java lang NoClassDefFoundError com sun mail util MailLogger for JUnit test case for Java mail

Question

I am using Java Mail API to read and parse emails  It is working fine with Servlet code   Now I am trying to write a JUnit test case for the same purpose  But on line  Session session   Session getDefaultInstance properties   I am getting the following exception   java lang NoClassDefFoundError  com sun mail util MailLogger     at javax mail Session initLogger Session java 227      at javax mail Session  lt init gt  Session java 212      at javax mail Session getDefaultInstance Session java 315      at javax mail Session getDefaultInstance Session java 355      at com vxl appanalytix dataload fromEmail EmailParser parseEmailSubject EmailParser java 44      at com vxl appanalytix controllers controllerClasses GenericEmailServiceClass readEmailAttachments GenericEmailServiceClass java 33      at com vxl appanalytix dataload GenericEmailTestCase test GenericEmailTestCase java 42      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 597      at org junit runners model FrameworkMethod 1 runReflectiveCall FrameworkMethod java 45      at org junit internal runners model ReflectiveCallable run ReflectiveCallable java 15      at org junit runners model FrameworkMethod invokeExplosively FrameworkMethod java 42      at org junit internal runners statements InvokeMethod evaluate InvokeMethod java 20      at org springframework test context junit4 statements RunBeforeTestMethodCallbacks evaluate RunBeforeTestMethodCallbacks java 74      at org springframework test context junit4 statements RunAfterTestMethodCallbacks evaluate RunAfterTestMethodCallbacks java 83      at org springframework test context junit4 statements SpringRepeat evaluate SpringRepeat java 72      at org springframework test context junit4 SpringJUnit4ClassRunner runChild SpringJUnit4ClassRunner java 231      at org junit runners BlockJUnit4ClassRunner runChild BlockJUnit4ClassRunner java 47      at org junit runners ParentRunner 3 run ParentRunner java 231      at org junit runners ParentRunner 1 schedule ParentRunner java 60      at org junit runners ParentRunner runChildren ParentRunner java 229      at org junit runners ParentRunner access 000 ParentRunner java 50      at org junit runners ParentRunner 2 evaluate ParentRunner java 222      at org springframework test context junit4 statements RunBeforeTestClassCallbacks evaluate RunBeforeTestClassCallbacks java 61      at org springframework test context junit4 statements RunAfterTestClassCallbacks evaluate RunAfterTestClassCallbacks java 71      at org junit runners ParentRunner run ParentRunner java 300      at org springframework test context junit4 SpringJUnit4ClassRunner run SpringJUnit4ClassRunner java 174      at org eclipse jdt internal junit4 runner JUnit4TestReference run JUnit4TestReference java 50      at org eclipse jdt internal junit runner TestExecution run TestExecution java 38      at org eclipse jdt internal junit runner RemoteTestRunner runTests RemoteTestRunner java 467      at org eclipse jdt internal junit runner RemoteTestRunner runTests RemoteTestRunner java 683      at org eclipse jdt internal junit runner RemoteTestRunner run RemoteTestRunner java 390      at org eclipse jdt internal junit runner RemoteTestRunner main RemoteTestRunner java 197  Caused by  java lang ClassNotFoundException  com sun mail util MailLogger     at java net URLClassLoader 1 run URLClassLoader java 202      at java security AccessController doPrivileged Native Method      at java net URLClassLoader findClass URLClassLoader java 190      at java lang ClassLoader loadClass ClassLoader java 306      at sun misc Launcher AppClassLoader loadClass Launcher java 301      at java lang ClassLoader loadClass ClassLoader java 247          35 more   Can anyone tell me where I am going wrong

User · Answer

Really it s interesting  You need just use  javax-mail jar of  com sun   not  javax mail   dwonload com sun mail jar

User · Answer

I use the following maven dependencies to get java mail working  The first one includes the javax mail API  with no implementation  and the second one is the SUN implementation of the javax mail API    lt dependency gt       lt groupId gt javax mail lt  groupId gt       lt artifactId gt javax mail-api lt  artifactId gt       lt version gt 1 5 5 lt  version gt   lt  dependency gt   lt dependency gt       lt groupId gt com sun mail lt  groupId gt       lt artifactId gt javax mail lt  artifactId gt       lt version gt 1 5 5 lt  version gt   lt  dependency gt

User · Answer

Download this JAR and add it to your libraries  http   java net projects javamail downloads download javax mail jar

User · Answer

com sun mail util MailLogger is part of JavaMail API  It is already included in EE environment  that s why you can use it on your live server   but it is not included in SE environment   Oracle docs         The JavaMail API is available as an optional package for use with Java   SE platform and is also included in the Java EE platform    99  that you run your tests in SE environment which means what you have to bother about adding it manually to your classpath when running tests   If you re using maven add the following dependency  you might want to change version     lt dependency gt       lt groupId gt com sun mail lt  groupId gt       lt artifactId gt javax mail lt  artifactId gt       lt version gt 1 6 0 lt  version gt   lt  dependency gt

User · Answer

The javax mail-api artifact is only good for compiling against   You actually need to run code  so you need a complete implementation of JavaMail API  Use this    lt dependency gt       lt groupId gt com sun mail lt  groupId gt       lt artifactId gt javax mail lt  artifactId gt       lt version gt 1 6 2 lt  version gt   lt  dependency gt    NOTE  The version number will probably differ  Check the latest version here

User · Answer

Please see http   mvnrepository com artifact javax mail mail   you can download jar or use the maven dependency  depending on your project type  That should pretty much cover it and you won t get a NoClassDefFoundError exception

User · Answer

It happens also if your code is expecting Java Mail 1 4 and your jars are Java Mail 1 3  Happened to me when upgraded Pentaho Kettle  Regards

[junit] java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail

Examples related to junit

Examples related to jakarta-mail