eclipse的运行错误，jdk安好了，环境变量也配置好了，双击运行eclipse.exe报错，日志里写的是：

!SESSION 2012-02-13 16:23:52.096 -----------------------------------------------
eclipse.buildId=M20100909-0800
java.version=1.6.0_17
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CN
Command-line arguments: -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.equinox.p2.reconciler.dropins 4 0 2012-02-13 16:23:58.782
!MESSAGE
!STACK 0
org.osgi.framework.BundleException: 无法解析束。原因：org.eclipse.equinox.p2.reconciler.dropins_1.1.0.v20100525 [83]
at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1317)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1301)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:319)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)

!ENTRY org.eclipse.osgi 2 0 2012-02-13 16:23:58.866
!MESSAGE 由于未解析以下根约束，所以未解析一个或多个束：
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-02-13 16:23:58.866
!MESSAGE 未解析 bundle reference:file:plugins/org.eclipse.jdt.junit.runtime_3.4.200.v20100526-0800.jar。
!SUBENTRY 2 org.eclipse.jdt.junit.runtime 2 0 2012-02-13 16:23:58.866
!MESSAGE 缺少必需的 bundle org.junit_3.8.2。
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-02-13 16:23:58.866