I've upgraded Jenkins to version 2.0 and to Excusion Plugin 0.12.
But now Exclusion plugins blocks my Matrix Multi job configurations.

The definition inside the job is:

<org.jvnet.hudson.plugins.exclusion.IdAllocator plugin="Exclusion@0.11">
<ids>
<org.jvnet.hudson.plugins.exclusion.DefaultIdType>
<name>SEMAPHORE_MATRIX_${NODE_NAME}</name>
</org.jvnet.hudson.plugins.exclusion.DefaultIdType>
</ids>
</org.jvnet.hudson.plugins.exclusion.IdAllocator>

On Plugin version 0.12, it fails to load Matrix configurations due to:

Apr 24, 2016 2:40:10 PM jenkins.InitReactorRunner$1 onTaskFailed
SEVERE: Failed Loading job Automation_Matrix_New
java.lang.NullPointerException
at org.jvnet.hudson.plugins.exclusion.IdAllocator.getDescriptor(IdAllocator.java:172)
at hudson.model.Descriptor.toMap(Descriptor.java:986)
at hudson.util.DescribableList.toMap(DescribableList.java:151)
at hudson.matrix.MatrixProject.getBuildWrappers(MatrixProject.java:812)
at hudson.matrix.MatrixConfiguration.getBuildWrappers(MatrixConfiguration.java:358)
at hudson.model.Project.createTransientActions(Project.java:257)
at hudson.model.AbstractProject.updateTransientActions(AbstractProject.java:755)
at hudson.matrix.MatrixConfiguration.updateTransientActions(MatrixConfiguration.java:141)
at hudson.model.AbstractProject.onLoad(AbstractProject.java:339)
at hudson.model.Project.onLoad(Project.java:98)
at hudson.matrix.MatrixConfiguration.onLoad(MatrixConfiguration.java:97)
at hudson.matrix.MatrixProject.loadConfigurations(MatrixProject.java:573)
at hudson.matrix.MatrixProject.loadConfigurations(MatrixProject.java:580)
at hudson.matrix.MatrixProject.loadConfigurations(MatrixProject.java:580)
at hudson.matrix.MatrixProject.rebuildConfigurations(MatrixProject.java:617)
at hudson.matrix.MatrixProject.onLoad(MatrixProject.java:508)
at hudson.model.Items.load(Items.java:327)
at jenkins.model.Jenkins$18.run(Jenkins.java:2812)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$8.runTask(Jenkins.java:1009)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

On version 0.11, it fails to load Matrix configurations due to:

Apr 24, 2016 3:35:30 PM jenkins.InitReactorRunner$1 onTaskFailed
SEVERE: Failed Loading job Automation_Matrix_New
java.lang.IndexOutOfBoundsException: Index: 0, Size: 1
at java.util.ArrayList.rangeCheck(ArrayList.java:653)
at java.util.ArrayList.remove(ArrayList.java:492)
at org.jvnet.hudson.plugins.exclusion.IdAllocator.getDescriptor(IdAllocator.java:173)
at hudson.model.Descriptor.toMap(Descriptor.java:986)
at hudson.util.DescribableList.toMap(DescribableList.java:151)
at hudson.matrix.MatrixProject.getBuildWrappers(MatrixProject.java:812)
at hudson.matrix.MatrixConfiguration.getBuildWrappers(MatrixConfiguration.java:358)
at hudson.model.Project.createTransientActions(Project.java:257)
at hudson.model.AbstractProject.updateTransientActions(AbstractProject.java:755)
at hudson.matrix.MatrixConfiguration.updateTransientActions(MatrixConfiguration.java:141)
at hudson.model.AbstractProject.onLoad(AbstractProject.java:339)
at hudson.model.Project.onLoad(Project.java:98)
at hudson.matrix.MatrixConfiguration.onLoad(MatrixConfiguration.java:97)
at hudson.matrix.MatrixProject.loadConfigurations(MatrixProject.java:573)
at hudson.matrix.MatrixProject.loadConfigurations(MatrixProject.java:580)
at hudson.matrix.MatrixProject.loadConfigurations(MatrixProject.java:580)
at hudson.matrix.MatrixProject.rebuildConfigurations(MatrixProject.java:617)
at hudson.matrix.MatrixProject.onLoad(MatrixProject.java:508)
at hudson.model.Items.load(Items.java:327)
at jenkins.model.Jenkins$18.run(Jenkins.java:2812)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$8.runTask(Jenkins.java:1009)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)