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(was java.lang.NullPointerException) (through reference chain: com.chanjet.gov.Student["age"])
java.lang.IllegalStateException: No field named 'schema'	at com.fasterxml.jackson.dataformat.avro.ser.ObjectWriteContext._reportUnknownField(ObjectWriteContext.java:124)	at com.fasterxml.jackson.dataformat.avro.ser.ObjectWriteContext.writeFieldName(ObjectWriteContext.java:67)	at com.fasterxml.jackson.dataformat.avro.AvroGenerator.writeFieldName(AvroGenerator.java:283)	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:670)	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:678)	at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:157)	at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:130)	at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1428)	at com.fasterxml.jackson.databind.ObjectWriter._configAndWriteValue(ObjectWriter.java:1129)	at com.fasterxml.jackson.databind.ObjectWriter.writeValueAsBytes(ObjectWriter.java:1025)	at com.fasterxml.jackson.dataformat.avro.WriteGeneratedObject.testWriteBidResponse(WriteGeneratedObject.java:16)	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:483)	at junit.framework.TestCase.runTest(TestCase.java:176)	at junit.framework.TestCase.runBare(TestCase.java:141)	at junit.framework.TestResult$1.protect(TestResult.java:122)	at junit.framework.TestResult.runProtected(TestResult.java:142)	at junit.framework.TestResult.run(TestResult.java:125)	at junit.framework.TestCase.run(TestCase.java:129)	at junit.framework.TestSuite.runTest(TestSuite.java:252)	at junit.framework.TestSuite.run(TestSuite.java:247)	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)