[JEXL-142] Map expression issue with empty key

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 2.1.1
• Fix Version/s: 3.0
• Assignee: Unassigned
• Reporter: Juozas Baliuks
• Created: 04/Feb/13 15:07
• Updated: 21/Mar/16 14:10
• Resolved: 19/Mar/15 15:16

Description

Map expressions fail if key is an empty string: map['']

Attachement contains patch with a fix and test case.

java.lang.StringIndexOutOfBoundsException: String index out of range: 3
at java.lang.AbstractStringBuilder.charAt(Unknown Source)
at java.lang.StringBuilder.charAt(Unknown Source)
at org.apache.commons.jexl2.internal.PropertyGetExecutor.discoverGet(PropertyGetExecutor.java:103)
at org.apache.commons.jexl2.internal.PropertyGetExecutor.discover(PropertyGetExecutor.java:82)
at org.apache.commons.jexl2.internal.PropertyGetExecutor.<init>(PropertyGetExecutor.java:38)
at org.apache.commons.jexl2.internal.Introspector.getGetExecutor(Introspector.java:230)
at org.apache.commons.jexl2.introspection.UberspectImpl.getPropertyGet(UberspectImpl.java:136)
at org.apache.commons.jexl2.Interpreter.getAttribute(Interpreter.java:1537)
at org.apache.commons.jexl2.Interpreter.visit(Interpreter.java:482)
at org.apache.commons.jexl2.parser.ASTArrayAccess.jjtAccept(ASTArrayAccess.java:18)
at org.apache.commons.jexl2.Interpreter.visit(Interpreter.java:1317)
at org.apache.commons.jexl2.parser.ASTReference.jjtAccept(ASTReference.java:18)
at org.apache.commons.jexl2.Interpreter.interpret(Interpreter.java:232)
at org.apache.commons.jexl2.ExpressionImpl.evaluate(ExpressionImpl.java:65)
at org.apache.commons.jexl2.MapLiteralTest.testLiteralWithNumbers(MapLiteralTest.java:99)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:243)
at junit.framework.TestSuite.run(TestSuite.java:238)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)