3.2.jar;D:\java\pmd-bin-5.3.7\lib\jaxen-1.1.1.jar net.sourceforge.pmd.PMD -d <i><b>$FileDir</b></i> -f net.sourceforge.pmd.renderers.TextPadRenderer -R E:\directory\my_pmd_ruleset.xml -debug
- Initial Folder: $FileDir
- Save all documents first: Checked
- Capture output: Checked
- All other checkboxes: Unchecked
- Regular expression to match output: ^\([^(]+\)(\([0-9]+\),
- Registers/File: 1
- Registers/Line: 2
- In the expanded list, select PMD file.
- In the “tool” form, enter the same parameters as above, except replace ‘$FileDir’ with ‘$File’, in the Parameters textbox.
- To save your work (truly, given a quirk of TextPad), click on OK, which closes the Preferences dialog. Restart TextPad and re-open the Preferences dialog.
- Go back to both the “PMD directory” and “PMD file” Tools branches, and replace ‘E:\directory\my_pmd_ruleset.xml’ with the ruleset of your choice. For example, basic.
- Go to the Keyboard branch in the left pane (above Tools), which changes the right side to the “keyboard configuration” form.
- In the Categories list box, select Tools.
- In the Command list box, select PMD directory.
- Put your cursor into the Press new shortcut key, and type your desired key command. For example Ctrl+Page Up
- Click Assign.
- In the Command list box, select PMD file.
- Put your cursor into the Press new shortcut key, and type your desired key command. For example Ctrl+Page Down
- Click Assign.
- Save your work again: Click on OK, which closes the Preferences dialog, and then restart TextPad.
To run PMD against a single Java file
- In TextPad, open any Java file.
- Click Ctrl+Page Down. This opens an empty, read-only text document (titled “Command Results”). When PMD completes its analysis, this document will be populated with a listing of violated rules (or “Command completed successfully” indicating no violations).
- Double click any line to go to it.
To run PMD against a directory of Java files
- In TextPad, open any file in the root directory you wish to analyze. Unfortunately, you’ll need to create a dummy file, if no file exists there.
- Click Ctrl+Page Up. This opens an empty, read-only text document (titled “Command Results”). When PMD completes its analysis, this document will be populated with a listing of violated rules (or “Command completed successfully” indicating no violations).
- Double click any line to go to it.
Because directory analysis may take a while, you may choose to cancel this operation. Do so by closing the (blank Command Results) document, and then confirming that, “yes, I do really want to exit the tool”.