1.打开注册表
官方提供的解决方案原文如下:
Problem
Enabling the Web Modeler Add-In in Rose produces a 'java.lang.ClassNotFoundException'
Solution
SYMPTOM:
Activating the Web Modeler add-in gives warning
"java.lang.ClassNotFoundException".
Immediately exiting Rose results in a "java.lang.NullPointerException" warning
and the rose does not respond.
CAUSE:
This is usually due to a broken Microsoft Java VM, but may be due to a missing
Registry entry.
RESOLUTION:
First, confirm that the Windows Registry value "TrustedClasspath" exists under
the key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Java VM".
This value must exist and contain the file paths:
c:\winnt\java\trustlib\rosedatamodeler.zip;
c:\winnt\java\trustlib\comwrappers.zip;
c:\winnt\java\trustlib\xerces.jar;
Steps:
1. Run RegEdit: use Windows "Start" menu > Run... > type 'regedit' and
hit Enter.
WARNING: RegEdit will let you modify information critical to operating the
computer. Before editing the Registry, make sure you understand how to restore
it if a problem occurs.
For more information see the "Restoring the Registry" Help-topic in RegEdit or
RegEdit32.
2. Browse to "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Java VM"
3. If TrustedClasspath does not exit, create it as a new String Value.
4. If TrustedClasspath does not have the paths listed above, add them to the
list separated by semicolons.
EXAMPLE:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Java VM
TrustedClasspath [REG_SZ]
= "c:\winnt\java\trustlib\rosedatamodeler.zip;
c:\winnt\java\trustlib\comwrappers.zip;
c:\winnt\java\trustlib\xerces.jar;"
5. Run Rose and turn on the Web Modeler add-in using the Add-In Manager