Copy Messages Function wont work with Greenmail MimeMessage

[ajayaviyyapu]

I am attaching my piece of code at the end (Test.zip). This code fails at copymessages line pasted below with an exception.

folderInbox.getMailFolder().copyMessages(receivedMessages, folderArchive.getMailFolder());

Exception:-

java.lang.ClassCastException: com.icegreen.greenmail.store.StoredMessage$UidAwareMimeMessage cannot be cast to com.sun.mail.imap.IMAPMessage
at com.sun.mail.imap.Utility.toMessageSet(Utility.java:85)
at com.sun.mail.imap.IMAPFolder.copymoveMessages(IMAPFolder.java:2109)
at com.sun.mail.imap.IMAPFolder.copyMessages(IMAPFolder.java:2018)
at de.tnt.innight.ttms.mail.CheckMailBoxServiceTest.read_EP_Results_With_New_Unprocessed_Email_To_Route_Mail_To_Archiv_Test(CheckMailBoxServiceTest.java:82)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at com.icegreen.greenmail.junit.GreenMailRule$1.evaluate(GreenMailRule.java:63)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Test.zip

[marcelmay]

You use client-side IMAP API with GreenMail server-side messages:

L78: final MimeMessage[] receivedMessages = greenMail.getReceivedMessages(); // Direct access to server-side instances 
...
L82: folderInbox.getMailFolder().copyMessages(receivedMessages, folderArchive.getMailFolder()); // folderInbox wrapping JavaMail-fetched folder? 

Fetch the messages via JavaMail, as JavaMail can only work on JavaMail-'managed' instances:

finalMessage[] receivedMessages  =   folderInbox.getMessages(); // Fetch via JavaMail

[ajayaviyyapu]

Thanks Marcel for responding.

1. Yes folderInbox is nothing but a wrapper on the javax.mail.Folder.

2. I tried to do in the way recommended by you by using the following line.

finalMessage[] receivedMessages = folderInbox.getMessages();

Now i dont even receive messages. When i was using the previous line as mentioned below, I was atleast able to receive the messages. Only the copymessages method was failing.

final MimeMessage[] receivedMessages = greenMail.getReceivedMessages();

Is there anything that needs to be changed when i am using Javax Mail Message instead of Green Mail Message.