java.lang.NullPointerException .in files.length i think
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What is a NullPointerException, and how do I fix it?
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Android import java.nio.file.Files; cannot be resolved
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getResourceAsStream() is always returning null
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Java: Exception itself is null
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NullPointerException in Java with no StackTrace
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How to list the files inside a JAR file?
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NullPointerException accessing views in onCreate()
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What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
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What is a null-terminated string?
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Dealing with "java.lang.OutOfMemoryError: PermGen space" error
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Android java.io.File.listFiles() not working properly in Environment.getDataDirectory()
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Java7 ClassFormatError: Illegal local variable table length while creating the object
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When is it OK to catch NullPointerException?
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How come invoking a (static) method on a null reference doesn't throw NullPointerException?
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Catching java.lang.OutOfMemoryError?
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How to read file from relative path in Java project? java.io.File cannot find the path specified
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NullPointerException : println needs a message in android