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This bug was originally marked as duplicate of bug 235273, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.0.2 (Build 201411181905) VM: Java HotSpot(TM) 64-Bit Server VM, 24.80-b11, Java(TM) SE Runtime Environment, 1.7.0_80-b15 OS: Linux User Comments: GUEST: Attempting to open a java project GUEST: Trying to open JavaSE project Stacktrace: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.substring(String.java:1875) at org.netbeans.modules.java.project.ProjectProblemsProviders.getDisplayId(ProjectProblemsProviders.java:563) at org.netbeans.modules.java.project.ProjectProblemsProviders.getDisplayName(ProjectProblemsProviders.java:499) at org.netbeans.modules.java.project.ProjectProblemsProviders.getReferenceProblems(ProjectProblemsProviders.java:338) at org.netbeans.modules.java.project.ProjectProblemsProviders.access$1300(ProjectProblemsProviders.java:127) at org.netbeans.modules.java.project.ProjectProblemsProviders$ReferenceProblemProviderImpl$1$1.run(ProjectProblemsProviders.java:1094)
Created attachment 157162 [details] stacktrace