[stringtemplate-interest] [ST4] Bug: ArrayIndexOutOfBoundsException in STRuntimeMessage.getSourceLocation

[Udo Borkowski]

When trying to inspect a main template of this group:

main(doit = true) ::= "<if(doit || other)><t(...)><endif>\"
t2() ::= "Hello"
t(x={<(t2())>}) ::= "<x>"

ST4 throws an ArrayIndexOutOfBoundsException in STRuntimeMessage.getSourceLocation.

Interestingly removing the "|| other" let you inspect the template.

Also making the default for x =  {<t2()>} (i.e. use lazy evaluation) and keeping the "|| other" also works fine.


I added a test case to TestEarlyEvaluation and checked it in into Perforce.

Udo


P.S.: here the stack track

java.lang.ArrayIndexOutOfBoundsException: 17
	at org.stringtemplate.v4.misc.STRuntimeMessage.getSourceLocation(STRuntimeMessage.java:70)
	at org.stringtemplate.v4.misc.STRuntimeMessage.toString(STRuntimeMessage.java:81)
	at javax.swing.DefaultListCellRenderer.getListCellRendererComponent(DefaultListCellRenderer.java:134)
	at javax.swing.plaf.basic.BasicListUI.updateLayoutState(BasicListUI.java:1344)
	at javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(BasicListUI.java:1294)
	at javax.swing.plaf.basic.BasicListUI.getPreferredSize(BasicListUI.java:561)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1634)
	at javax.swing.JList.getPreferredScrollableViewportSize(JList.java:2412)
	at javax.swing.ViewportLayout.preferredLayoutSize(ViewportLayout.java:75)
	at java.awt.Container.preferredSize(Container.java:1599)
	at java.awt.Container.getPreferredSize(Container.java:1584)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
	at javax.swing.ScrollPaneLayout.preferredLayoutSize(ScrollPaneLayout.java:475)
	at java.awt.Container.preferredSize(Container.java:1599)
	at java.awt.Container.getPreferredSize(Container.java:1584)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
	at java.awt.GridBagLayout.GetLayoutInfo(GridBagLayout.java:1092)
	at java.awt.GridBagLayout.getLayoutInfo(GridBagLayout.java:893)
	at java.awt.GridBagLayout.preferredLayoutSize(GridBagLayout.java:713)
	at java.awt.Container.preferredSize(Container.java:1599)
	at java.awt.Container.getPreferredSize(Container.java:1584)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
	at javax.swing.JRootPane$RootLayout.preferredLayoutSize(JRootPane.java:907)
	at java.awt.Container.preferredSize(Container.java:1599)
	at java.awt.Container.getPreferredSize(Container.java:1584)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
	at java.awt.BorderLayout.preferredLayoutSize(BorderLayout.java:702)
	at java.awt.Container.preferredSize(Container.java:1599)
	at java.awt.Container.getPreferredSize(Container.java:1584)
	at java.awt.Window.pack(Window.java:706)
	at org.stringtemplate.v4.gui.STViz.open(STViz.java:212)
	at org.stringtemplate.v4.ST.inspect(ST.java:471)
	at org.stringtemplate.v4.ST.inspect(ST.java:454)
	at org.stringtemplate.v4.ST.inspect(ST.java:447)
	at org.stringtemplate.v4.test.TestEarlyEvaluation.testBugArrayIndexOutOfBoundsExceptionInSTRuntimeMessage_getSourceLocation(TestEarlyEvaluation.java:138)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
	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)

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