Minecraft Forums

I was just going to play some minecraft but when i click on the icon the launching box came up and this is what it said. (WARNING, it is long)

Bootstrap (v5)
Current time is Sep 10, 2013 3:09:20 PM
System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_17'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

FATAL ERROR: java.lang.ClassFormatError: Unknown constant tag 44 in class file sun/security/pkcs/PKCS8Key
at sun.security.rsa.RSAPublicKeyImpl.parseKeyBits(Unknown Source)
at sun.security.x509.X509Key.decode(Unknown Source)
at sun.security.x509.X509Key.decode(Unknown Source)
at sun.security.rsa.RSAPublicKeyImpl.<init>(Unknown Source)
at sun.security.rsa.RSAKeyFactory.generatePublic(Unknown Source)
at sun.security.rsa.RSAKeyFactory.engineGeneratePublic(Unknown Source)
at java.security.KeyFactory.generatePublic(Unknown Source)
at sun.security.x509.X509Key.buildX509Key(Unknown Source)
at sun.security.x509.X509Key.parse(Unknown Source)
at sun.security.x509.CertificateX509Key.<init>(Unknown Source)
at sun.security.x509.X509CertInfo.parse(Unknown Source)
at sun.security.x509.X509CertInfo.<init>(Unknown Source)
at sun.security.x509.X509CertImpl.parse(Unknown Source)
at sun.security.x509.X509CertImpl.<init>(Unknown Source)
at sun.security.provider.X509Factory.engineGenerateCertificate(Unknown Source)
at java.security.cert.CertificateFactory.generateCertificate(Unknown Source)
at sun.security.pkcs.PKCS7.parseSignedData(Unknown Source)
at sun.security.pkcs.PKCS7.parse(Unknown Source)
at sun.security.pkcs.PKCS7.parse(Unknown Source)
at sun.security.pkcs.PKCS7.<init>(Unknown Source)
at sun.security.util.SignatureFileVerifier.<init>(Unknown Source)
at java.util.jar.JarVerifier.processEntry(Unknown Source)
at java.util.jar.JarVerifier.update(Unknown Source)
at java.util.jar.JarFile.initializeVerifier(Unknown Source)
at java.util.jar.JarFile.getInputStream(Unknown Source)
at sun.misc.URLClassPath$JarLoader$2.getInputStream(Unknown Source)
at sun.misc.Resource.cachedInputStream(Unknown Source)
at sun.misc.Resource.getByteBuffer(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.security.jca.ProviderConfig$2.run(Unknown Source)
at sun.security.jca.ProviderConfig$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.security.jca.ProviderConfig.doLoadProvider(Unknown Source)
at sun.security.jca.ProviderConfig.getProvider(Unknown Source)
at sun.security.jca.ProviderList.getProvider(Unknown Source)
at sun.security.jca.ProviderList.getService(Unknown Source)
at sun.security.jca.GetInstance.getInstance(Unknown Source)
at javax.net.ssl.SSLContext.getInstance(Unknown Source)
at javax.net.ssl.SSLContext.getDefault(Unknown Source)
at javax.net.ssl.SSLSocketFactory.getDefault(Unknown Source)
at javax.net.ssl.HttpsURLConnection.getDefaultSSLSocketFactory(Unknown Source)
at javax.net.ssl.HttpsURLConnection.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.&lt;init&gt;(Unknown Source)
at sun.net.www.protocol.https.Handler.openConnection(Unknown Source)
at java.net.URL.openConnection(Unknown Source)
at net.minecraft.bootstrap.Downloader.getConnection(Downloader.java:151)
at net.minecraft.bootstrap.Downloader.run(Downloader.java:46)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:92)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)


Please fix the error and restart.


Dose any one have a fix for this or something that can help out?
Thanks Sammy

Try re installing minecraft?

I already done that.

Nahh that didn't work.
Thanks for the help though

Cool that worked thank you