Cannot install utPLSQL for SQL Developer without Internet connection

Installation is not possible without internet connection or if access to internet via SQL Developer is blocked. In these cases the following screen appears when the Apache license should be shown:

![image001](https://user-images.githubusercontent.com/3883171/35911419-0b177c8a-0bfa-11e8-80ce-308befc8f03e.png)

The Java stack (Details) looks as follows:

```
java.lang.RuntimeException: java.lang.NullPointerException
         at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1488)
         at sun.net.www.protocol.http.HttpURLConnection.access$200(HttpURLConnection.java:91)
         at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1466)
         at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1464)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782)
         at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1463)
         at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:3018)
         at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:489)
         at oracle.ideimpl.webupdate.wizard.UpdateLicensePage.selectUpdate(UpdateLicensePage.java:250)
         at oracle.ideimpl.webupdate.wizard.UpdateLicensePage.pageSelected(UpdateLicensePage.java:132)
         at oracle.ideimpl.webupdate.wizard.UpdateWizardPage.onEntry(UpdateWizardPage.java:37)
         at oracle.ide.wizard.FSMWizard.gotoPanel(FSMWizard.java:839)
         at oracle.ide.wizard.FSMWizard.setSelectedPage(FSMWizard.java:505)
         at oracle.bali.ewt.wizard.BaseWizard.selectPage(BaseWizard.java:1999)
         at oracle.ide.wizard.FSMWizard.selectPage(FSMWizard.java:480)
         at oracle.ide.wizard.FSMWizard.doNext(FSMWizard.java:344)
         at oracle.bali.ewt.wizard.BaseWizard$Action$1.run(BaseWizard.java:4072)
         at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
         at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
         at java.awt.EventQueue.access$500(EventQueue.java:97)
         at java.awt.EventQueue$3.run(EventQueue.java:709)
         at java.awt.EventQueue$3.run(EventQueue.java:703)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
         at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
         at oracle.javatools.internal.ui.EventQueueWrapper._dispatchEvent(EventQueueWrapper.java:169)
         at oracle.javatools.internal.ui.EventQueueWrapper.dispatchEvent(EventQueueWrapper.java:151)
         at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
         at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
         at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:109)
         at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:184)
         at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:229)
         at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:227)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:227)
         at java.awt.Dialog.show(Dialog.java:1084)
         at java.awt.Component.show(Component.java:1671)
         at java.awt.Component.setVisible(Component.java:1623)
         at java.awt.Window.setVisible(Window.java:1014)
         at java.awt.Dialog.setVisible(Dialog.java:1005)
         at oracle.bali.ewt.wizard.WizardDialog.runDialog(WizardDialog.java:382)
         at oracle.bali.ewt.wizard.WizardDialog.runDialog(WizardDialog.java:298)
         at oracle.ide.dialogs.WizardLauncher.runDialog(WizardLauncher.java:51)
         at oracle.ideimpl.webupdate.wizard.UpdateWizard.runWizard(UpdateWizard.java:261)
         at oracle.ideimpl.webupdate.WebUpdateController.checkForUpdates(WebUpdateController.java:24)
         at oracle.ideimpl.webupdate.WebUpdateController.handleEvent(WebUpdateController.java:31)
         at oracle.ideimpl.controller.MetaClassController.handleEvent(MetaClassController.java:54)
         at oracle.ide.controller.IdeAction$ControllerDelegatingController.handleEvent(IdeAction.java:1488)
         at oracle.ide.controller.IdeAction.performAction(IdeAction.java:663)
         at oracle.ide.controller.IdeAction.actionPerformedImpl(IdeAction.java:1159)
         at oracle.ide.controller.IdeAction.actionPerformed(IdeAction.java:618)
         at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
         at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
         at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
         at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
         at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
         at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
         at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
         at java.awt.Component.processMouseEvent(Component.java:6533)
         at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
         at java.awt.Component.processEvent(Component.java:6298)
         at java.awt.Container.processEvent(Container.java:2236)
         at java.awt.Component.dispatchEventImpl(Component.java:4889)
         at java.awt.Container.dispatchEventImpl(Container.java:2294)
         at java.awt.Component.dispatchEvent(Component.java:4711)
         at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
         at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
         at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
         at java.awt.Container.dispatchEventImpl(Container.java:2280)
         at java.awt.Window.dispatchEventImpl(Window.java:2746)
         at java.awt.Component.dispatchEvent(Component.java:4711)
         at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
         at java.awt.EventQueue.access$500(EventQueue.java:97)
         at java.awt.EventQueue$3.run(EventQueue.java:709)
         at java.awt.EventQueue$3.run(EventQueue.java:703)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
         at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
         at java.awt.EventQueue$4.run(EventQueue.java:731)
         at java.awt.EventQueue$4.run(EventQueue.java:729)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
         at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
         at oracle.javatools.internal.ui.EventQueueWrapper._dispatchEvent(EventQueueWrapper.java:169)
         at oracle.javatools.internal.ui.EventQueueWrapper.dispatchEvent(EventQueueWrapper.java:151)
         at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
         at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
         at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
         at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
         at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
         at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.NullPointerException
         at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1191)
         at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1022)
         at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1020)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782)
         at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1019)
         at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
         at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1546)
         at sun.net.www.protocol.http.HttpURLConnection.access$200(HttpURLConnection.java:91)
         at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1466)
         at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1464)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782)
         at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1463)
         at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
         ... 83 more
```

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Cannot install utPLSQL for SQL Developer without Internet connection #14

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Cannot install utPLSQL for SQL Developer without Internet connection #14

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