[2017-04-15 21:50:55] Executing bootstrap tasks
[2017-04-15 21:50:55] Java(TM) SE Runtime Environment 1.8.0_121-b13
[2017-04-15 21:50:55] Product org.eclipse.products.epp.package.java.neon
[2017-04-15 21:50:55] Bundle org.eclipse.oomph.setup 1.7.0.v20170224-1311, build=2932, branch=cc66c993507ade50e4b3a824a3adb4e94c4ac25f
[2017-04-15 21:50:55] Bundle org.eclipse.oomph.setup.core 1.7.0.v20170301-0747, build=2932, branch=cc66c993507ade50e4b3a824a3adb4e94c4ac25f
[2017-04-15 21:50:55] Bundle org.eclipse.oomph.setup.p2 1.7.0.v20170217-1051, build=2932, branch=cc66c993507ade50e4b3a824a3adb4e94c4ac25f
[2017-04-15 21:50:55] Performing P2 Director (Eclipse IDE for Java Developers (Neon))
[2017-04-15 21:50:55] Offline = false
[2017-04-15 21:50:55] Mirrors = true
[2017-04-15 21:50:55] Resolving 23 requirements from 3 repositories to D:\java-neon\eclipse
[2017-04-15 21:50:55] Requirement epp.package.java [4.6.0,4.7.0)
[2017-04-15 21:50:55] Requirement org.eclipse.platform.feature.group [4.6.0,4.7.0)
[2017-04-15 21:50:55] Requirement org.eclipse.rcp.feature.group [4.6.0,4.7.0)
[2017-04-15 21:50:55] Requirement org.eclipse.buildship.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.egit.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.egit.mylyn.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.jdt.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.jgit.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.m2e.feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.m2e.logback.feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.bugzilla_feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.context_feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.git.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.hudson.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.ide_feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.java_feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn.wikitext_feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.mylyn_feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.recommenders.mylyn.rcp.feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.recommenders.rcp.feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.recommenders.snipmatch.rcp.feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.wst.xml_ui.feature.feature.group
[2017-04-15 21:50:55] Requirement org.eclipse.oomph.setup.feature.group
[2017-04-15 21:50:55] Repository http://download.eclipse.org/technology/epp/packages/neon
[2017-04-15 21:50:55] Repository http://download.eclipse.org/releases/neon/201703231000
[2017-04-15 21:50:55] Repository http://download.eclipse.org/oomph/updates/milestone/latest
[2017-04-15 21:51:07] ERROR: org.eclipse.equinox.p2.transport.ecf code=1002 HTTP Server 'Gateway Timeout': http://download.eclipse.org/releases/neon/201703231000/content.xml.xz
ERROR: org.eclipse.ecf.identity code=0 HttpComponents connection error response code 504.
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.openStreams(HttpClientRetrieveFileTransfer.java:667)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:885)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:576)
at org.eclipse.ecf.provider.filetransfer.retrieve.MultiProtocolRetrieveAdapter.sendRetrieveRequest(MultiProtocolRetrieveAdapter.java:106)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.sendRetrieveRequest(FileReader.java:428)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.readInto(FileReader.java:360)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:101)
at org.eclipse.oomph.p2.internal.core.CachingTransport.download(CachingTransport.java:192)
at org.eclipse.oomph.p2.internal.core.CachingTransport.download(CachingTransport.java:255)
at org.eclipse.equinox.internal.p2.repository.CacheManager.updateCache(CacheManager.java:402)
at org.eclipse.equinox.internal.p2.repository.CacheManager.createCacheFromFile(CacheManager.java:132)
at org.eclipse.equinox.internal.p2.metadata.repository.XZedSimpleMetadataRepositoryFactory.getLocalFile(XZedSimpleMetadataRepositoryFactory.java:56)
at org.eclipse.equinox.internal.p2.metadata.repository.XZedSimpleMetadataRepositoryFactory.load(XZedSimpleMetadataRepositoryFactory.java:78)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.oomph.util.ReflectUtil.invokeMethod(ReflectUtil.java:117)
at org.eclipse.oomph.p2.internal.core.CachingRepositoryManager.loadRepository(CachingRepositoryManager.java:396)
at org.eclipse.oomph.p2.internal.core.CachingRepositoryManager.loadRepository(CachingRepositoryManager.java:199)
at org.eclipse.oomph.p2.internal.core.CachingRepositoryManager$Metadata.loadRepository(CachingRepositoryManager.java:463)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl$RepositoryLoader$Worker.perform(ProfileTransactionImpl.java:1613)
at org.eclipse.oomph.util.WorkerPool$Worker.run(WorkerPool.java:428)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

我群里面有Eclipse集合包：479297369

求解啊，楼主解决没有

一样的问题 求解

翻墙安装即可