Class ThrowableCallStack
- java.lang.Object
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- org.apache.tomcat.dbcp.pool2.impl.ThrowableCallStack
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- All Implemented Interfaces:
CallStack
public class ThrowableCallStack extends java.lang.Object implements CallStack
CallStack strategy that uses the stack trace from aThrowable
. This strategy, while slower than the SecurityManager implementation, provides call stack method names and other metadata in addition to the call stack of classes.- Since:
- 2.4.3
- See Also:
Throwable.fillInStackTrace()
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Constructor Summary
Constructors Constructor Description ThrowableCallStack(java.lang.String messageFormat, boolean useTimestamp)
Creates a new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
Clears the current stack trace snapshot.void
fillInStackTrace()
Takes a snapshot of the current call stack.boolean
printStackTrace(java.io.PrintWriter writer)
Prints the current stack trace if available to a PrintWriter.
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Method Detail
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clear
public void clear()
Description copied from interface:CallStack
Clears the current stack trace snapshot. Subsequent calls toCallStack.printStackTrace(PrintWriter)
will be no-ops until another call toCallStack.fillInStackTrace()
.
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fillInStackTrace
public void fillInStackTrace()
Description copied from interface:CallStack
Takes a snapshot of the current call stack. Subsequent calls toCallStack.printStackTrace(PrintWriter)
will print out that stack trace until it is cleared.- Specified by:
fillInStackTrace
in interfaceCallStack
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printStackTrace
public boolean printStackTrace(java.io.PrintWriter writer)
Description copied from interface:CallStack
Prints the current stack trace if available to a PrintWriter. The format is undefined and is primarily useful for debugging issues withPooledObject
usage in user code.- Specified by:
printStackTrace
in interfaceCallStack
- Parameters:
writer
- a PrintWriter to write the current stack trace to if available- Returns:
- true if a stack trace was available to print or false if nothing was printed
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