[ https://issues.jboss.org/browse/WFCORE-1399?page=com.atlassian.jira.plugi... ] Valentin Maechler edited comment on WFCORE-1399 at 2/22/16 2:57 AM: -------------------------------------------------------------------- Good day! I've tried to escape the {{'$'}} with a leading {{'$'}} ==> test cases do not work as expected. Let's say we have a default value {{'a$'}}. And the system property is called {{'z'}}. The expression is then {{'${z:a$$}'}} including the escaping {{'$'}}. Expectation: # if the system property {{'z'}} is set to {{'system-prop-value'}} the resulting value shall be {{'system-prop-value'}} (/) # if the system property {{'z'}} is *NOT* set the resulting value shall be {{'a$'}} (x) The 1st case works fine but the result of the 2nd case is {{'a$$'}}. test cases added to ExpressionResolverUnitTestCase.java {code} @Test public void testSpecialDefaultValueWithSystemPropertySet() throws OperationFailedException {     System.setProperty("z", "system-prop-value");     try {         ModelNode node = new ModelNode();         node.get("expr").set(new ValueExpression("${z:a$$}"));         node = ExpressionResolver.TEST_RESOLVER.resolveExpressions(node);         assertEquals(1, node.keys().size());         assertEquals("system-prop-value", node.get("expr").asString());     } finally {         System.clearProperty("z");     } } @Test public void testSpecialDefaultValueWithoutSystemPropertySet() throws OperationFailedException {     ModelNode node = new ModelNode();     node.get("expr").set(new ValueExpression("${z:a$$}"));     node = ExpressionResolver.TEST_RESOLVER.resolveExpressions(node);     assertEquals(1, node.keys().size());     System.out.println("testSpecialDefaultValueWithoutSystemPropertySet: " + node.get("expr").asString());     assertEquals("a$", node.get("expr").asString()); } {code} was (Author: vmae): Good day! I've tried to escape the '$' with a leading '$' ==> test cases do not work as expected. Let's say we have a default value 'a$'. And the system property is called 'z'. The expression is then '${z:a$$}' including the escaping '$'. Expectation: # if the system property 'z' is set to 'system-prop-value' the resulting value shall be 'system-prop-value' (/) # if the system property 'z' is *NOT* set the resulting value shall be 'a$' (x) The 1st case works fine but the result of the 2nd case is 'a$$'. test cases added to ExpressionResolverUnitTestCase.java {code} @Test public void testSpecialDefaultValueWithSystemPropertySet() throws OperationFailedException {     System.setProperty("z", "system-prop-value");     try {         ModelNode node = new ModelNode();         node.get("expr").set(new ValueExpression("${z:a$$}"));         node = ExpressionResolver.TEST_RESOLVER.resolveExpressions(node);         assertEquals(1, node.keys().size());         assertEquals("system-prop-value", node.get("expr").asString());     } finally {         System.clearProperty("z");     } } @Test public void testSpecialDefaultValueWithoutSystemPropertySet() throws OperationFailedException {     ModelNode node = new ModelNode();     node.get("expr").set(new ValueExpression("${z:a$$}"));     node = ExpressionResolver.TEST_RESOLVER.resolveExpressions(node);     assertEquals(1, node.keys().size());     System.out.println("testSpecialDefaultValueWithoutSystemPropertySet: " + node.get("expr").asString());     assertEquals("a$", node.get("expr").asString()); } {code} -- This message was sent by Atlassian JIRA (v6.4.11#64026)