ERROR | Failed to load json schema! java.io.IOException: Stream closed

Question

I am trying to validate a json object against its schema and my schema file is very big (386 lines).

This is my lines of code in java:

public static void jsonSchemValidator() throws Exception {

        ObjectMapper objectMapper = new ObjectMapper();;


        InputStream jsonStream = inputStreamFromClasspath("/json/pickevent1.json");
        InputStream schemaStream = inputStreamFromClasspath("/json/schemaeg.json");

        JsonNode json = objectMapper.readTree(jsonStream);
        JsonNode jsonSchema = objectMapper.readTree(schemaStream);
        JsonSchemaFactory validatorFactory = JsonSchemaFactory.getInstance(SpecVersionDetector.detect(jsonSchema));
        JsonSchema schema = validatorFactory.getSchema(schemaStream);
        Set<ValidationMessage> validationResult = schema.validate(json);
        if (validationResult.isEmpty()) {
            System.out.println("no validation errors :-)");
        } else {
            validationResult.forEach(vm -> System.out.println(vm.getMessage()));
        }
        jsonStream.close();
        schemaStream.close();
    }
}

The code for IndputStream:

  public static InputStream inputStreamFromClasspath(String path) {
        return Utils.class.getResourceAsStream(path);
    }

The above works well for small schema. But it gives an error of:

ERROR | Failed to load json schema!
java.io.IOException: Stream closed

This is the stacktrace:

ERROR | Failed to load json schema!
java.io.IOException: Stream closed
    at java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:170)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:336)
    at com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.ensureLoaded(ByteSourceJsonBootstrapper.java:539)
    at com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.detectEncoding(ByteSourceJsonBootstrapper.java:133)
    at com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.constructParser(ByteSourceJsonBootstrapper.java:256)
    at com.fasterxml.jackson.core.JsonFactory._createParser(JsonFactory.java:1655)
    at com.fasterxml.jackson.core.JsonFactory.createParser(JsonFactory.java:1083)
    at com.fasterxml.jackson.databind.ObjectMapper.readTree(ObjectMapper.java:3056)
    at com.networknt.schema.JsonSchemaFactory.getSchema(JsonSchemaFactory.java:315)
    at com.networknt.schema.JsonSchemaFactory.getSchema(JsonSchemaFactory.java:324)
    at common.Utils.jsonSchemValidator(Utils.java:105)
    at picking.begin.TestAssertionForPickBegin.before(TestAssertionForPickBegin.java:38)
    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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:59)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:458)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:222)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:142)
    at org.testng.TestRunner.beforeRun(TestRunner.java:529)
    at org.testng.TestRunner.run(TestRunner.java:497)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
    at org.testng.TestNG.runSuites(TestNG.java:1049)
    at org.testng.TestNG.run(TestNG.java:1017)
    at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
    at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:110)
com.networknt.schema.JsonSchemaException: java.io.IOException: Stream closed
    at com.networknt.schema.JsonSchemaFactory.getSchema(JsonSchemaFactory.java:319)
    at com.networknt.schema.JsonSchemaFactory.getSchema(JsonSchemaFactory.java:324)
    at common.Utils.jsonSchemValidator(Utils.java:105)
    at picking.begin.TestAssertionForPickBegin.before(TestAssertionForPickBegin.java:38)
    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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:59)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:458)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:222)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:142)
    at org.testng.TestRunner.beforeRun(TestRunner.java:529)
    at org.testng.TestRunner.run(TestRunner.java:497)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
    at org.testng.TestNG.runSuites(TestNG.java:1049)
    at org.testng.TestNG.run(TestNG.java:1017)
    at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
    at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:110)
Caused by: java.io.IOException: Stream closed
    at java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:170)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:336)
    at com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.ensureLoaded(ByteSourceJsonBootstrapper.java:539)
    at com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.detectEncoding(ByteSourceJsonBootstrapper.java:133)
    at com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.constructParser(ByteSourceJsonBootstrapper.java:256)
    at com.fasterxml.jackson.core.JsonFactory._createParser(JsonFactory.java:1655)
    at com.fasterxml.jackson.core.JsonFactory.createParser(JsonFactory.java:1083)
    at com.fasterxml.jackson.databind.ObjectMapper.readTree(ObjectMapper.java:3056)
    at com.networknt.schema.JsonSchemaFactory.getSchema(JsonSchemaFactory.java:315)
    ... 26 more

I am quite new to java. Any suggestions will be helpful. Thank you.