老师运行tomcat9.0.41报错

报错信息如下：

24-Mar-2021 15:45:07.753 严重 [http-nio-8080-exec-1] org.apache.coyote.AbstractProtocol$ConnectionHandler.process 无法完成请求的处理
	java.lang.OutOfMemoryError: Java heap space
		at java.util.Arrays.copyOf(Arrays.java:3332)
		at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:124)
		at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:649)
		at java.lang.StringBuffer.append(StringBuffer.java:381)
		at java.io.StringWriter.write(StringWriter.java:77)
		at java.io.StringWriter.append(StringWriter.java:202)
		at java.io.StringWriter.append(StringWriter.java:41)
		at com.google.gson.stream.JsonWriter.beforeValue(JsonWriter.java:645)
		at com.google.gson.stream.JsonWriter.value(JsonWriter.java:532)
		at com.google.gson.internal.bind.TypeAdapters$5.write(TypeAdapters.java:189)
		at com.google.gson.internal.bind.TypeAdapters$5.write(TypeAdapters.java:173)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ArrayTypeAdapter.write(ArrayTypeAdapter.java:95)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:127)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:245)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:127)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:245)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:127)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:245)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:127)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:245)
		at com.google.gson.internal.bind.ObjectTypeAdapter.write(ObjectTypeAdapter.java:107)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ArrayTypeAdapter.write(ArrayTypeAdapter.java:95)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:127)
		at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:245)
		at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)

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