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Unable to save process from process-designer after moving it from Eclipse (NPE)
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created by <a href="https://community.jboss.org/people/mcfeber">mcfeber</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/750296#750296">View the full discussion</a>
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<div class="jive-rendered-content"><p>I am using guvnor 5.4.0 Final and process-designer.2.2.1.Final in tomcat 7.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The designer reports:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="error-title">400 Sorry, a technical error occurred. Please contact a system administrator.</p><p class="error-title" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="error-title">The catalina.out has the following (partial) stack trace:</p><p>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</p><p>java.lang.NullPointerException</p><p>        at org.drools.repository.AssetItem.updateContent(AssetItem.java:390)</p><p>        at org.drools.guvnor.server.contenthandler.drools.BPMN2ProcessHandler.storeAssetContent(BPMN2ProcessHandler.java:155)</p><p>        at org.drools.guvnor.server.RepositoryAssetOperations.checkinVersion(RepositoryAssetOperations.java:180)</p><p>        at org.drools.guvnor.server.RepositoryAssetOperations$Proxy$_$$_WeldClientProxy.checkinVersion(RepositoryAssetOperations$Proxy$_$$_WeldClien Proxy.java)</p><p>        at org.drools.guvnor.server.RepositoryAssetService.checkinVersion(RepositoryAssetService.java:155)</p><p>        at org.drools.guvnor.server.RepositoryAssetService$Proxy$_$$_WeldClientProxy.checkinVersion(RepositoryAssetService$Proxy$_$$_WeldClientProxy java)</p><p>        at org.drools.guvnor.server.RepositoryServiceServlet.checkinVersion(RepositoryServiceServlet.java:596)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>After that, any attempt to save the process results in the following message:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="error-title">Error: Unable to save this asset, as it has been recently updated by [admin]</p><p class="error-title" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="error-title">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.</p></div>
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