[1.7.2 Launcher] Will Not Launch, Opens but gets error!

#1 Dec 3, 2013
hunter11153
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Edit: EVERYTHING IS FIXED, THANKS CESTISLIFE FOR ALL YOUR HELP!

Well, A friend of mine was playing minecraft with me perfectly fine last night. Today he gets on, browses youtube, then tries to launch minecraft, and gets this error.

java.lang.NoClassDefFoundError: sun/reflect/generics/tree/FieldTypeSi´natur
at sun.reflect.generics.parser.SignatureParser.parseClassTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseTypeArgument(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseTypeArguments(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parsePackageNameAndSimpleClassTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseClassTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseReturnType(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseMethodTypeSignature(Unknown Source)
at sun.reflect.generics.parser.SignatureParser.parseMethodSig(Unknown Source)
at sun.reflect.generics.repository.ConstructorRepository.parse(Unknown Source)
at sun.reflect.generics.repository.ConstructorRepository.parse(Unknown Source)
at sun.reflect.generics.repository.AbstractRepository.<init>(Unknown Source)
at sun.reflect.generics.repository.GenericDeclRepository.<init>(Unknown Source)
at sun.reflect.generics.repository.ConstructorRepository.<init>(Unknown Source)
at sun.reflect.generics.repository.MethodRepository.<init>(Unknown Source)
at sun.reflect.generics.repository.MethodRepository.make(Unknown Source)
at java.lang.reflect.Method.getGenericInfo(Unknown Source)
at java.lang.reflect.Method.getGenericReturnType(Unknown Source)
at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory.makeCompositeMapping(Unknown Source)
at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory.makeMapping(Unknown Source)
at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory.mappingForType(Unknown Source)
at com.sun.jmx.mbeanserver.ConvertingMethod.<init>(Unknown Source)
at com.sun.jmx.mbeanserver.ConvertingMethod.from(Unknown Source)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.mFrom(Unknown Source)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.mFrom(Unknown Source)
at com.sun.jmx.mbeanserver.MBeanAnalyzer.initMaps(Unknown Source)
at com.sun.jmx.mbeanserver.MBeanAnalyzer.<init>(Unknown Source)
at com.sun.jmx.mbeanserver.MBeanAnalyzer.analyzer(Unknown Source)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.getAnalyzer(Unknown Source)
at com.sun.jmx.mbeanserver.MBeanIntrospector.getPerInterface(Unknown Source)
at com.sun.jmx.mbeanserver.MBeanSupport.<init>(Unknown Source)
at com.sun.jmx.mbeanserver.MXBeanSupport.<init>(Unknown Source)
at javax.management.StandardMBean.construct(Unknown Source)
at javax.management.StandardMBean.<init>(Unknown Source)
at javax.management.StandardEmitterMBean.<init>(Unknown Source)
at java.lang.management.ManagementFactory$2.run(Unknown Source)
at java.lang.management.ManagementFactory$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.lang.management.ManagementFactory.addMXBean(Unknown Source)
at java.lang.management.ManagementFactory.getPlatformMBeanServer(Unknown Source)
at org.apache.logging.log4j.core.jmx.Server.registerMBeans(Server.java:107)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.<init>(Log4jContextFactory.java:59)
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 java.lang.Class.newInstance(Unknown Source)
at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:85)
at net.minecraft.launcher.Launcher.<clinit>(Launcher.java:58)
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 net.minecraft.bootstrap.Bootstrap.startLauncher(Bootstrap.java:240)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:124)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)

DXDiag (REMOVED)

We tried updating java, and removing the whole .minecraft folder. We also re downloaded the launcher. I have no idea whats going on!

Last edited by hunter11153: Dec 3, 2013

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#2 Dec 3, 2013
cestislife
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What version of Java do you have installed? Please be specific about this, (version, architecture, build version). Have you tried uninstalling all prior versions of Java before proceeding to install newer versions?

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#3 Dec 3, 2013
hunter11153
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Quote from cestislife

What version of Java do you have installed? Please be specific about this, (version, architecture, build version). Have you tried uninstalling all prior versions of Java before proceeding to install newer versions?

He has JRE 1.7.0_45, Thats all I know how to check, If you need to know anything else on it, please teach us!

Thanks for helping us!

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#4 Dec 3, 2013
cestislife
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Quote from cestislife

Have you tried uninstalling all prior versions of Java before proceeding to install newer versions?

Do you also have 64-bit Java installed?

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#5 Dec 3, 2013
hunter11153
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Version 45 I believe is 32 bit. Version 25, (another version we have) is 64 bit. I had him uninstall the 32 bit one, which didn't help. Im now having him update the 64 bit one, as it doesn't work at version 25.

Okay! It seems updating the 64 bit version worked! Thank you for all your help!!!!!!!

Last edited by hunter11153: Dec 3, 2013

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