When using Eclipse as the AUT and trying to start the Java debugger it is possible that an error occurs which results in a dialog like this popping up:¶

Problem Occurred

'Launching myapp' has encountered a problem.

Cannot connect to VM socket closed

|OK|¶

The console view shows:

NPT ERROR: Cannot open library

Solution¶

To avoid this problem unset the environment variable JDK_ALTERNATE_VM before starting Eclipse. This could be done, for example, in a batch file:

set _JDK_ALTERNATE_VM=%JDK_ALTERNATE_VM%
set JDK_ALTERNATE_VM=
eclipse -vm "%_JDK_ALTERNATE_VM%"

• dialog
• java
• eclipse
• error