Exception when running multiple tests in same remote engine

[asfimport]

Sebb (Bug 43168):
If a client tries to start two tests in the same remote engine, then failures
may result.

This is not really a bug, as it probably does not make sense to run multiple
tests in the same engine. But worth recording in case it can be fixed easily -
either by allowing multiple concurrent tests, or by preventing them.

Sample error from Branch 2.2 (r567702)

2007/08/20 14:41:56 ERROR - jmeter.engine.StandardJMeterEngine: Error occurred
compiling the tree: java.util.ConcurrentModificationException
at java.util.LinkedHashMap$LinkedHashIterator.nextEntry
(LinkedHashMap.java:358)
at java.util.LinkedHashMap$ValueIterator.next(LinkedHashMap.java:373)
at org.apache.jmeter.testelement.property.PropertyIteratorImpl.next
(PropertyIteratorImpl.java:50)
at org.apache.jmeter.engine.util.ValueReplacer.replaceValues
(ValueReplacer.java:113)
at org.apache.jmeter.engine.util.ValueReplacer.replaceValues
(ValueReplacer.java:65)
at org.apache.jmeter.engine.PreCompiler.addNode(PreCompiler.java:58)
at org.apache.jorphan.collections.HashTree.traverse(HashTree.java:956)
at org.apache.jmeter.engine.StandardJMeterEngine.compileTree
(StandardJMeterEngine.java:174)
at org.apache.jmeter.engine.StandardJMeterEngine.run
(StandardJMeterEngine.java:316)
at java.lang.Thread.run(Thread.java:534)

Meanwhile, this is documented as a known restriction.

OS: other

Duplicated by:

• JMeter server does not support concurrent tests - prevent client from starting another #2458

Depends on:

• ClientJMeterEngine can leave server in busy state #2575

[asfimport]

@pmouawad (migrated from Bugzilla):
Fixed in rev 1066684 in release 2.5

This bug has been marked as a duplicate of #2458

[asfimport]

@pmouawad (migrated from Bugzilla):
Fixed by preventing client from starting a new test while a test is running.