Develop Reference

JSON Path 2.3.0 conflicts with hadoop 2.7 Environment JSON-smart1.2.0.jar

Have a Input of JSON inside HDFS location
It is required to parse the JSON and to aggregate results
To do am using the PIG UDF which are using JSON-path libraries
On the hadoop2.7 environment jar: json-smart1.2, json-path1.2 are hardbinded
Whenever I execute the PIG Mapreduce which throws me below Exception
java.lang.NoSuchFieldError: defaultReader
at com.jayway.jsonpath.spi.json.JsonSmartJsonProvider.<init>(JsonSmartJsonProvider.java:39)
at com.jayway.jsonpath.internal.DefaultsImpl.jsonProvider(DefaultsImpl.java:21)
at com.jayway.jsonpath.Configuration.defaultConfiguration(Configuration.java:174)
at com.jayway.jsonpath.internal.JsonContext.<init>(JsonContext.java:52)
at com.jayway.jsonpath.JsonPath.parse(JsonPath.java:596)
In-order to solve the problem tried below options
Option 1:
Tried setting Registering the json-smart2.3.jar & json-path2.3.0.jar
But no promising results (As the Jar it was referencing is json-path1.2.jar)
Option 2:
Downgrading my module dependencies to json-path1.2.jar
No results
Option 3:
Using Custom classLoaders tried to load the jar of JSON-path2.3.0 jar it
loaded the class went into issues of Org.slf4j binding
There were multiple binding paths identified, But went problems with sun.misc classloader
Failed to instantiate SLF4J LoggerFactory
Reported exception:
java.lang.NullPointerException
at sun.net.util.URLUtil.urlNoFragString(URLUtil.java:50)
at sun.misc.URLClassPath.getLoader(URLClassPath.java:485)
at sun.misc.URLClassPath.getNextLoader(URLClassPath.java:457)
at sun.misc.URLClassPath.access$100(URLClassPath.java:64)
at sun.misc.URLClassPath$1.next(URLClassPath.java:239)
at sun.misc.URLClassPath$1.hasMoreElements(URLClassPath.java:250)
at java.net.URLClassLoader$3$1.run(URLClassLoader.java:601)
at java.net.URLClassLoader$3$1.run(URLClassLoader.java:599)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader$3.next(URLClassLoader.java:598)
at java.net.URLClassLoader$3.hasMoreElements(URLClassLoader.java:623)
at sun.misc.CompoundEnumeration.next(CompoundEnumeration.java:45)
at sun.misc.CompoundEnumeration.hasMoreElements(CompoundEnumeration.java:54)
at org.slf4j.LoggerFactory.findPossibleStaticLoggerBinderPathSet(LoggerFactory.java:238)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:138)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:120)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:331)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:283)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:304)
at com.jayway.jsonpath.internal.JsonContext.<clinit>(JsonContext.java:41)
at com.jayway.jsonpath.internal.ParseContextImpl.parse(ParseContextImpl.java:38)
at com.jayway.jsonpath.JsonPath.parse(JsonPath.java:599)
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 com.optum.pdm.ReferenceDataUpdate.addURL(ReferenceDataUpdate.java:112)
at com.optum.pdm.ReferenceDataUpdate.main(ReferenceDataUpdate.java:124)
Exception in thread "main" java.lang.reflect.InvocationTargetException
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 com.optum.pdm.ReferenceDataUpdate.addURL(ReferenceDataUpdate.java:112)
at com.optum.pdm.ReferenceDataUpdate.main(ReferenceDataUpdate.java:124)
Caused by: java.lang.ExceptionInInitializerError
at com.jayway.jsonpath.internal.ParseContextImpl.parse(ParseContextImpl.java:38)
at com.jayway.jsonpath.JsonPath.parse(JsonPath.java:599)
... 6 more
Caused by: java.lang.IllegalStateException: Unexpected initialization failure
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:167)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:120)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:331)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:283)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:304)
at com.jayway.jsonpath.internal.JsonContext.<clinit>(JsonContext.java:41)
... 8 more
Caused by: java.lang.NullPointerException
at sun.net.util.URLUtil.urlNoFragString(URLUtil.java:50)
at sun.misc.URLClassPath.getLoader(URLClassPath.java:485)
at sun.misc.URLClassPath.getNextLoader(URLClassPath.java:457)
at sun.misc.URLClassPath.access$100(URLClassPath.java:64)
at sun.misc.URLClassPath$1.next(URLClassPath.java:239)
at sun.misc.URLClassPath$1.hasMoreElements(URLClassPath.java:250)
at java.net.URLClassLoader$3$1.run(URLClassLoader.java:601)
at java.net.URLClassLoader$3$1.run(URLClassLoader.java:599)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader$3.next(URLClassLoader.java:598)
at java.net.URLClassLoader$3.hasMoreElements(URLClassLoader.java:623)
at sun.misc.CompoundEnumeration.next(CompoundEnumeration.java:45)
at sun.misc.CompoundEnumeration.hasMoreElements(CompoundEnumeration.java:54)
at org.slf4j.LoggerFactory.findPossibleStaticLoggerBinderPathSet(LoggerFactory.java:238)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:138)
... 13 more
Can some one suggest me to solve this problem, Can find one stackoverflow link where it was telling about weblogic and not a generalized solution which can be applied on Hadoop2.7 also (JSON Parser -java.lang.NoSuchFieldError: defaultReader)

As hadoop environment(Pig, hdfs, Hive & etc) is using json-path-2.3.0, Its better user Mapper logic should use another version "jsonpath-1.0.jar" will solve the problem

Provide the custom implementation to load/parse the JSON so that we can avoid using Json-smart-2.x/1.x of Hadoop/lib
public static void changeJsonPathConfig() {
if (!configChanged) {
Configuration.setDefaults(new Configuration.Defaults() {
private final JsonProvider jsonProvider = new GsonJsonProvider(
new GsonBuilder().serializeNulls().create());
private final MappingProvider mappingProvider = new GsonMappingProvider();
#Override
public JsonProvider jsonProvider() {
return jsonProvider;
}
#Override
public MappingProvider mappingProvider() {
return mappingProvider;
}
#Override
public Set<Option> options() {
return EnumSet.noneOf(Option.class);
}
});
configChanged = true;
}
}

io.sentry.SentryClientFactory - Error creating valid DSN from: 'https://public:private#host:port/1'

I am new to Sentry followed this
and this
and followed the same steps and the code I have an sbt project in which I created sentry.properties file its contents are
dsn=https://public:private#host:port/1
and placed it under src/main/resources when the code runs (the same code given the link above ) following exception is thrown'
18:19:26.745 [run-main-1] DEBUG io.sentry.config.Lookup - Found dsn=https://public:private#host:port/1 in sentry.properties.
18:19:26.754 [run-main-1] ERROR io.sentry.SentryClientFactory - Error creating valid DSN from: 'https://public:private#host:port/1'.
io.sentry.dsn.InvalidDsnException: Invalid DSN, the following properties aren't set '[host, public key]'
at io.sentry.dsn.Dsn.validate(Dsn.java:209) ~[sentry-1.7.16.jar:na]
at io.sentry.dsn.Dsn.<init>(Dsn.java:66) ~[sentry-1.7.16.jar:na]
at io.sentry.dsn.Dsn.<init>(Dsn.java:41) ~[sentry-1.7.16.jar:na]
at io.sentry.SentryClientFactory.resolveDsn(SentryClientFactory.java:73) [sentry-1.7.16.jar:na]
at io.sentry.SentryClientFactory.sentryClient(SentryClientFactory.java:42) [sentry-1.7.16.jar:na]
at io.sentry.Sentry.init(Sentry.java:81) [sentry-1.7.16.jar:na]
at io.sentry.Sentry.init(Sentry.java:44) [sentry-1.7.16.jar:na]
at sentry.SentryDemo$.main(SentryDemo.scala:16) [classes/:na]
at sentry.SentryDemo.main(SentryDemo.scala) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at sbt.Run.invokeMain(Run.scala:67) [run-0.13.16.jar:0.13.16]
at sbt.Run.run0(Run.scala:61) [run-0.13.16.jar:0.13.16]
at sbt.Run.sbt$Run$$execute$1(Run.scala:51) [run-0.13.16.jar:0.13.16]
at sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:55) [run-0.13.16.jar:0.13.16]
at sbt.Run$$anonfun$run$1.apply(Run.scala:55) [run-0.13.16.jar:0.13.16]
at sbt.Run$$anonfun$run$1.apply(Run.scala:55) [run-0.13.16.jar:0.13.16]
at sbt.Logger$$anon$4.apply(Logger.scala:84) [logging-0.13.16.jar:0.13.16]
at sbt.TrapExit$App.run(TrapExit.scala:248) [run-0.13.16.jar:0.13.16]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
[error] (run-main-1) io.sentry.dsn.InvalidDsnException: Invalid DSN, the following properties aren't set '[host, public key]'
io.sentry.dsn.InvalidDsnException: Invalid DSN, the following properties aren't set '[host, public key]'
at io.sentry.dsn.Dsn.validate(Dsn.java:209)
at io.sentry.dsn.Dsn.<init>(Dsn.java:66)
at io.sentry.dsn.Dsn.<init>(Dsn.java:41)
at io.sentry.SentryClientFactory.resolveDsn(SentryClientFactory.java:73)
at io.sentry.SentryClientFactory.sentryClient(SentryClientFactory.java:42)
at io.sentry.Sentry.init(Sentry.java:81)
at io.sentry.Sentry.init(Sentry.java:44)
at sentry.SentryDemo$.main(SentryDemo.scala:16)
at sentry.SentryDemo.main(SentryDemo.scala)
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)
Is there anything I need to add in place of dsnin the properties file ? i am using sentry in my project which is not a web based project

The DSN tells the Sentry SDK which instance of sentry to hit (for example sentry.io) and which project within Sentry the events belong to.
You need to get the DSN from Sentry and add to your project.
In Sentry, in the project settings page, you'll see: Client keys (DSN):
You'll then see the DSN like so:
Copy this (the button on the right), and paste on your sentry.properties replacing the placeholder: https://public:private#host:port/1

Can't retrieve data back from UMLS

I have been trying to run the ctakes-temporal-demo on github.
Currently I have configured everything in eclipse correctly. I have set the correct password and id for UMLS account. When I try to run it I get the following error:
Exception in thread "main" java.lang.Exception: org.apache.uima.resource.ResourceInitializationException: Initialization of annotator class "org.apache.ctakes.dictionary.lookup2.ae.DefaultJCasTermAnnotator" failed. (Descriptor: <unknown>)
at com.optum.cda.Main.main(Main.java:103)
Caused by: org.apache.uima.resource.ResourceInitializationException: Initialization of annotator class "org.apache.ctakes.dictionary.lookup2.ae.DefaultJCasTermAnnotator" failed. (Descriptor: <unknown>)
at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initializeAnalysisComponent(PrimitiveAnalysisEngine_impl.java:252)
at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initialize(PrimitiveAnalysisEngine_impl.java:156)
at org.apache.uima.impl.AnalysisEngineFactory_impl.produceResource(AnalysisEngineFactory_impl.java:94)
at org.apache.uima.impl.CompositeResourceFactory_impl.produceResource(CompositeResourceFactory_impl.java:62)
at org.apache.uima.UIMAFramework.produceResource(UIMAFramework.java:269)
at org.apache.uima.UIMAFramework.produceAnalysisEngine(UIMAFramework.java:387)
at org.apache.uima.analysis_engine.asb.impl.ASB_impl.setup(ASB_impl.java:254)
at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.initASB(AggregateAnalysisEngine_impl.java:431)
at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.initializeAggregateAnalysisEngine(AggregateAnalysisEngine_impl.java:375)
at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.initialize(AggregateAnalysisEngine_impl.java:185)
at org.apache.uima.fit.factory.AnalysisEngineFactory.createEngine(AnalysisEngineFactory.java:711)
at org.apache.uima.fit.factory.AggregateBuilder.createAggregate(AggregateBuilder.java:207)
at com.optum.cda.Main.main(Main.java:101)
Caused by: org.apache.uima.resource.ResourceInitializationException: EXCEPTION MESSAGE LOCALIZATION FAILED: java.util.MissingResourceException: Can't find resource for bundle java.util.PropertyResourceBundle, key Could not construct org.apache.ctakes.dictionary.lookup2.dictionary.UmlsJdbcRareWordDictionary
at org.apache.ctakes.dictionary.lookup2.ae.AbstractJCasTermAnnotator.initialize(AbstractJCasTermAnnotator.java:131)
at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initializeAnalysisComponent(PrimitiveAnalysisEngine_impl.java:250)
... 12 more
Caused by: org.apache.uima.analysis_engine.annotator.AnnotatorContextException: EXCEPTION MESSAGE LOCALIZATION FAILED: java.util.MissingResourceException: Can't find resource for bundle java.util.PropertyResourceBundle, key Could not construct org.apache.ctakes.dictionary.lookup2.dictionary.UmlsJdbcRareWordDictionary
at org.apache.ctakes.dictionary.lookup2.dictionary.DictionaryDescriptorParser.parseDictionary(DictionaryDescriptorParser.java:199)
at org.apache.ctakes.dictionary.lookup2.dictionary.DictionaryDescriptorParser.parseDictionaries(DictionaryDescriptorParser.java:156)
at org.apache.ctakes.dictionary.lookup2.dictionary.DictionaryDescriptorParser.parseDescriptor(DictionaryDescriptorParser.java:128)
at org.apache.ctakes.dictionary.lookup2.ae.AbstractJCasTermAnnotator.initialize(AbstractJCasTermAnnotator.java:129)
... 13 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.apache.ctakes.dictionary.lookup2.dictionary.DictionaryDescriptorParser.parseDictionary(DictionaryDescriptorParser.java:196)
... 16 more
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -7
at java.lang.String.substring(Unknown Source)
at org.apache.ctakes.dictionary.lookup2.util.JdbcConnectionFactory.getConnectionUrl(JdbcConnectionFactory.java:110)
at org.apache.ctakes.dictionary.lookup2.util.JdbcConnectionFactory.getConnection(JdbcConnectionFactory.java:63)
at org.apache.ctakes.dictionary.lookup2.dictionary.JdbcRareWordDictionary.<init>(JdbcRareWordDictionary.java:91)
at org.apache.ctakes.dictionary.lookup2.dictionary.JdbcRareWordDictionary.<init>(JdbcRareWordDictionary.java:72)
at org.apache.ctakes.dictionary.lookup2.dictionary.UmlsJdbcRareWordDictionary.<init>(UmlsJdbcRareWordDictionary.java:31)
... 21 more
Can someone familiar with ctakes help me find out the error. I have tried the mailing list, but no replies.

Finally found a solution ! It seems like the path to the XML descriptor of the dictionary-fast is not reachable. Thus after validating an UMLS user the database setup could not be proceeded.
One of the solution I used was to use a static address for the database (which I will have to change always if the project is moved.). This is not very elegant but works.
Love to hear if anyone has another solution.

Have you put the data of ctakesnorx.script into the database?
Also we do need to update the following attribute values :
<property key="jdbcUrl" value="jdbc:hsqldb:file:org/apache/ctakes/dictionary/lookup/fast/ctakessnorx/ctakessnorx"/>
<property key="jdbcUser" value="sa"/>
<property key="jdbcPass" value=""/>
<property key="rareWordTable" value="cui_terms"/>

ParameterizedAssertionError using EasyTest when test case fails

I wanted to try EasyTest to get input parameters from a CSV and found the following, nicely written, example in a blog posted here:
http://gpcmol.blogspot.com/2013/06/easytest-unit-testing-with-externalized.html
If I follow the example it runs beautifully giving me a nice PDF output as advertised.
However if I cause a test case failure, by changing the last line of input from ",9,-12" to ",9,-13", I no longer get PDF output and get 2 failures rather than one.
The first failure is the correct assertion that the test case fails. The second failure is the following exception:
<testcase name="classMethod" classname="TransformCelciusTest" time="0.0">
<failure message="org.junit.experimental.theories.internal.ParameterizedAssertionError: testToCelsiusConverter(TestInfo [testClass=org.junit.runners.model.TestClass#90bb3e6, dataLoader=org.easetech.easytest.loader.CSVDataLoader#5f4fc5ad, filePaths=[data/temperatureConversionData.csv], methodName=testToCelsiusConverter])" type="org.junit.experimental.theories.internal.ParameterizedAssertionError">org.junit.experimental.theories.internal.ParameterizedAssertionError: testToCelsiusConverter(TestInfo [testClass=org.junit.runners.model.TestClass#90bb3e6, dataLoader=org.easetech.easytest.loader.CSVDataLoader#5f4fc5ad, filePaths=[data/temperatureConversionData.csv], methodName=testToCelsiusConverter])
at org.easetech.easytest.util.RunAftersWithOutputData.writeData(RunAftersWithOutputData.java:157)
at org.easetech.easytest.util.RunAftersWithOutputData.evaluate(RunAftersWithOutputData.java:133)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)
at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
at org.easetech.easytest.loader.CSVDataLoader.writeDataToCSV(CSVDataLoader.java:364)
at org.easetech.easytest.loader.CSVDataLoader.writeData(CSVDataLoader.java:180)
at org.easetech.easytest.util.RunAftersWithOutputData.writeData(RunAftersWithOutputData.java:154)
... 27 more
Caused by: java.lang.NullPointerException
at org.easetech.easytest.loader.CSVDataLoader.writeOutputData(CSVDataLoader.java:382)
at org.easetech.easytest.loader.CSVDataLoader.writeDataToCSV(CSVDataLoader.java:347)
... 29 more
</failure>
</testcase>
Anybody understand how to modify the example so that it properly completes without the ParameterizedAssertionError exception so that the test case failure can be properly reported in the output (PDF)?
I think this is related:
JUnit #Theory : is there a way to throw meaningful exception?

I tested the scenario with EasyTest Core 1.3.1 library and indeed it is an issue(infact a bug) in EasyTest 1.3.1. Specifically there is a NullPointerException in CSVDataLoader because it is expecting the test Duration value but its not present because of test failure. I have to see whats the best solution for this problem. I will keep you posted of the solution. In the mean time, you could try the Excel and XML Data loader. Or if you want a quick solution, you can copy paste the CSVDataLoader and override the line 364 of CSVDataLoader such that it checks if DURATIOn is present and only then call toString on it. Then you can use this Loader as Custom loader in the #DataLoader annotation.
Thanks,
Anuj Kumar

How can I get past this exception involving jvisualvm with oc4j?

Every time I try to start the CPU profiler I get the following exception. I have found reference to this exception in conjunction with Asian languages, but that is not the case here.
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:323)
at sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(InstrumentationImpl.java:348)
Caused by: java.lang.NullPointerException
at org.netbeans.lib.profiler.server.ProfilerActivate15.getArchiveFile(ProfilerActivate15.java:78)
at org.netbeans.lib.profiler.server.ProfilerActivate15.activate(ProfilerActivate15.java:99)
at org.netbeans.lib.profiler.server.ProfilerActivate15.agentmain(ProfilerActivate15.java:64)
... 6 more

I gave up and used the following instead
http://www.jvmmonitor.org/index.html