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java.lang.NoClassDefFoundError: oracle/javatools/util/Log	at oracle.ide.IdeCore.(IdeCore.java:2119)	at oracle.ideimpl.Main.start(Main.java:183)	at oracle.ideimpl.Main.main(Main.java:146)	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 oracle.ide.boot.PCLMain.callMain(PCLMain.java:62)	at oracle.ide.boot.PCLMain.main(PCLMain.java:54)	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 oracle.classloader.util.MainClass.invoke(MainClass.java:128)	at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:189)	at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:89)	at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:65)	at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:54)	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 oracle.ide.boot.Launcher.invokeMain(Launcher.java:713)	at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)	at oracle.ide.boot.Launcher.launch(Launcher.java:68)	at oracle.ide.boot.Launcher.main(Launcher.java:57)