# java.lang.NoClassDefFoundError exception when running "stardog-admin.bat server start" **URL:** \ **Category:** Support\ **Created:** [August 4, 2018, 12:01pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179 "2018-08-04T12:01:34Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![quico14](https://avatars.discourse-cdn.com/v4/letter/q/c57346/32.png) [@quico14](https://community.stardog.com/u/quico14)\ **Post date:** [August 4, 2018, 12:01pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/1 "2018-08-04T12:01:34Z")
Hi I was trying to install Stardog following your [docs](https://www.stardog.com/docs/#_windows), but when I arrive to > stardog-admin.bat server start I get the following error > WARNING: An illegal reflective access operation has occurred > WARNING: Illegal reflective access by com.google.inject.internal.cglib.core.$ReflectUtils$2 (file:/C:/Users/quico/Desktop/Stardog/stardog-5.3.3/client/api/guice-4.0.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte,int,int,java.security.ProtectionDomain) > WARNING: Please consider reporting this to the maintainers of com.google.inject.internal.cglib.core.$ReflectUtils$2 > WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations > WARNING: All illegal access operations will be denied in a future release > Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverter > at com.complexible.common.rdf.model.AbstractStardogLongLiteral.(AbstractStardogLongLiteral.java:25) > at com.complexible.common.rdf.model.StardogLongIntegerLiteral.(StardogLongIntegerLiteral.java:17) > at com.complexible.common.rdf.model.StardogValueFactory.createLiteral(StardogValueFactory.java:436) > at com.complexible.stardog.index.dictionary.ValueInliner$IntegerInliner.extract(ValueInliner.java:431) > at com.complexible.stardog.index.dictionary.ValueInliner.extract(ValueInliner.java:108) > at com.complexible.stardog.index.dictionary.InliningMappingDictionary.getValue(InliningMappingDictionary.java:91) > at com.complexible.stardog.index.dictionary.DelegatingMappingDictionary.getValue(DelegatingMappingDictionary.java:67) > at com.complexible.stardog.security.index.SecurityIndexes.getSecurityIndexVersion(SecurityIndexes.java:176) > at com.complexible.stardog.security.index.SecurityIndexes.initialize(SecurityIndexes.java:83) > at com.complexible.stardog.security.index.IndexSystemSecurityManagerFactory.create(IndexSystemSecurityManagerFactory.java:58) > at com.complexible.stardog.BaseStardogModule.getSystemSecurityManager(BaseStardogModule.java:200) > at com.complexible.stardog.BaseStardogModule$$FastClassByGuice$$920e5968.invoke() > at com.google.inject.internal.ProviderMethod$FastClassProviderMethod.doProvision(ProviderMethod.java:272) > at com.google.inject.internal.ProviderMethod.get(ProviderMethod.java:172) > at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81) > at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53) > at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61) > at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45) > at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) > at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) > at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) > at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145) > at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) > at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38) > at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62) > at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:104) > at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85) > at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267) > at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56) > at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) > at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) > at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) > at com.google.inject.multibindings.Multibinder$RealMultibinder.get(Multibinder.java:375) > at com.google.inject.multibindings.Multibinder$RealMultibinder.get(Multibinder.java:258) > at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81) > at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53) > at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61) > at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45) > at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) > at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) > at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) > at com.google.inject.spi.ProviderLookup$1.get(ProviderLookup.java:104) > at com.google.inject.spi.ProviderLookup$1.get(ProviderLookup.java:104) > at com.google.inject.internal.ProviderMethod.get(ProviderMethod.java:167) > at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81) > at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53) > at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61) > at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45) > at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) > at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) > at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) > at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145) > at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) > at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38) > at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62) > at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:104) > at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85) > at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267) > at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) > at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) > at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) > at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145) > at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) > at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56) > at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) > at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092) > at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) > at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051) > at com.complexible.stardog.Stardog.initKernel(Stardog.java:213) > at com.complexible.stardog.Stardog.(Stardog.java:206) > at com.complexible.stardog.Stardog.(Stardog.java:60) > at com.complexible.stardog.Stardog$StardogBuilder.create(Stardog.java:597) > at com.complexible.stardog.cli.impl.ServerStart.call(ServerStart.java:162) > at com.complexible.stardog.cli.impl.ServerStart.call(ServerStart.java:41) > at com.complexible.stardog.cli.CLIBase.execute(CLIBase.java:55) > at com.complexible.stardog.cli.admin.CLI.main(CLI.java:186) > Caused by: java.lang.ClassNotFoundException: javax.xml.bind.DatatypeConverter > at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source) > at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source) > at java.base/java.lang.ClassLoader.loadClass(Unknown Source) > ... 76 more Thanks for helping. ---
**Author:** ![zachary.whitley](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/zachary.whitley/32/94_2.png) [@zachary.whitley](https://community.stardog.com/u/zachary.whitley)\ **Post date:** [August 5, 2018, 5:40pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/2 "2018-08-05T17:40:36Z")
Try checking to make sure you set the STARDOG\_HOME env variable echo %STARDOG\_HOME% If it’s not set you can set it with set STARDOG\_HOME=C:/Users/quico/Desktop/Stardog/stardog-5.3.3 ---
**Author:** ![pedro](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/pedro/32/108_2.png) [@pedro](https://community.stardog.com/u/pedro)\ **Post date:** [August 6, 2018, 11:56am UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/3 "2018-08-06T11:56:38Z")
Hi Quico, Make sure you are using Java 8, as per our [requirements](https://www.stardog.com/docs/#_requirements). -pedro ---
**Author:** ![quico14](https://avatars.discourse-cdn.com/v4/letter/q/c57346/32.png) [@quico14](https://community.stardog.com/u/quico14)\ **Post date:** [August 6, 2018, 2:22pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/4 "2018-08-06T14:22:18Z")
I have java 10, so, have I to downgrade to 8? Thanks. ---
**Author:** ![quico14](https://avatars.discourse-cdn.com/v4/letter/q/c57346/32.png) [@quico14](https://community.stardog.com/u/quico14)\ **Post date:** [August 6, 2018, 2:24pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/5 "2018-08-06T14:24:47Z")
I have my %STARDOG\_HOME% in “C:\Users\quico\Desktop\Stardog\data”. Have I to change to “C:/Users/quico/Desktop/Stardog/stardog-5.3.3”? ---
**Author:** ![pedro](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/pedro/32/108_2.png) [@pedro](https://community.stardog.com/u/pedro)\ **Post date:** [August 6, 2018, 2:26pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/6 "2018-08-06T14:26:02Z")
Yes, Stardog only supports Java 8 ---
**Author:** ![zachary.whitley](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/zachary.whitley/32/94_2.png) [@zachary.whitley](https://community.stardog.com/u/zachary.whitley)\ **Post date:** [August 6, 2018, 2:28pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/7 "2018-08-06T14:28:35Z")
It should point to wherever you unzipped the Stardog-5.3.3.zip to. (I just picked that path up from your stacktrace) ---
**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\ **Post date:** [August 6, 2018, 2:40pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/8 "2018-08-06T14:40:45Z")
A point of clarification, $STARDOG should point to where you have unzip the binaries… $STARDOG\_HOME should point to the location at which your databases should be stored. They _CAN_ be the same directory, but they don’t have to be. ---
**Author:** ![quico14](https://avatars.discourse-cdn.com/v4/letter/q/c57346/32.png) [@quico14](https://community.stardog.com/u/quico14)\ **Post date:** [August 6, 2018, 3:56pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/9 "2018-08-06T15:56:03Z")
I have finally achieved to start the server downgrading to Java 8, but now I have done CTRL+C to shut down it, and then when I do again "stardog-admin.bat server start" I get nothing. ![Captura](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/1X/6e05e3fc65e86434d18247389c048de43ad50b51.PNG) ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [August 20, 2018, 3:56pm UTC](https://community.stardog.com/t/java-lang-noclassdeffounderror-exception-when-running-stardog-admin-bat-server-start/1179/10 "2018-08-20T15:56:12Z")
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