java.net.SocketException: Unknown proxy type : HTTP

Error:-

network: Connection http://our12apps.bilt.com:8002/OA_JAVA/oracle/apps/fnd/jar/fndforms.jar, isa-ggnfip01.optibilt.com/10.1.0.207:8080java.net.ConnectException: Connection timed out: connect failed: removed from proxy cache
network: Connecting http://our12apps.bilt.com:8002/ with proxy=HTTP @ isa-ggnfip01.optibilt.com/10.1.0.207:8080
network: Cache entry not found [url: http://our12apps.bilt.com:8002/OA_JAVA/oracle/apps/fnd/jar/fndformsi18n.jar, version: null]
network: Connecting http://our12apps.bilt.com:8002/OA_JAVA/oracle/apps/fnd/jar/fndformsi18n.jar with proxy=HTTP @ isa-ggnfip01.optibilt.com/10.1.0.207:8080
network: Connection http://our12apps.bilt.com:8002/OA_JAVA/oracle/apps/fnd/jar/fndformsi18n.jar, isa-ggnfip01.optibilt.com/10.1.0.207:8080java.net.ConnectException: Connection timed out: connect failed: removed from proxy cache
network: Connecting http://our12apps.bilt.com:8002/ with proxy=HTTP @ isa-ggnfip01.optibilt.com/10.1.0.207:8080
java.net.SocketException: Unknown proxy type : HTTP
 at java.net.SocksSocketImpl.connect(Unknown Source)
 at java.net.Socket.connect(Unknown Source)
 at sun.net.NetworkClient.doConnect(Unknown Source)
 at sun.net.www.http.HttpClient.openServer(Unknown Source)
 at sun.net.www.http.HttpClient.openServer(Unknown Source)
 at sun.net.www.http.HttpClient.<init>(Unknown Source)
 at sun.net.www.http.HttpClient.New(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
 at sun.plugin.PluginURLJarFileCallBack.downloadJAR(Unknown Source)
 at sun.plugin.PluginURLJarFileCallBack.access$000(Unknown Source)
 at sun.plugin.PluginURLJarFileCallBack$2.run(Unknown Source)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
 at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
 at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
 at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
 at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
 at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(Unknown Source)
 at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFileInternal(Unknown Source)
 at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(Unknown Source)
 at sun.misc.URLClassPath$JarLoader.getJarFile(Unknown Source)
 at sun.misc.URLClassPath$JarLoader.access$600(Unknown Source)
 at sun.misc.URLClassPath$JarLoader$1.run(Unknown Source)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.misc.URLClassPath$JarLoader.ensureOpen(Unknown Source)
 at sun.misc.URLClassPath$JarLoader.<init>(Unknown Source)
 at sun.misc.URLClassPath$3.run(Unknown Source)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.misc.URLClassPath.getLoader(Unknown Source)
 at sun.misc.URLClassPath.getLoader(Unknown Source)
 at sun.misc.URLClassPath.getResource(Unknown Source)
 at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
 at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
 at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
 at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
 at java.lang.Thread.run(Unknown Source)
network: Cache entry not found [url: http://our12apps.bilt.com:8002/OA_JAVA/oracle/apps/fnd/jar/fndformsi18n.jar, version: null]
network: Connecting http://our12apps.bilt.com:8002/OA_JAVA/oracle/apps/fnd/jar/fndformsi18n.jar with proxy=HTTP @ isa-ggnfip01.optibilt.com/10.1.0.207:8080

Solution:-

Please check your Java proxy setting in controlpanel .