(ddd.info)JDB

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C.5 Using DDD with JDB
======================

There is no automatic data display in JDB.  As a workaround, DDD uses
the `dump' command to access data values.  This means that variable
names are interpreted according to the current frame; variables outside
the current frame cannot be displayed.

   In JDB 1.1, the `dump' and `print' commands do not support
expression evaluation.  Hence, you cannot display arbitrary expressions.

   Parsing of JDB output is quite CPU-intensive, due to the recognition
of asynchronous prompts (any thread may output anything at any time,
including prompts).  Hence, a program producing much console output is
likely to slow down DDD considerably.  In such a case, have the program
run with `-debug' in a separate window and attach JDB to it using the
`-passwd' option.