Myeclipse 8.6总自己关闭 每次启动都会报如下错误

Myeclipse部署项目时，tomcat
tomcat一直提示Deployment is out of date due to changes in the underlying project contents. You'll need to manually 'Redeploy' the project to update the deployed archive.
重新部署也没用

MyEclipse building 报内存溢出 myeclipse.ini这个文件也改了
MyEclipse has detected that less than 5% of the 341MB of PS Old Gen (Heap
memory) space remains.
It is strongly recommended that you exit and restart MyEclipse with new
virtual machine memory
parameters to increase this memory; failure to do so can result in data loss.
Recommended memory arguments:
-vmargs
-Xmx768m
-XX:MaxPermSize=384m
-XX:ReservedCodeCacheSize=64m

我用MyEclipse建了一个留言板写完留言提交时只出现This is class action.LiuYan,using the POST method
只出现这一行字,你知道怎么回事吗?

英语翻译
中文：本系统是基于B/S模式,以SQL Server作为后台数据库,用Myeclipse作为开发工具进行开发,并采用SSH框架和Tomcat服务器.
英文：Based on B/S model,SQL server as the database,Myeclipse as development instrument,SSH as frame and Tomcat as server,the system is developed.
----------------------------
上面的英文翻译是我自己写的有什么语法和时态等不合适的请高手给重新整理一下.
切忌：不要用各种翻译工具,因为我已经用过了.你粘贴上来我也不会给你分的.
2楼和3楼的大哥都是用的GOOGLE翻译。请拿出来真的水平来！

Myeclipse开发：ORA-12505,TNS:listener does not currently know of SID given in connect descriptor.
开发环境：Myeclipse 6.5,Tomcat 5.5,oracle 10g,数据库服务器在IP为192.168.10.10的机子上,用户为：username.密码是：password,数据库实例为：test.
启动Tomcat时报错,错误信息如下：
[main] ERROR:org.hibernate.util.JDBCExceptionReporter#logExceptions :Cannot create PoolableConnectionFactory (Listener refused the connection with the following error:
ORA-12505,TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
localhost:1521:mydb
)
(16 ms) [main] WARN :org.hibernate.cfg.SettingsFactory#buildSettings :Could not obtain connection metadata
org.apache.commons.dbcp.SQLNestedException:Cannot create PoolableConnectionFactory (Listener refused the connection with the following error:
ORA-12505,TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
localhost:1521:mydb
)
我在content.xml中的配置如下：
name="orcl"
type="javax.sql.DataSource"
maxActive="20"
maxIdle="2"
username="username"
maxWait="500000"
validationQuery="select 1 from dual"
driverClassName="oracle.jdbc.driver.OracleDriver"
password="password"
url="jdbc:oracle:thin:@192.168.10.10:1521:test"/>
而且本机上也没有mydb的用户
请问是什么原因引起的?应该怎么解决?
而在另外一台机子上一样的项目文件,却没有报出这个错误……

myeclipse点击一个括号之后它相应的括号被一个矩形框包着
那个矩形框的颜色怎样改变?或者让它变得容易发现一些

在使用MyEclipse,从Oracle数据库进行逆向工程的时候出错,我使用的是JPA,
错误为：
ENTRY org.eclipse.core.jobs 4 2 2010-06-09 09:11:34.031
MESSAGE An internal error occurred during:"Generating Artifacts".
STACK 0
org.hibernate.HibernateException:Hibernate Dialect must be explicitly set
at org.hibernate.dialect.DialectFactory.determineDialect(DialectFactory.java:57)
at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:39)
at org.hibernate.cfg.SettingsFactory.determineDialect(SettingsFactory.java:426)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:128)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2005)
at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration.readFromJDBC(MEJDBCMetaDataConfiguration.java:72)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$7.execute(GenerateArtifactsJob.java:877)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:91)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:858)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:405)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
请不要说是什么方言没有设置,也不要说配置hibernate.cfg.xml,这里根本没有hibernate.cfg.xml,
我根本都没有hibernate.cfg.xml这个文件,我用的是JPA
使用MySQL可以进行逆向工程,求解Oracle为什么不行

MyEclipse 8.6 就报An error has occurred.See the log file错误,
.log文件
!SESSION 2011-04-08 14:45:06.129 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.6.0_13
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.osgi 4 0 2011-04-08 14:45:19.324
!MESSAGE Application error
!STACK 1
java.lang.ArrayIndexOutOfBoundsException: 0
at org.eclipse.ui.internal.ide.ChooseWorkspaceData.writePersistedData(ChooseWorkspaceData.java:225)
at org.eclipse.ui.internal.ide.application.IDEApplication.checkInstanceLocation(IDEApplication.java:236)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:103)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

MyEclipse 部署 Tomcat 出错。

在MyEclipse 10中开发WebProject ，完成后将项目部署到MyEclipse自带的 MyEclipse Tomcat时没问题，但是部署到 Tomcat 6.x 时出错，如图：

为什么呢？如何解决？

your 30-day trial of MyEclipse is about to expire 这一句话的中文意思是什么