HADOOP-15598. DataChecksum calculate checksum is contented on hashtable synchronization. Contributed by Prasanth Jayachandran.
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@ -28,12 +28,12 @@ import com.google.common.annotations.VisibleForTesting;
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* natively.
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*/
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class NativeCrc32 {
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private static final boolean isSparc = System.getProperty("os.arch").toLowerCase().startsWith("sparc");
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/**
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* Return true if the JNI-based native CRC extensions are available.
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*/
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public static boolean isAvailable() {
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if (System.getProperty("os.arch").toLowerCase().startsWith("sparc")) {
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if (isSparc) {
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return false;
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} else {
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return NativeCodeLoader.isNativeCodeLoaded();
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