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day november 24 2020 add spotbugs support to eclipse maven and jenkins spotbugs successor of findbugs is a tool for static code analysis similar like pmd both tools help to detect bad code constructs which might need improvement as they partly detect different issues they may be well combined and used simultaneously step 1 add eclipse ide support the spotbugs eclipse plugin can be installed directly via the eclipse marketplace after installation projects can be configured to use it from the projects properties context menu navigate to the spotbugs category and enable all checkboxes on the main site further set minimum rank to report to 20 and minimum confidence to report to low once done spotbugs immediately scans the project for problems found issues are displayed as custom markers in editors further they are visible in the bug explorer view as well as in the problems view spotbugs also comes with a label decoration on elements in the package explorer if you do not like these then disable all bug count decorator entries in preferences general appearance label decorations step 2 maven integration integration is done via the spotbugs maven plugin to enable add following section to your master pom properties maven spotbugs version 4 1 4 maven spotbugs version properties build plugins enable spotbugs code analysis plugin groupid com github spotbugs groupid artifactid spotbugs maven plugin artifactid version maven spotbugs version version configuration effort max effort threshold low threshold fork false fork configuration executions execution id spotbugs integration id phase verify phase goals goal spotbugs goal goals execution executions plugin plugins build the execution entry takes care that the spotbugs goal is automatically executed during the verify phase if you remove the execution section you would have to call the spotbugs goal separately mvn spotbugs spotbugs step 3 file exclusions you might have code that you do not want to get checked eg generated files exclusions need to be defined in an xml file a simple filter on package level looks like this xml version 1 0 encoding utf 8 findbugsfilter skip emf generated packages match package name org eclipse skills model match findbugsfilter see the documentation for a full description of filter definitions once defined this file can be used from the spotbugs eclipse plugin as well as from the maven setup to simplify the maven configuration we can add following profile to our master pom profiles profile apply filter when filter file exists id auto spotbugs exclude id activation file exists settings spotbugs exclude xml exists file activation build plugins enable spotbugs exclude filter plugin groupid com github spotbugs groupid artifactid spotbugs maven plugin artifactid version maven spotbugs version version configuration excludefilterfile settings spotbugs exclude xml excludefilterfile configuration plugin plugins build profile profiles it gets automatically enabled when a file settings spotbugs exclude xml exists in the current project step 4 jenkins integration like with pmd we again use the warnings ng plugin on jenkins to track our findings recordissues tools spotbugs userankaspriority true try out the live chart on the skills project final thoughts pmd is smoother on integration as it stores its rulesets in a common file which can be shared by maven and the eclipse plugin spotbugs currently requires to manage rulesets separately still both can be implemented in a way that users automatically get the same warnings in maven and the ide posted by christian pontesegger at 12 00 pm 0 comments labels eclipse java jenkins maven email this blogthis share to x share to facebook share to pinterest friday november 20 2020 add code coverage reports to eclipse maven and jenkins code coverage may provide some insights in your tests they show which classes lines of codes and conditional branches are called by your tests a high percentage of coverage does not automatically mean that your tests are great as you might not have a single assertion in your test code but at least they can give you an impression of dark areas in your code base this article is heavily based on the article of lorenzo bettini on jacoco code coverage and report of multiple eclipse plug in projects so the credits for this setup are his step 1 eclipse ide setup coverage in java projects is typically tracked with the jacoco library the according plugin for eclipse is called eclemma and is available via the eclipse marketplace after installation you have a new run target that adds coverage information to your execution only thing to do is to rerun your unit tests and check out the coverage view multiple coverage sessions can be combined into one that allows to accumulate the results of multiple unit tests into a single coverage report step 2 tycho integration for the next steps i expect that you basically followed my tycho tutorials and have a similar setup first we need to enable jacoco in our builds build plugins enable jacoco code coverage plugin groupid org jacoco groupid artifactid jacoco maven plugin artifactid version 0 8 6 version configuration output file output configuration executions execution id jacoco initialize id phase pre integration test phase goals goal prepare agent goal goals execution executions plugin plugins build tycho surefire executes unit tests in the maven integration test phase therefore we start the agent right before this plugin needs to be active for any plugin of type eclipse plugin test see tycho tutorial but it is safe to put it in the master pom of your releng project now each test run creates coverage reports for analysis purposes we need to merge them into a single one therefore create a new general project in your workspace named releng coverage in the pom xml file we need to add a step to aggregate all reports into one build plugins plugin groupid org jacoco groupid artifactid jacoco maven plugin artifactid version jacoco version version executions execution phase verify phase goals goal report aggregate goal goals execution executions plugin plugins build afterwards we need to define dependencies for the projects containing our source code dependencies code dependencies to show coverage on dependency groupid com example groupid artifactid com example plugin1 artifactid version 0 1 0 snapshot version scope compile scope dependency dependency groupid com example groupid artifactid com example plugin2 artifactid version 0 1 0 snapshot version scope compile scope dependency dependencies further we need dependencies to our test fragments mind the different scope dependencies test dependencies dependency groupid com example groupid artifactid com example project1 test artifactid version 0 1 0 snapshot version scope test scope dependency dependency groupid com example groupid artifactid com example project2 test artifactid version 0 1 0 snapshot version scope test scope dependency dependencies if unsure have a look at a complete pom file finally add the new project as a module to your master pom modules module your project releng coverage module modules the maven build now generates releng coverage target site jacoco aggregate jacoco xml which can be picked up by various tools further you get a nice html report in the same folder for free step 3 jenkins reports while you may directly publish the html report on your jenkins builds i prefer to use the code coverage plugin with a single instruction in your pipeline publishcoverage adapters jacocoadapter path releng com example releng coverage target site jacoco aggregate jacoco xml sourcefileresolver sourcefiles store_last_build it generates nice interactive reports like these you may also have a look at this live report to play around with posted by christian pontesegger at 11 53 am 0 comments labels eclipse java jenkins maven tycho email this blogthis share to x share to facebook share to pinterest wednesday november 18 2020 add pmd support to eclipse maven and jenkins pmd is a static code analyzer that checks your source for problematic code constructs design patterns and code style the code smells reported on grown projects might be huge at first but pmd allows to customize its rules and to adapt them to your needs step 1 add pmd support to eclipse i am using eclipse pmd which can be installed from the eclipse marketplace step 2 define a ruleset pmd needs a ruleset to run against it is stored as an xml file and can be global workspace specific or project specific the choice is up to you for eclipse projects i typically have a releng project to host all my configuration files a default ruleset looks like this xml version 1 0 ruleset name custom rules xmlns http pmd sourceforge net ruleset 2 0 0 xmlns xsi http www w3 org 2001 xmlschema instance xsi schemalocation http pmd sourceforge net ruleset 2 0 0 https pmd sourceforge io ruleset_2_0_0 xsd description custom ruleset description rule ref category java bestpractices xml rule ref category java codestyle xml rule ref category java design xml rule ref category java documentation xml rule ref category java errorprone xml rule ref category java multithreading xml rule ref category java performance xml rule ref category java security xml ruleset store your ruleset somewhere in your workspace or on your file system step 3 enable pmd on project level right click on a project in your eclipse workspace and select properties in pmd section check enable pmd for this project and add the ruleset file stored before the name is not important and can be freely chosen your rules are live now and pmd should immediately start to add warnings to your code and the problems view step 4 refine your rules the default ruleset might report some issues you do want to treat differently in your project therefore you may change rules by setting parameters or disable unwanted rules at all to alter a rule you first have to find it in the list of available rules for disabling you just need to add an exclude node to your rule settings file eg rule ref category java bestpractices xml logger takes care of guarding exclude name guardlogstatement rule configuring a rule can be done like this rule ref category java codestyle xml classnamingconventions properties property name utilityclasspattern value a z a za z0 9 properties rule a full working ruleset as used by one of my projects can be viewed online whenever you change your ruleset you need to recompile your project to get these rules applied you may do so by selecting project clean from the main menu step 5 maven integration integration is done by the maven pmd plugin just add following section to your pom build plugins enable pmd code analysis plugin groupid org apache maven plugins groupid artifactid maven pmd plugin artifactid version 3 13 0 version configuration linkxref false linkxref rulesets path to your ruleset xml rulesets configuration plugin plugins build make sure to adapt the path to your ruleset accordingly afterwards run your build using mvn pmd pmd pmd cpd if you use the maven site plugin you may additionally generate html reports of pmd findings step 6 jenkins integration static reports are nice but charts over time commits are even better in case you use jenkins you may have a look at the warnings ng plugin when you generate yout pmd xml files via maven this plugin can pick them up and draw nice reports in a pipeline build this only needs one line recordissues tools cpd pmdparser to get charts like these try out the live chart on the skills project finally the plugin even allows to compare the amount of issues against a baseline this allows to add quality gates eg to fail the build in case your issue count increases i strongly encourage to enforce such rules otherwise warnings are nice but do get ignored by everybody posted by christian pontesegger at 3 41 pm 1 comments labels eclipse java jenkins maven email this blogthis share to x share to facebook share to pinterest monday november 18 2019 jakarta microprofile rest client in eclipse today we are going to implement a simple rest client for an eclipse rcp application now with jakarta eclipse and all these nice microprofile implementations this should be a piece of cake right now lets see source code for this tutorial is available on github as a single zip archive as a team project set or you can browse the files online step 1 dependencies the eclipse microprofile rest client repository is a good place to get started it points to several implementations at the bottom of the readme unfortunately these implementations do not host any kind of p2 sites which we could use directly so our next stop is eclipse orbit but same situation there this means we need to collect our dependencies manually for my example i used resteasy simply as it was the only one i could get working within reasonable time to fetch dependencies download the latest version of resteasy as the resteasy download package does not contain the rest client api we need to fetch that from another source i found it in the apache cxf project so download the latest version too if you know a better source please let me know in the comments now create a new plug in from existing jar archives click on add external and add all jars from resteasy jaxrs x y z final lib jar further add apache cxf x y z lib jakarta ws rs api x y z jar this plug in now contains all dependencies we need for our client unfortunately also a lot of other stuff we probably do not need but we leave the cleanup for later step 2 define the rest service for our example we will build a client for the petstore service which can be used for testing purposes further it provides a swagger interface to test the rest calls online i recommend to check out the api and play with some commands online and with curl lets write a simple client for the store with its 4 commands the simplest seems to be the inventory command so we will start there create a new java interface package com codeandme restclient resteasy import javax ws rs get import javax ws rs path import javax ws rs produces import javax ws rs core mediatype import javax ws rs core response public interface istoreservice get path v2 store inventory produces mediatype application_json response getinventory everything necessary for resteasy is provided via annotations path defines the path for the command of the rest service get defines that we have to use a get command there exist annotations for post delete put produces finally defines the type of data we do get in response from the server step 3 create an instance of the service create a new class storeservicefactory package com codeandme restclient resteasy import java net uri import java net urisyntaxexception import org jboss resteasy client jaxrs resteasyclient import org jboss resteasy client jaxrs resteasywebtarget import org jboss resteasy client jaxrs internal resteasyclientbuilderimpl public class storeservicefactory public static istoreservice createst...