NCopiesOp: NoClassDefFoundError during junit test execution

[arimer]

It looks like our test generation for NCopiesOp broke at some point. Running the generated tests for tuples results in the following stack trace:

java.lang.NoClassDefFoundError: Could not initialize class test.in.expr.os.tuples.Generated_tuples_Test
	at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
	at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160)
	at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:300)
	at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:103)
	at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200)
	at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
	at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:250)
	at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:260)
	at org.junit.runners.BlockJUnit4ClassRunner$2.runReflectiveCall(BlockJUnit4ClassRunner.java:309)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
	at org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:42)
	at org.junit.vintage.engine.VintageTestEngine.executeAllChildren(VintageTestEngine.java:80)
	at org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:72)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
	at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
	at jetbrains.mps.baselanguage.unitTest.execution.launcher.JUnit5TestExecutor.executeWithJUnit5(JUnit5TestExecutor.java:56)
	at jetbrains.mps.baselanguage.unitTest.execution.launcher.JUnit5TestExecutor.executeWithContextClassLoader(JUnit5TestExecutor.java:40)
	at jetbrains.mps.baselanguage.unitTest.execution.launcher.JUnit5TestExecutor.executeSafe(JUnit5TestExecutor.java:33)
	at j.m.e.c.implementation.plugin//jetbrains.mps.execution.configurations.implementation.plugin.plugin.JUnitInProcessRunStarter$1.executeSafe(JUnitInProcessRunStarter.java:65)
	at jetbrains.mps.baselanguage.unitTest.execution.launcher.AbstractJUnitTestMixin.execute(AbstractJUnitTestMixin.java:36)
	at j.m.e.c.implementation.plugin//jetbrains.mps.execution.configurations.implementation.plugin.plugin.JUnitInProcessRunStarter$3.run(JUnitInProcessRunStarter.java:142)
	at com.intellij.openapi.application.impl.ApplicationImpl$2.run(ApplicationImpl.java:265)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
	at com.intellij.util.concurrency.ContextCallable.lambda$call$1(ContextCallable.java:86)
	at com.intellij.util.concurrency.ContextCallable.call(ContextCallable.java:95)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:102)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:102)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:108)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:102)
	at com.intellij.util.concurrency.ContextRunnable.run(ContextRunnable.java:27)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:735)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:732)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:732)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.ExceptionInInitializerError: Exception org.iets3.core.expr.genjava.base.rt.rt.FailException: the argument must be greater than 0 [in thread "ApplicationImpl pooled thread 28"]
	at o.i.c.e.g.base.rt//org.iets3.core.expr.genjava.base.rt.rt.FailException.fail(FailException.java:30)
	at t.i.expr.os//test.in.expr.os.tuples.Generated_tuples_Test.lambda$static$0(Generated_tuples_Test.java:30)
	at t.i.expr.os//test.in.expr.os.tuples.Generated_tuples_Test.<clinit>(Generated_tuples_Test.java:43)