Downgrade Install Test

Tested on Win NT

TEST SCENARIO
=============

1.1 INSTALL released JDK 1.4.0_01b3 to default install directory
1.2 INSTALL JDK 1.3.1_09b1 to default install directory

1.3 Run regedit
   - JDK CurrentVersion="1.3"
   - JRE CurrentVersion="1.4"
  
**Note: When upgrading JDK 1.3.x to JDK 1.4.x the CurrentVersions will be "1.4"
so should the JRE CurrentVersion reflect 1.3 because it is the last installed
or 1.4 because it is a higher version - meaning the JDK should also keep 1.4?

1.4 In netscape About>Plugins
   Support is *not* shown for 1.3.1 and 1.4 mime types
   
   jpi-version 1.4.0_01 is present however.
   
   I would not think that this is coexisting, because 1.3.1 and 1.4 functionality is lost.
   

2.1 REMOVE 1.3.1_09b1 using add/remove programs
  - The 1.3.1_09 control panel icon remains even after refresh
  
2.2. Run regedit
   - JDK CurrentVersion is missing
   - JRE CurrentVersion still reflects 1.4 - which is fine because only 1.4 is on system
   
   otherwise registry looks to be ok
   
   
3.1 INSTALL JDK 1.3.1_09b1 to default install directory
 
3.2 Run regedit
   - Again, the JDK CurrentVersion is "1.3"
            and JRE CurrentVersion is "1.4"

   - This time, JRE 1.3 registry key is missing entries for JavaHome, MicroVersion and RuntimeLib
   
   
4.1 REMOVE released JDK/JRE 1.4.0_01b3 using add/remove programs

  - After 100% completed on status bar an Unhandled Exception dialog prompts
    Description: Failed to find dll function: ActPanel.MakeJava2Netscape6Default
    
4.2 Run regedit
  - JDK and JRE CurrentVersions are both "1.3" as expected
  - Java Plug-in\1.3.1_09\JavaHome registry key is now *missing*
  
  Therefore 131_09 Control Panel icon can NOT be launched
  
4.3 In netscape About>Plugins (ensuring no browser windows already open)
   - shows support for jpi-version 1.3.1_09 only
   
   Shows *NO* support for other mimetypes
   
5.1 REMOVE 1.3.1_09b1 using add/remove programs

5.2 Run regedit
   - registry keys not removed
   - JRE CurrentVersion is "1.3" with no java on system.


The above scenario is easily reproduceable.


###@###.### 2003-05-29