https://github.com/atomikos/transactions-essentials/issues/217

Error "Recursion detected"
In ProcessA, Service A.a1(operation) remotecall Service B.b1 in
ProcessB, and B.b1 remotecall ServiceA.a2 in ProcessA

transaction failed with "recursive detect" exception when TM in ProcessA
call prepare to itself

public/transactions-remoting/src/main/java/com/atomikos/remoting/DefaultExportingTransactionManager.java

@@ -68,6 +68,12 @@ public void addExtent(Extent extent) throws SysException, IllegalArgumentExcepti
 		if (!ct.getTid().equals(extent.getParentTransactionId())) {
 		    throw new IllegalArgumentException("The supplied extent is for a different transaction: found " + extent.getParentTransactionId()+ " but expected " + ct.getTid());
 		}
+		for (Participant p : extent.getParticipants()) {
+			String rootId = ct.getCompositeCoordinator().getRootId();
+			// detect rccursive call
+			if (rootId != null && p.getURI().endsWith(rootId))
+				return;
+		}
 		ct.getExtent().add(extent);
 		Stack<Participant> participants = extent.getParticipants();
 		for (Participant p : participants) {

public/transactions-remoting/src/main/java/com/atomikos/remoting/twopc/ParticipantAdapter.java

@@ -83,6 +83,10 @@ public int prepare() throws RollbackException, HeurHazardException, HeurMixedExc
 		if (LOGGER.isDebugEnabled()) {
 			LOGGER.logDebug("Calling prepare on " + getURI());
 		}
+		// happens for recursive calls
+		if (cascadeList.isEmpty()) {
+			return Participant.READ_ONLY;
+		}
 		try {
 			int result = client.target(uri).request()
 					.buildPost(Entity.entity(cascadeList, HeaderNames.MimeType.APPLICATION_VND_ATOMIKOS_JSON))

public/transactions/src/main/java/com/atomikos/icatch/imp/CoordinatorImp.java

@@ -515,7 +515,8 @@ public int prepare () throws RollbackException,
         // If a recursive prepare re-enters, then it will see a voting state -> reject.
         // Note that this may also avoid some legal prepares, but only rarely
         if ( getState ().equals ( TxState.PREPARING ) )
-            throw new RollbackException ( "Recursion detected" );
+        	return Participant.READ_ONLY;
+            //throw new RollbackException ( "Recursion detected" );
 
         int ret = Participant.READ_ONLY + 1;
         synchronized ( fsm_ ) {