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  1. ,
    Expert tip

    Update Tomcat container adapters to 1.0.0.CR8 or further. If that doesn't work, 0D0A3C21 in ASCII is <!, first characters in a HTML file, so, check if you're not reading a different file or if there's an issue with your deserialization.

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    If you're using Liferay, check the steps in the last message on how to fix it: https://goo.gl/feXWKU

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java.io.StreamCorruptedException: invalid stream header: 00000000	at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:798)	at java.io.ObjectInputStream.(ObjectInputStream.java:293)	at com.google.api.client.util.IOUtils.deserialize(IOUtils.java:179)	at com.google.api.client.util.store.FileDataStoreFactory$FileDataStore.(FileDataStoreFactory.java:106)	at com.google.api.client.util.store.FileDataStoreFactory.createDataStore(FileDataStoreFactory.java:76)	at com.google.api.client.util.store.AbstractDataStoreFactory.getDataStore(AbstractDataStoreFactory.java:58)	at lngs.google.GoogleManager.connect(GoogleManager.java:124)	at lngs.MainGUI.doSync(MainGUI.java:365)	at lngs.MainGUI$SyncSwingWorker.doInBackground(MainGUI.java:491)	at lngs.MainGUI$SyncSwingWorker.doInBackground(MainGUI.java:481)	at javax.swing.SwingWorker$1.call(SwingWorker.java:288)	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)	at java.util.concurrent.FutureTask.run(FutureTask.java:149)	at javax.swing.SwingWorker.run(SwingWorker.java:327)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)	at java.lang.Thread.run(Thread.java:761)