StackOverflowError in toString method within anonymous class in TransactionErrorHandler of camel-spring component

Issue

• The toString method in the anonymous class in org.apache.camel.spring.spi.TransactionErrorHandler#processByErrorHandler causes a stack overflow
• Implemented as

return "Done " + this;

• Probably should be

return "Done " + TransactionErrorHandler.this;

• Only noticed during debugging session when the debugger invokes toString on an instance.