Jaroslav Tulach created NETBEANS-2028:
-----------------------------------------
Summary: 45s: single step my take so long
Key: NETBEANS-2028
URL: https://issues.apache.org/jira/browse/NETBEANS-2028
Project: NetBeans
Issue Type: Bug
Components: debugger - Java
Affects Versions: 10.0
Reporter: Jaroslav Tulach
Assignee: Martin Entlicher
Attachments: Debugger43sForASingleSteop.npss,
DebuggerGenerateSample.diff
I have problems with debugger when I debug NetBeans based applications.
Sometimes it just takes sooooo loooong to make a single step over. After some
analysis it turned out that the whole slowdown is caused by evaluation of
variables. When I modify the code to:
{code:java}
diff --git
a/java/debugger.jpda/src/org/netbeans/modules/debugger/jpda/JPDADebuggerImpl.java
b/java/debugger.jpda/src/org/netbeans/modules/debugger/jpda/JPDADebuggerImpl.java
index 0444242..933065c 100644
---
a/java/debugger.jpda/src/org/netbeans/modules/debugger/jpda/JPDADebuggerImpl.java
+++
b/java/debugger.jpda/src/org/netbeans/modules/debugger/jpda/JPDADebuggerImpl.java
@@ -345,7 +347,7 @@ public class JPDADebuggerImpl extends JPDADebugger {
*/
public Variable evaluate (String expression, CallStackFrame csf,
ObjectVariable var)
throws InvalidExpressionException {
- return evaluateGeneric(new EvaluatorExpression(expression), csf, var);
+ throw new InvalidExpressionException("skipping: " + expression);
}
{code}
then the debugger starts to behave normally - it it can step in, over and out
without any issues.
The next question is what is happening in the {{evaluateGeneric}} that takes so
long?
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