This morning, I'm not able do run Eclipse Indigo whereas yesterday it was working.
I receive this message :
An error has occured. See the log file E:\workspaces\sim.metadata.log
And my .log file displays :
!STACK 0
!MESSAGE An error occurred while automatically activating bundle org.eclipse.core.resources (103).
...
Caused by: java.lang.ClassFormatError: Illegal constant pool index 7436 for method signature in class file org/eclipse/core/internal/resources/MarkerManager
...
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/core/resources/IContainer
...
Caused by: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (103).
...
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.core.resources.ResourcesPlugin.start() of bundle org.eclipse.core.resources.
I ran Eclipse with the clean argument but it's the same.
Thanks for any help
It looks like your eclipse crashed sometime before and is unable to restore the workspace.
You can delete .metadata/.plugins/org.eclipse.core.resources/.snap .
Or
Try using a new workspace. Change the settings in \configuration.settings\org.eclipse.ui.ide.prefs and set SHOW_WORKSPACE_SELECTION_DIALOG to true
After that import all your projects to your workspace.
Try reinstalling Eclipse. The message regarding an illegal constant pool index sounds like a broken .class file. Your settings and workspace should remain intact, but you may need to re-install your plugins (if any).
I suppose you still have your workspace intact.The best and fastest option would be to reinstall eclipse and replace the new workspace with the older one.
Related
I am facing this issue with eclipse (Its eclipse Oxygen) I am unable to run a simple Java program
This happen after I modified the project to be a Maven project.
what I tried so far:
I updated the software using (help > check for updates)
deleted the Workspace, and created a new one.
!ENTRY org.eclipse.core.jobs 4 2 2017-12-21 13:15:48.670
!MESSAGE An internal error occurred during: "Launching MailProcessor".
!STACK 0
java.lang.NullPointerException
at org.eclipse.jdt.launching.JavaRuntime.isModularJava(JavaRuntime.java:1043)
at org.eclipse.jdt.launching.JavaRuntime.isModularConfiguration(JavaRuntime.java:1020)
at org.eclipse.jdt.launching.JavaRuntime.computeJREEntry(JavaRuntime.java:2341)
at org.eclipse.m2e.jdt.internal.launch.MavenRuntimeClasspathProvider.computeUnresolvedClasspath(MavenRuntimeClasspathProvider.java:93)
at org.eclipse.jdt.internal.launching.RuntimeClasspathProvider.computeUnresolvedClasspath(RuntimeClasspathProvider.java:57)
at org.eclipse.jdt.launching.JavaRuntime.computeUnresolvedRuntimeClasspath(JavaRuntime.java:1509)
at org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate.getBootpathExt(AbstractJavaLaunchConfigurationDelegate.java:299)
at org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate.getVMSpecificAttributesMap(AbstractJavaLaunchConfigurationDelegate.java:615)
at org.eclipse.jdt.launching.JavaLaunchDelegate._OT$callOrig(JavaLaunchDelegate.java:71)
at org.objectteams.Team._OT$terminalCallNext(Team.java:598)
at org.objectteams.Team._OT$callNext(Team.java:582)
at org.eclipse.objectteams.otdt.internal.debug.adaptor.launching.JDTLaunchingAdaptor._OT$callNext(JDTLaunchingAdaptor.java:56)
at org.eclipse.objectteams.otdt.internal.debug.adaptor.launching.JDTLaunchingAdaptor._OT$callReplace(JDTLaunchingAdaptor.java:56)
at org.objectteams.Team._OT$callAllBindings(Team.java:557)
at org.eclipse.jdt.launching.JavaLaunchDelegate.callAllBindings(JavaLaunchDelegate.java)
at org.eclipse.jdt.launching.JavaLaunchDelegate.launch(JavaLaunchDelegate.java)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:885)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:739)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1039)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1256)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
I faced a similar issue in the past, you can try the following:
Exit Eclipse
Go to your workspace folder in the file explorer
Look for the .metadata folder and delete it
Re-open Eclipse
Hope it works.
for me it happens when in run configuration I click on configure next to PHP server
Solve it by clicking new instead
I had Similar issue, Just restarted eclipse it works automatically
Finally got solution don't need to delete .metadata or .settings just need to add this in environmental variables In System variables _JAVA_OPTIONS -Xmx1024M
Problems occurred while performing provisioning operation: Profile id SELF is not registered.
Profile id SELF is not registered.
Please share your thought on this Thanks
Part of Error Log:
!ENTRY org.eclipse.epp.logging.aeri.core 2 1 2017-01-07 20:55:23.822
!MESSAGE AERI failed with an error. Please report this error: null ; version: 1.100.0.v20160211-1103
!STACK 0
java.lang.NullPointerException
from run go to the %userprofile% --> C:\users\
go to .p2 folder --- delete all folders/files
run the eclipse ..... close the eclipse ... and start again...
In my case, it was sufficient to delete the *.profile.gz files in
C:\Users\%username%\.p2\org.eclipse.equinox.p2.engine\profileRegistry\<your profile folder>\
(or at least move the files to somewhere else) and restart Eclipse.
I didn't figure out why there seems to be different profile IDs. Maybe because I installed my Eclipse with Oomph, and that was generating some other profile which caused the problem. Just a guess.
All of a sudden I am getting errors in my eclipse grails project (GGTS 3.6.4). I'm wondering if this might be due to codehaus being terminated...
!ENTRY org.eclipse.jdt.core 4 4 2015-06-07 07:47:09.622
!MESSAGE Internal groovy compiler error.
!STACK 0
BUG! exception in phase 'semantic analysis' in source unit '/Users/paul/Documents/GrailsWorkspace/Invoicer/target/work/plugins/fields-1.5.1/grails-app/taglib/grails/plugin/formfields/FormFieldsTagLib.groovy' commencingResolution failed: declaration found, but unexpectedly found no scope for grails.plugin.formfields.FormFieldsTagLib$BeanAndPrefix
at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:1027)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:648)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:597)
at org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.processToPhase(GroovyCompilationUnitDeclaration.java:202)
at org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.resolve(GroovyCompilationUnitDeclaration.java:2202)
at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:827)
at org.eclipse.jdt.internal.compiler.ProcessTaskManager.run(ProcessTaskManager.java:137)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.codehaus.jdt.groovy.internal.compiler.ast.GroovyEclipseBug: commencingResolution failed: declaration found, but unexpectedly found no scope for grails.plugin.formfields.FormFieldsTagLib$BeanAndPrefix
at org.codehaus.jdt.groovy.internal.compiler.ast.JDTResolver.commencingResolution(JDTResolver.java:511)
at org.codehaus.groovy.control.ResolveVisitor.visitClass(ResolveVisitor.java:1283)
at org.codehaus.groovy.control.ResolveVisitor.startResolving(ResolveVisitor.java:167)
at org.codehaus.jdt.groovy.internal.compiler.ast.JDTResolver.startResolving(JDTResolver.java:565)
at org.codehaus.groovy.control.CompilationUnit$1.call(CompilationUnit.java:714)
at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:1018)
... 7 more
I have tried refreshing dependencies as well as removing target and target-eclipse directories.
It seems that Eclipse just lost its mind. I deleted the project then re-imported it. Eclipse told me that it looked like a Grails project but needed to recreate the project file. I allowed it to do so and now it works fine.
got same error (just using Groovy btw) and a project clean did the trick
I have a project with sub-projects (https://github.com/i23098/Collections) that compiles correctly on the command-line. When I try to import the project in Eclipse I get an error and tells me to check the log... Checking it, it has:
!ENTRY org.springsource.ide.eclipse.gradle.core 4 0 2014-11-09 17:03:13.404
!MESSAGE Gradle project hierarchy is inconsistent for '/home/ralmeida/workspace-collections/Collections'
!STACK 0
java.lang.reflect.InvocationTargetException
at org.springsource.ide.eclipse.gradle.core.util.GradleRunnable.run(GradleRunnable.java:113)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
Caused by: org.springsource.ide.eclipse.gradle.core.InconsistenProjectHierarchyException: Gradle project hierarchy is inconsistent for '/home/ralmeida/workspace-collections/Collections'
at org.springsource.ide.eclipse.gradle.core.util.ExceptionUtil.inconsistentProjectHierachy(ExceptionUtil.java:82)
at org.springsource.ide.eclipse.gradle.core.GradleModelProvider$GroupedModelProvider.getCachedModel(GradleModelProvider.java:339)
at org.springsource.ide.eclipse.gradle.core.GradleProject.getGradleModel(GradleProject.java:634)
at org.springsource.ide.eclipse.gradle.core.GradleProject.getSkeletalGradleModel(GradleProject.java:653)
at org.springsource.ide.eclipse.gradle.ui.wizards.GradleImportWizardPageOne$11.doit(GradleImportWizardPageOne.java:516)
at org.springsource.ide.eclipse.gradle.core.util.GradleRunnable.run(GradleRunnable.java:105)
... 1 more
Root exception:
org.springsource.ide.eclipse.gradle.core.InconsistenProjectHierarchyException: Gradle project hierarchy is inconsistent for '/home/ralmeida/workspace-collections/Collections'
at org.springsource.ide.eclipse.gradle.core.util.ExceptionUtil.inconsistentProjectHierachy(ExceptionUtil.java:82)
at org.springsource.ide.eclipse.gradle.core.GradleModelProvider$GroupedModelProvider.getCachedModel(GradleModelProvider.java:339)
at org.springsource.ide.eclipse.gradle.core.GradleProject.getGradleModel(GradleProject.java:634)
at org.springsource.ide.eclipse.gradle.core.GradleProject.getSkeletalGradleModel(GradleProject.java:653)
at org.springsource.ide.eclipse.gradle.ui.wizards.GradleImportWizardPageOne$11.doit(GradleImportWizardPageOne.java:516)
at org.springsource.ide.eclipse.gradle.core.util.GradleRunnable.run(GradleRunnable.java:105)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
Eclipse IDE for Java EE Developers 4.4.1.20140925-1820
Gradle IDE 3.6.2.201410090835-RELEASE (configured to use gradle wrapper at http://services.gradle.org/distributions/gradle-2.1-bin.zip)
Any ideas?
I just spontaneously ran into this problem myself with a working project. After a bit of investigation, I found that an incorrect value was written into file:
projectDir/.settings/gradle/org.springsource.ide.eclipse.gradle.core.prefs
for the key:
org.springsource.ide.eclipse.gradle.rootprojectloc=
I found simply deleting the bogus value corrected the problem in my case
Just last week I installed egit with the plugin manager in eclipse (K). Now, I wanted to install ObjectAid. Only, none of my repositories (even the standard ones) are able to connect.
"Could not find... url"
I already went to preferences->install/update-> reloaded the urls, but then I get an error as well:
Unable to read repository at http://download.eclipse.org/tools/cdt/releases/kepler/content.xml.
Unable to read repository at http://download.eclipse.org/tools/cdt/releases/kepler/content.xml.
Failure initializing default SSL context
I also looked at the network settings, changed "native" to "direct", to no avail.
I know I can just download the plugin and install it manually, but that is cumbersome, I would like the network install to work.
Could it be some sort of "locked" file somewhere?
Update
My git push is also not working (local commit works fine). This is probably related. Strange that the internal browser works though.
Error log
!MESSAGE Provisioning exception
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at http://archive.eclipse.org/tools/cdt/releases/kepler/content.xml.
at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:192)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
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 org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
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.equinox.p2.ui.LoadMetadataRepositoryJob.doLoad(LoadMetadataRepositoryJob.java:117)
at org.eclipse.equinox.p2.ui.LoadMetadataRepositoryJob.runModal(LoadMetadataRepositoryJob.java:102)
at org.eclipse.equinox.internal.p2.ui.sdk.PreloadingRepositoryHandler$2.runModal(PreloadingRepositoryHandler.java:83)
at org.eclipse.equinox.p2.operations.ProvisioningJob.run(ProvisioningJob.java:177)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.lang.IllegalStateException: Failure initializing default SSL context
at org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:211)
at org.apache.http.conn.ssl.SSLSocketFactory.<init>(SSLSocketFactory.java:333)
at org.apache.http.conn.ssl.SSLSocketFactory.getSocketFactory(SSLSocketFactory.java:165)
at org.apache.http.impl.conn.SchemeRegistryFactory.createDefault(SchemeRegistryFactory.java:45)
at org.apache.http.impl.client.AbstractHttpClient.createClientConnectionManager(AbstractHttpClient.java:294)
at org.apache.http.impl.client.AbstractHttpClient.getConnectionManager(AbstractHttpClient.java:445)
at org.apache.http.impl.client.AbstractHttpClient.createHttpContext(AbstractHttpClient.java:274)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:797)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:263)
at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
... 1 more
Caused by: java.security.KeyStoreException: problem accessing trust storejava.io.IOException: Invalid keystore format
at sun.security.ssl.TrustManagerFactoryImpl.engineInit(TrustManagerFactoryImpl.java:75)
at javax.net.ssl.TrustManagerFactory.init(TrustManagerFactory.java:250)
at org.apache.http.conn.ssl.SSLSocketFactory.createSSLContext(SSLSocketFactory.java:190)
at org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:209)
... 11 more
!SUBENTRY 1 org.eclipse.equinox.p2.transport.ecf 4 1002 2013-10-10 10:31:15.936
!MESSAGE Unable to read repository at http://archive.eclipse.org/tools/cdt/releases/kepler/content.xml.
!STACK 0
java.lang.IllegalStateException: Failure initializing default SSL context
at org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:211)
at org.apache.http.conn.ssl.SSLSocketFactory.<init>(SSLSocketFactory.java:333)
at org.apache.http.conn.ssl.SSLSocketFactory.getSocketFactory(SSLSocketFactory.java:165)
at org.apache.http.impl.conn.SchemeRegistryFactory.createDefault(SchemeRegistryFactory.java:45)
at org.apache.http.impl.client.AbstractHttpClient.createClientConnectionManager(AbstractHttpClient.java:294)
at org.apache.http.impl.client.AbstractHttpClient.getConnectionManager(AbstractHttpClient.java:445)
at org.apache.http.impl.client.AbstractHttpClient.createHttpContext(AbstractHttpClient.java:274)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:797)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:263)
at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.security.KeyStoreException: problem accessing trust storejava.io.IOException: Invalid keystore format
at sun.security.ssl.TrustManagerFactoryImpl.engineInit(TrustManagerFactoryImpl.java:75)
at javax.net.ssl.TrustManagerFactory.init(TrustManagerFactory.java:250)
at org.apache.http.conn.ssl.SSLSocketFactory.createSSLContext(SSLSocketFactory.java:190)
at org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:209)
... 11 more
!ENTRY org.eclipse.equinox.p2.ui 4 0 2013-10-10 10:31:22.730
!MESSAGE Unable to read repository at http://download.eclipse.org/releases/kepler/content.xml.
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at http://download.eclipse.org/releases/kepler/content.xml.
at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:192)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
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 org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
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.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:439)
at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:120)
at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:70)
at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:235)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.lang.IllegalStateException: Failure initializing default SSL context
at org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:211)
at org.apache.http.conn.ssl.SSLSocketFactory.<init>(SSLSocketFactory.java:333)
at org.apache.http.conn.ssl.SSLSocketFactory.getSocketFactory(SSLSocketFactory.java:165)
at org.apache.http.impl.conn.SchemeRegistryFactory.createDefault(SchemeRegistryFactory.java:45)
at org.apache.http.impl.client.AbstractHttpClient.createClientConnectionManager(AbstractHttpClient.java:294)
at org.apache.http.impl.client.AbstractHttpClient.getConnectionManager(AbstractHttpClient.java:445)
at org.apache.http.impl.client.AbstractHttpClient.createHttpContext(AbstractHttpClient.java:274)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:797)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:263)
at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
... 1 more
Caused by: java.security.KeyStoreException: problem accessing trust storejava.io.IOException: Invalid keystore format
at sun.security.ssl.TrustManagerFactoryImpl.engineInit(TrustManagerFactoryImpl.java:75)
at javax.net.ssl.TrustManagerFactory.init(TrustManagerFactory.java:250)
at org.apache.http.conn.ssl.SSLSocketFactory.createSSLContext(SSLSocketFactory.java:190)
at org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:209)
... 11 more
!SUBENTRY 1 org.eclipse.equinox.p2.transport.ecf 4 1002 2013-10-10 10:31:22.730
!MESSAGE Unable to read repository at http://download.eclipse.org/releases/kepler/content.xml.
!STACK 0
Could there be a problem with the fact that I also have eclipse juno on this computer? I run it with a different workspace though.
Fantastic! I simply appended the port number 80 to the URL and it works for me!
http://download.eclipse.org:80/releases/kepler
Possible Solutions:
Try starting eclipse with the following argument and add it to eclipse.ini :
-vmargs -Djava.net.preferIPv4Stack=true
Check the port and proxy settings under
Window -> Preferences -> General -> Network Connections
You need to make sure that whatever outgoing port(s) your organization allows, you're using one of those, and enter the settings for any proxy your organization requires. Change the port to a usable port like 80
It is a bug in open jdk 1.7 from the suse repos. So I installed the jdk 1.7 rpm which is offered by Oracle. Be sure that your eclipse points to the right java version
(Window >> Preferences >> Java >> Installed JRE).
I had the same symptoms, on Fedora. Installing plugins worked once, then every source failed on the next attempt.
I saw on a forum post to try adding -clean to eclipse on the command line. Starting with eclipse -clean put me into a mode where I could not install any software, but after a quit and starting eclipse normally, I could install plugins again without any complaints.
Looking around, this flag clears out a bunch internal caches in eclipse. As this was only my second time running eclipse, I wonder if I just had bad luck or if it's typically this shaky.
My antivirus firewall was causing this problem.
After I disabled the firewall of my antivirus, I am able to fetch child of http://download.eclipse.org/releases/mars