Dbviusalizer报错Java.lang.ClassCastException: javax.swing.KeyStroke cannot be cast to java.lang.Compar

前几日重装系统，装了java8，今天运行DbVisualizer时，报Java.lang.ClassCastException: javax.swing.KeyStroke cannot be cast to java.lang.Comparable 这样的错误。真是怪事。我的DbVisualizer版本是7.0.5，好像是该版本不支持java8，只能在java6下运行，由于种种原因吧，不想升级。后来在官网上找到了答案，只要新建个DBVIS_JAVA_HOME环境变量，指定你想要的jre版本就可以了。正常运行，截图如下：

官网解释：http://confluence.dbvis.com/pages/viewpage.action?pageId=3146120

另：只有spring4以上才支持java8，所以系统装了java8后如果想正常运行spring4以下的程序，需要指定运行的jre版本，当然是8以下的。

原博客地址http://blog.csdn.net/tegwy/article/details/38584233，感谢原博主

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我的版本也是7.0.5，昨天安装了JDK7，今天就报错了，如上配置

Windows/Unix/Linux:

In the DbVisualizer installation directory there is an .install4j directory,
In this directory create a file named pref_jre.cfg if it doesn't already exist,
Open the file in a text editor,
Add the complete path to the root directory for the Java installation you want to use.
Example: C:\Program Files\Java\jre7

An alternative solution is to set the DBVIS_JAVA_HOME environment variable to point to the root directory for the Java installation.

Example: DBVIS_JAVA_HOME=C:\Program Files\Java\jre7

Mac OS X:

On Mac OS X, this is the search order for Java when launching DbVisualizer:

Java installed with DbVisualizer in DbVisualizer.app/Contents/PlugIns/jre.bundle
Any installed Java (JRE) in /Library/Internet Plug-Ins/JavaAppletPlugin.plugin
Last, it looks for a matching Java (JDK) version in /Library/Java/JavaVirtualMachines

If you want to use a different Java version, you must download and install the Java JDK for that version (there is no way to select a specific JRE version). The new JDK version is installed in /Library/Java/JavaVirtualMachines/.

Do as follows to change so that DbVisualizer use the new Java version:

Open a Terminal window
Execute: cd DbVisualizer.app/Contents
If the PlugIns folder doesn't exist create it with: mkdir PlugIns
Execute: cd Plugins
If there is a jre.bundle link or folder in the PlugIns folder, rename it (for backup purposes) with: mv jre.bundle jre.bundle.ORG
Create a symbolic link to the new Java version: ln -s /Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk jre.bundle
Start DbVisualizer. It now uses the Java version specified by the symbolic link

解决了我的问题，应该也是存在jre的识别问题吧，我配置了jre7也成功，不仅用在jre6

1、找到所在目录C:\Program Files\DbVisualizer-7.1.2\.install4j

2、新增文件（如果没有）

3、增加内容

DBVIS_JAVA_HOME=C:\Program Files\Java\jre7

4、运行成功

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Dbviusalizer报错Java.lang.ClassCastException: javax.swing.KeyStroke cannot be cast to java.lang.Compar

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