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java.lang.UnsupportedOperationException: can't load this type of class file	at java.lang.ClassLoader.defineClass(ClassLoader.java:300)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at org.assertj.core.internal.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)	at org.assertj.core.internal.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)	at org.assertj.core.internal.cglib.core.KeyFactory$Generator.create(KeyFactory.java:144)	at org.assertj.core.internal.cglib.core.KeyFactory.create(KeyFactory.java:116)	at org.assertj.core.internal.cglib.core.KeyFactory.create(KeyFactory.java:108)	at org.assertj.core.internal.cglib.core.KeyFactory.create(KeyFactory.java:104)	at org.assertj.core.internal.cglib.proxy.Enhancer.(Enhancer.java:69)	at org.assertj.core.api.SoftProxies.create(SoftProxies.java:34)	at org.assertj.core.api.AbstractSoftAssertions.proxy(AbstractSoftAssertions.java:28)	at org.assertj.core.api.Java6AbstractStandardSoftAssertions.assertThat(Java6AbstractStandardSoftAssertions.java:452)	at com.groupon.test.rc.tests.Java6AssertTest.testSoftAssertions(Java6AssertTest.java:48)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)	at java.util.concurrent.FutureTask.run(FutureTask.java:237)	at java.lang.Thread.run(Thread.java:818)