I am using guvnor 5.4.0 Final and process-designer.2.2.1.Final in tomcat 7.
I import (Add... via webdav) a simple bpmn2 process (start,script,stop) from Eclipse, open it in the designer, make a small change (move the icons) and select save.
The designer reports:
400 Sorry, a technical error occurred. Please contact a system administrator.
The catalina.out has the following (partial) stack trace:
ERROR 25-07 11:54:33,597 (LoggingHelper.java:error:74) Service method 'public abstract java.lang.String org.drools.guvnor.client.rpc.AssetService.checkinVersion(org.drools.guvnor.client.rpc.Asset) throws com.google.gwt.user.client.rpc.SerializationException' threw an unexpected exception: java. ang.NullPointerException
java.lang.NullPointerException
at org.drools.repository.AssetItem.updateContent(AssetItem.java:390)
at org.drools.guvnor.server.contenthandler.drools.BPMN2ProcessHandler.storeAssetContent(BPMN2ProcessHandler.java:155)
at org.drools.guvnor.server.RepositoryAssetOperations.checkinVersion(RepositoryAssetOperations.java:180)
at org.drools.guvnor.server.RepositoryAssetOperations$Proxy$_$$_WeldClientProxy.checkinVersion(RepositoryAssetOperations$Proxy$_$$_WeldClien Proxy.java)
at org.drools.guvnor.server.RepositoryAssetService.checkinVersion(RepositoryAssetService.java:155)
at org.drools.guvnor.server.RepositoryAssetService$Proxy$_$$_WeldClientProxy.checkinVersion(RepositoryAssetService$Proxy$_$$_WeldClientProxy java)
at org.drools.guvnor.server.RepositoryServiceServlet.checkinVersion(RepositoryServiceServlet.java:596)
After that, any attempt to save the process results in the following message:
Error: Unable to save this asset, as it has been recently updated by [admin]
I've tried this with validation (after creating the PNG) where the designer reports it as valid and without validation, and the result is the same. Is there a way around this? I need to be able to round-trip processes between Eclipse and guvnor.