# java.io.EOFException when installing plugins **URL:** \ **Category:** Elasticsearch\ **Created:** [December 13, 2017, 9:00am UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516 "2017-12-13T09:00:21Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![hun](https://avatars.discourse-cdn.com/v4/letter/h/cab0a1/32.png) [@hun](https://discuss.elastic.co/u/hun)\ **Post date:** [December 13, 2017, 9:00am UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/1 "2017-12-13T09:00:21Z")
Hi community, I am trying to install some plugins on es version 5.6.5, but not able to do so due to the following thrown error: ``` java.io.EOFException at java.io.DataInputStream.readUnsignedShort(DataInputStream.java:340) at java.io.DataInputStream.readUTF(DataInputStream.java:589) at java.io.DataInputStream.readUTF(DataInputStream.java:564) at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:731) at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:56) at sun.security.provider.KeyStoreDelegator.engineLoad(KeyStoreDelegator.java:224) at sun.security.provider.JavaKeyStore$DualFormatJKS.engineLoad(JavaKeyStore.java:70) at java.security.KeyStore.load(KeyStore.java:1445) at sun.security.util.AnchorCertificates$1.run(AnchorCertificates.java:61) at sun.security.util.AnchorCertificates$1.run(AnchorCertificates.java:52) at java.security.AccessController.doPrivileged(Native Method) at sun.security.util.AnchorCertificates.(AnchorCertificates.java:52) at sun.security.provider.certpath.AlgorithmChecker.checkFingerprint(AlgorithmChecker.java:214) at sun.security.provider.certpath.AlgorithmChecker.(AlgorithmChecker.java:164) at sun.security.provider.certpath.AlgorithmChecker.(AlgorithmChecker.java:118) at sun.security.validator.SimpleValidator.engineValidate(SimpleValidator.java:157) at sun.security.validator.Validator.validate(Validator.java:260) at sun.security.validator.Validator.validate(Validator.java:236) at sun.security.validator.Validator.validate(Validator.java:205) at javax.crypto.JarVerifier.isTrusted(JarVerifier.java:610) at javax.crypto.JarVerifier.verifySingleJar(JarVerifier.java:530) at javax.crypto.JarVerifier.verifyJars(JarVerifier.java:363) at javax.crypto.JarVerifier.verify(JarVerifier.java:289) at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:164) at javax.crypto.JceSecurity.getVerificationResult(JceSecurity.java:190) at javax.crypto.JceSecurity.canUseProvider(JceSecurity.java:204) at javax.crypto.KeyAgreement.getInstance(KeyAgreement.java:179) at sun.security.ssl.JsseJce.getKeyAgreement(JsseJce.java:269) at sun.security.ssl.JsseJce$EcAvailability.(JsseJce.java:418) at sun.security.ssl.JsseJce.isEcAvailable(JsseJce.java:194) at sun.security.ssl.CipherSuite$KeyExchange.isAvailable(CipherSuite.java:371) at sun.security.ssl.CipherSuite.isAvailable(CipherSuite.java:185) at sun.security.ssl.SSLContextImpl.getApplicableCipherSuiteList(SSLContextImpl.java:304) at sun.security.ssl.SSLContextImpl.access$100(SSLContextImpl.java:42) at sun.security.ssl.SSLContextImpl$AbstractTLSContext.(SSLContextImpl.java:425) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at java.security.Provider$Service.getImplClass(Provider.java:1634) at java.security.Provider$Service.newInstance(Provider.java:1592) at sun.security.jca.GetInstance.getInstance(GetInstance.java:236) at sun.security.jca.GetInstance.getInstance(GetInstance.java:164) at javax.net.ssl.SSLContext.getInstance(SSLContext.java:156) at javax.net.ssl.SSLContext.getDefault(SSLContext.java:96) at javax.net.ssl.SSLSocketFactory.getDefault(SSLSocketFactory.java:122) at javax.net.ssl.HttpsURLConnection.getDefaultSSLSocketFactory(HttpsURLConnection.java:332) at javax.net.ssl.HttpsURLConnection.(HttpsURLConnection.java:289) at sun.net.www.protocol.https.HttpsURLConnectionImpl.(HttpsURLConnectionImpl.java:94) at sun.net.www.protocol.https.Handler.openConnection(Handler.java:62) at sun.net.www.protocol.https.Handler.openConnection(Handler.java:57) at java.net.URL.openConnection(URL.java:979) at org.elasticsearch.plugins.InstallPluginCommand.urlExists(InstallPluginCommand.java:298) at org.elasticsearch.plugins.InstallPluginCommand.getElasticUrl(InstallPluginCommand.java:268) at org.elasticsearch.plugins.InstallPluginCommand.download(InstallPluginCommand.java:224) at org.elasticsearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:216) at org.elasticsearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:202) at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) at org.elasticsearch.cli.MultiCommand.execute(MultiCommand.java:69) at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) at org.elasticsearch.cli.Command.main(Command.java:90) at org.elasticsearch.plugins.PluginCli.main(PluginCli.java:47) Exception in thread "main" java.net.SocketException: java.security.NoSuchAlgorithmException: Error constructing implementation (algorithm: Default, provider: SunJSSE, class: sun.security.ssl.SSLContextImpl$DefaultSSLContext) at javax.net.ssl.DefaultSSLSocketFactory.throwException(SSLSocketFactory.java:248) at javax.net.ssl.DefaultSSLSocketFactory.createSocket(SSLSocketFactory.java:255) at sun.net.www.protocol.https.HttpsClient.createSocket(HttpsClient.java:405) at sun.net.NetworkClient.doConnect(NetworkClient.java:162) at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191) ``` I suspect that it is a keystore problem, but I am not able to reproduce the problem to debug it in the first place. Any help would be appreciated. Cheers, ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [December 13, 2017, 10:09am UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/2 "2017-12-13T10:09:28Z")
I've seen that in the past. Can't remember the thread though. Was most likely a broken installation of Java. What is your `java -version`? ---
**Author:** ![hun](https://avatars.discourse-cdn.com/v4/letter/h/cab0a1/32.png) [@hun](https://discuss.elastic.co/u/hun)\ **Post date:** [December 13, 2017, 10:31am UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/3 "2017-12-13T10:31:45Z")
java version "1.8.0\_151" Java(TM) SE Runtime Environment (build 1.8.0\_151-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode) ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [December 13, 2017, 10:32am UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/4 "2017-12-13T10:32:26Z")
What is your OS? ---
**Author:** ![hun](https://avatars.discourse-cdn.com/v4/letter/h/cab0a1/32.png) [@hun](https://discuss.elastic.co/u/hun)\ **Post date:** [December 13, 2017, 11:28am UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/5 "2017-12-13T11:28:33Z")
Ubuntu 16.04 I was able to solve the problem by uninstalling java and reinstalling, but the problem persisted so I purged java certificates and and reinstalled again. Thanks for your prompt response anyway. Cheers, ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [December 13, 2017, 3:16pm UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/6 "2017-12-13T15:16:37Z")
Exactly what I meant by > Was most likely a broken installation of Java. Glad you solved it. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 10, 2018, 3:17pm UTC](https://discuss.elastic.co/t/java-io-eofexception-when-installing-plugins/111516/7 "2018-01-10T15:17:07Z")
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