java.lang.IllegalArgumentException: Cell at this index was already set!
        at com.sap.adt.abapcleaner.rulehelpers.AlignLine.setCell(AlignLine.java:50)
        at com.sap.adt.abapcleaner.rulehelpers.AlignLine.setCell(AlignLine.java:41)
        at com.sap.adt.abapcleaner.rules.alignment.AlignMethodsDeclarationRule.addOptionalKeywords(AlignMethodsDeclarationRule.java:331)
        at com.sap.adt.abapcleaner.rules.alignment.AlignMethodsDeclarationRule.executeOn(AlignMethodsDeclarationRule.java:190)     
        at com.sap.adt.abapcleaner.rules.alignment.AlignDeclarationSectionRuleBase.executeOn(AlignDeclarationSectionRuleBase.java:104)
        at com.sap.adt.abapcleaner.rulebase.Rule.executeIfAllowedOn(Rule.java:442)
        at com.sap.adt.abapcleaner.rulebase.Profile.executeRules(Profile.java:256)
        at com.sap.adt.abapcleaner.programbase.Task.run(Task.java:230)
        at com.sap.adt.abapcleaner.programbase.Task.run(Task.java:130)
        at com.sap.adt.abapcleaner.programbase.Task.run(Task.java:126)
        at com.sap.adt.abapcleaner.programbase.Job.runSingleCodeDocument(Job.java:112)
        at com.sap.adt.abapcleaner.programbase.Job.run(Job.java:101)
        at com.sap.adt.abapcleaner.gui.FrmMain.cleanAutomatically(FrmMain.java:302)
        at com.sap.adt.abapcleaner.gui.FrmMain.cleanSingleSourceAutomatically(FrmMain.java:220)
        at com.sap.adt.abapcleaner.gui.FrmMain.cleanAutomatically(FrmMain.java:191)
        at com.sap.adt.abapcleaner.gui.FrmMain.main(FrmMain.java:161)
        at com.sap.adt.abapcleaner.gui.eclipse.application.AbapCleanerApplication.start(AbapCleanerApplication.java:12)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1467)