UnsupportedOperationException thrown when ImmutableMap.copyof(xx) calls putAll in body() of InterfaceRender, which has been deprecated.

java.lang.UnsupportedOperationException
at com.google.common.collect.ImmutableMap.putAll(ImmutableMap.java:350)
at org.opendaylight.mdsal.binding.javav2.java.api.generator.renderers.InterfaceRenderer.body(InterfaceRenderer.java:90)
at org.opendaylight.mdsal.binding.javav2.java.api.generator.renderers.BaseRenderer.generateTemplate(BaseRenderer.java:363)
at org.opendaylight.mdsal.binding.javav2.java.api.generator.InterfaceGenerator.generate(InterfaceGenerator.java:33)
at org.opendaylight.mdsal.binding.javav2.java.api.generator.GeneratorJavaFile.generateTypeToJavaFile(GeneratorJavaFile.java:192)
at org.opendaylight.mdsal.binding.javav2.java.api.generator.GeneratorJavaFile.generateToFile(GeneratorJavaFile.java:106)
at org.opendaylight.mdsal.binding.javav2.java.api.generator.GeneratorJavaFileTest.myGeneratedFilesTest(GeneratorJavaFileTest.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)