BPM Build Error after updating from CE 7.2 SP03 to CE 7.2 SP09

Hi experts

We have several process developed on version CE 7.2 SP03. After upgrading to CE 7.2 SP09 most of the processes compile correctly except a couple of them with the error shown below.

I have updated NWDI track to match portal version, I've tried refreshing all mappings and even deleting every task and process in the project to figure out where the error could be, but I always got the same error.

BC-BMT-BPM-SRV com.sap.tc.glx.BpemTask execute() - Initiating data mapping validation.

Error: H:\ws7290\vendors.jdi\0\t2\5F8F7BE32A45149E8A44E8A75ACADC7E\default\logs\build.xml:81: java.lang.NullPointerException

at org.apache.tools.ant.Task.perform(Task.java:373)

at org.apache.tools.ant.Target.execute(Target.java:341)

at org.apache.tools.ant.Target.performTasks(Target.java:369)

at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)

at org.apache.tools.ant.Project.executeTarget(Project.java:1185)

at com.sap.tc.buildplugin.techdev.ant.util.AntRunner.run(AntRunner.java:114)

at com.sap.tc.buildplugin.DefaultAntBuildAction.execute(DefaultAntBuildAction.java:57)

at com.sap.tc.buildplugin.DefaultPlugin.handleBuildStepSequence(DefaultPlugin.java:195)

at com.sap.tc.buildplugin.DefaultPlugin.performBuild(DefaultPlugin.java:167)

at com.sap.tc.buildplugin.DefaultPluginV3Delegate$BuildRequestHandler.handle(DefaultPluginV3Delegate.java:66)

at com.sap.tc.buildplugin.DefaultPluginV3Delegate.requestV3(DefaultPluginV3Delegate.java:48)

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 com.sap.tc.buildtool.v2.impl.PluginHandler2.maybeInvoke(PluginHandler2.java:403)

at com.sap.tc.buildtool.v2.impl.PluginHandler2.request(PluginHandler2.java:149)

at com.sap.tc.buildtool.v2.impl.PluginHandler2.build(PluginHandler2.java:87)

at com.sap.tc.buildtool.PluginHandler2Wrapper.execute(PluginHandler2Wrapper.java:59)

at com.sap.tc.devconf.internal.DCProxyMake.make(DCProxyMake.java:319)

at com.sap.tc.devconf.internal.DCProxy.make(DCProxy.java:1448)

at com.sap.tc.devconf.internal.DCProxy.make(DCProxy.java:1430)

at com.sap.tc.devconf.internal.DCProxy.make(DCProxy.java:3891)

at com.sap.ide.dii05.lib.internal.commands.dc.BuildJob.build(BuildJob.java:370)

at com.sap.ide.dii05.lib.internal.commands.dc.BuildJob.doInWorkerThread(BuildJob.java:181)

at com.sap.ide.dii05.util.api.job.JdiJob$1.doInWorkerThread(JdiJob.java:77)

at com.sap.ide.dii05.util.internal.job.InternalJdiJob$3$1.run(InternalJdiJob.java:199)

at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)

at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1782)

at com.sap.ide.dii05.util.internal.job.InternalJdiJob$3.run(InternalJdiJob.java:208)

at com.sap.ide.dii05.util.internal.job.BusyBackgroundIndicator.showWhile(BusyBackgroundIndicator.java:74)

at com.sap.ide.dii05.util.internal.job.InternalJdiJob.internalRun(InternalJdiJob.java:189)

at com.sap.ide.dii05.util.internal.job.InternalDiiJob.runInternal(InternalDiiJob.java:306)

at com.sap.ide.dii05.util.internal.job.InternalDiiJob.runR(InternalDiiJob.java:204)

at com.sap.ide.dii05.util.internal.job.InternalDiiJob.run(InternalDiiJob.java:192)

at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Caused by: java.lang.NullPointerException

at com.sap.glx.paradigmInterface.util.BaseMappingsUtil.getMappingScope(BaseMappingsUtil.java:188)

at com.sap.glx.paradigmInterface.util.BaseMappingsUtil.getScope(BaseMappingsUtil.java:175)

at com.sap.glx.paradigmInterface.util.ContextFactory.createGlobalContextForMappableObject(ContextFactory.java:291)

at com.sap.glx.paradigmInterface.mappings.MappableObjectContextProvider.createMappingContext(MappableObjectContextProvider.java:23)

at com.sap.glx.paradigmInterface.mappings.MappingContextProvider.createMappingContext(MappingContextProvider.java:43)

at com.sap.glx.paradigmInterface.mappings.MappingContextProvider.getMappingContext(MappingContextProvider.java:26)

at com.sap.glx.paradigmInterface.mappings.TransformationContextProvider.getMappingContext(TransformationContextProvider.java:37)

at com.sap.mapping.dtmodel.validation.CachingContextProvider$3.getUncachedValue(CachingContextProvider.java:58)

at com.sap.mapping.dtmodel.validation.CachingContextProvider$3.getUncachedValue(CachingContextProvider.java:54)

at com.sap.mapping.dtmodel.validation.CachingContextProvider$Cache.get(CachingContextProvider.java:137)

at com.sap.mapping.dtmodel.validation.CachingContextProvider.getMappingContext(CachingContextProvider.java:88)

at com.sap.mapping.dtmodel.validation.impl.MappingValidator.validate(MappingValidator.java:52)

at com.sap.mapping.dtmodel.validation.impl.MappingValidator.validate(MappingValidator.java:34)

at com.sap.glx.paradigmInterface.bpmn.compiler.mapping.DataMappingValidator.validate(DataMappingValidator.java:111)

at com.sap.glx.paradigmInterface.bpmn.compiler.mapping.DataMappingValidator.validate(DataMappingValidator.java:103)

at com.sap.glx.paradigmInterface.bpmn.compiler.mapping.DataMappingValidator.validateMappings(DataMappingValidator.java:90)

at com.sap.glx.paradigmInterface.bpmn.compiler.mapping.DataMappingValidator.validate(DataMappingValidator.java:71)

at com.sap.tc.glx.MappingValidator.validate(MappingValidator.java:72)

at com.sap.tc.glx.BpemTask.execute(BpemTask.java:219)

at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)

at org.apache.tools.ant.Task.perform(Task.java:364)

... 35 more

--- Nested Exception ---

java.lang.NullPointerException