I just solved a problem which took me way too much time so I thought I share the solution here in case anyone else is biting bricks because of this.
what happened? I run Pentaho Data Integration 5.2 on CentOS 6.6. It worked like a charme until I ran yum update the last time.
Now when I was using the graphical interface spoon crashes immediately when I would open an element (e.g. table input) and try to select the query text. Sometimes it leaves a crash message sometimes not.
Here is the error message:
java: cairo-misc.c:380: _cairo_operator_bounded_by_source: Assertion `NOT_REACHED' failed.
./spoon.sh: line 206: 8922 Aborted (core dumped) "$_PENTAHO_JAVA" $OPT -jar "$STARTUP" -lib $LIBPATH "${1+$@}"