[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-4342) RemotingTest.testMapWrapper() relies on undefined behavior

RemotingTest.testMapWrapper() relies on undefined behavior ---------------------------------------------------------- Key: JBSEAM-4342 URL: https://jira.jboss.org/jira/browse/JBSEAM-4342 Project: Seam Issue Type: Bug Components: Remoting, Test Harness Affects Versions: 2.2.0.GA Environment: Java(TM) SE Runtime Environment (build pxi3260sr4-20090219_01(SR4)) IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 Linux x86-32 jvmxi3260-20090215_29883 (JIT enabled, AOT enabled) J9VM - 20090215_029883_lHdSMr JIT - r9_20090213_2028 GC - 20090213_AA) JCL - 20090218_01 Reporter: Jozef Hartinger Assignee: Shane Bryzak Fix For: 2.2.1.CR1 org.jboss.seam.test.unit.RemotingTest.testMapWrapper() The test expects the elements to be returned in the same order in which they were created: <map><element><k><str>bar</str></k><v><str>zzzzz</str></v></element><element><k><str>foo</str></k><v><str>aaaaa</str></v></element></map> However, on IBM JVM, the order of elements is not preserved in the returned tree, so the tree looks like this: <map><element><k><str>foo</str></k><v><str>aaaaa</str></v></element><element><k><str>bar</str></k><v><str>zzzzz</str></v></element></map> The assumption of the test is incorrect, because the marshal() method of MapWrapper class iterates over a Set of keys and thus the order cannot be guaranteed.