\u8fd1\u65e5\uff0c\u7532\u9aa8\u6587\u6b63\u5f0f\u53d1\u5e03Java 14\uff08Oracle JDK 14\uff09\u3002\u79c9\u627f\u7532\u9aa8\u6587\u5bf9\u52a0\u901f\u521b\u65b0\u7684\u4e00\u8d2f\u627f\u8bfa\uff0cJava\u4fdd\u6301\u6bcf\u516d\u4e2a\u6708\u53d1\u5e03\u4e00\u6b21\u65b0\u7248\u672c\uff0c\u4e3a\u4f01\u4e1a\u548c\u5f00\u53d1\u4eba\u5458\u793e\u533a\u63d0\u4f9b\u65b0\u7684\u589e\u5f3a\u529f\u80fd\u3002\u65b0\u7248Java\u5f00\u53d1\u5de5\u5177\u5305\uff08JDK\uff09\u63d0\u4f9b\u4e86\u8bb8\u591a\u65b0\u7279\u6027\uff0c\u5176\u4e2d\u5305\u62ec\u4e24\u4e2a\u5907\u53d7\u671f\u5f85\u7684\u65b0\u9884\u89c8\u7279\u6027\uff1ainstanceof\u6a21\u5f0f\u5339\u914d\uff08JEP 305\uff09\u548c\u8bb0\u5f55\u7c7b\uff08JEP 359\uff09\uff0c\u4ee5\u53ca\u7b2c\u4e8c\u6b21\u4f5c\u4e3a\u9884\u89c8\u7279\u6027\u7684\u6587\u672c\u5757\uff08JEP 368\uff09\u3002<\/p>\n
\u6b64\u5916\uff0c\u6700\u65b0\u7248Java\u8fd8\u589e\u52a0\u4e86\u5bf9switch\u8868\u8fbe\u5f0f\u7684Java\u8bed\u8a00\u652f\u6301\uff0c\u516c\u5f00\u4e86\u7528\u4e8e\u6301\u7eed\u76d1\u89c6DK Flight Recorder\u6570\u636e\u7684\u5168\u65b0API\uff0c\u5c06\u4f4e\u5ef6\u8fdfZ\u5783\u573e\u6536\u96c6\u5668\u7684\u53ef\u7528\u6027\u6269\u5c55\u81f3macOS\u548cWindows\uff0c\u5e76\u5728\u5b75\u5316\u5668\u6a21\u5757\u4e2d\u5c01\u88c5\u4e86\u72ec\u7acbJava\u5e94\u7528\u548c\u65b0\u7684\u5916\u90e8\u5185\u5b58\u8bbf\u95eeAPI\uff0c\u4ee5\u6b64\u652f\u6301\u5b89\u5168\u3001\u9ad8\u6548\u5730\u8bbf\u95eeJava\u5806\u5916\u90e8\u7684\u5185\u5b58\u3002<\/p>\n
\u201cJava \u7ef4\u6301\u4e86\u6bcf\u516d\u4e2a\u6708\u53d1\u5e03\u65b0\u7248\u672c\u7684\u8282\u594f\uff0c\u8ba9\u5f00\u53d1\u4eba\u5458\u80fd\u5c3d\u5feb\u5c1d\u8bd5\u5230\u8bb8\u591a\u539f\u672c\u9700\u8981\u7b49\u5f85\u6570\u5e74\u7684\u529f\u80fd\uff0c\u8fd9\u4e2a\u4f18\u52bf\u5728Java 14\u4e2d\u5f97\u5230\u4e86\u8fdb\u4e00\u6b65\u4f53\u73b0\u3002\u201d\u7532\u9aa8\u6587\u516c\u53f8Java\u5e73\u53f0\u5f00\u53d1\u526f\u603b\u88c1Georges Saab\u8868\u793a\uff0c\u201cJDK 14\u4e0d\u4ec5\u5e26\u6765\u5f88\u591a\u5e2e\u52a9\u5f00\u53d1\u8005\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u7684\u589e\u5f3a\u529f\u80fd\uff0c\u800c\u4e14\u9996\u6b21\u63d0\u4f9b\u6765\u81eaProject Panama\u7b49\u9879\u76ee\u7684\u91cd\u8981\u5185\u5bb9\uff0c\u5305\u62ec\u5916\u90e8\u5b58\u50a8\u5668\u8bbf\u95eeAPI\u589e\u5f3a\uff08JEP 370\uff09\uff0c\u4ee5\u53caProject Amber\u7684\u6301\u7eed\u6539\u8fdb\uff0c\u4f8b\u5982\u6a21\u5f0f\u5339\u914d\uff08JEP 305\uff09\u548c\u8bb0\u5f55\u7c7b\uff08JEP 359\uff09\u3002\u8fd9\u4e9b\u91cd\u5927\u589e\u5f3a\u8db3\u4ee5\u8bc1\u660e\u6211\u4eec\u5728\u8fd9\u4e9b\u7a81\u7834\u6027\u9879\u76ee\u6240\u4ed8\u51fa\u7684\u52aa\u529b\u3002\u201d<\/p>\n
Java 14\u53d1\u884c\u7248\u662f\u6574\u4e2a\u884c\u4e1a\u901a\u529b\u5408\u4f5c\u7684\u6210\u679c\uff0c\u8fd9\u91cc\u9762\u5305\u62ec\u4e86\u5f00\u653e\u8bc4\u5ba1\u3001\u6bcf\u5468\u6784\u5efa\u548c\u4e00\u76f4\u4ee5\u6765\u7532\u9aa8\u6587\u5de5\u7a0b\u5e08\u901a\u8fc7OpenJDK\u793e\u533a\u548cJava Community Process\u4e0e\u5168\u7403Java\u5f00\u53d1\u4eba\u5458\u793e\u533a\u6210\u5458\u95f4\u7684\u5e7f\u6cdb\u5408\u4f5c\u3002Java 14\u7684\u65b0\u589e\u7279\u6027\u6709\uff1a<\/p>\n
JEP 305\uff1ainstanceof\u6a21\u5f0f\u5339\u914d\uff08Pattern Matching for instanceof\uff0c\u9884\u89c8\u7248\uff09 \u2014 \u8be5\u9884\u89c8\u7279\u6027\u53ef\u901a\u8fc7instanceof\u8fd0\u7b97\u7b26\u6a21\u5f0f\u5339\u914d\u6765\u589e\u5f3aJava\u3002\u4f7f\u7528\u8be5\u7279\u6027\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u79fb\u9664\u6389\u5e38\u89c1\u7684\u6837\u677f\u4ee3\u7801\uff0c\u5199\u51fa\u66f4\u52a0\u7b80\u6d01\u7684\u7c7b\u578b\u5b89\u5168\u4ee3\u7801\uff0c\u4ece\u800c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n
JEP343\uff1a\u6253\u5305\u5de5\u5177\uff08Packaging Tool\uff0c\u5b75\u5316\u9636\u6bb5\uff09\u2014 \u652f\u6301\u5f00\u53d1\u4eba\u5458\u6253\u5305Java\u5e94\u7528\u5e76\u4ee5\u5e73\u53f0\u7279\u5b9a\u683c\u5f0f\u8fdb\u884c\u5206\u53d1\u3002\u8fd9\u6709\u52a9\u4e8e\u5f00\u53d1\u4eba\u5458\u5f00\u53d1\u90a3\u4e9b\u8981\u6c42\u8fd0\u884c\u65f6\u548c\u5e94\u7528\u6346\u7ed1\u5728\u5355\u4e00\u4ea4\u4ed8\u6210\u679c\u4e2d\u7684\u73b0\u4ee3\u5e94\u7528\u3002Java 14\u5728\u5b75\u5316\u5668\u6a21\u5757\u4e2d\u5f15\u5165\u4e86\u6b64\u5de5\u5177\uff0c\u5c06\u975e\u6700\u7ec8\u7248API\u548c\u975e\u6700\u7ec8\u7248\u5de5\u5177\u63d0\u4f9b\u7ed9\u5f00\u53d1\u4eba\u5458\u4ee5\u83b7\u53d6\u53cd\u9988\uff0c\u8fd9\u4e9bAPI\u6216\u5de5\u5177\u5728\u672a\u6765\u7248\u672c\u4e2d\u53ef\u80fd\u4f1a\u88ab\u4fdd\u7559\u6216\u79fb\u9664\u3002<\/p>\n
JEP 345\uff1a\u9002\u7528\u4e8eG1\u7684NUMA\u611f\u77e5\u5185\u5b58\u5206\u914d \uff08NUMA-Aware Memory Allocation for G1\uff09\u2014 \u6539\u8fdb\u975e\u4e00\u81f4\u6027\u5185\u5b58\u8bbf\u95ee\uff08NUMA\uff09\u7cfb\u7edf\u4e0a\u7684G1\u5783\u573e\u6536\u96c6\u5668\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n
JEP 349\uff1aJFR\u4e8b\u4ef6\u6d41\uff08JFR Event Streaming\uff09 \u2014 \u516c\u5f00JDK Flight Recorder \uff08JFR\uff09\u6570\u636e\u4ee5\u4fbf\u6301\u7eed\u76d1\u63a7\u3002\u8fd9\u6709\u52a9\u4e8e\u7b80\u5316\u5404\u79cd\u5de5\u5177\u548c\u5e94\u7528\u5bf9JFR\u6570\u636e\u7684\u8bbf\u95ee\uff0c\u5e76\u6fc0\u52b1\u8fdb\u4e00\u6b65\u521b\u65b0\u3002<\/p>\n
JEP 352\uff1a\u975e\u6613\u5931\u6027\u6620\u5c04\u5b57\u8282\u7f13\u51b2\u533a\uff08Non-Volatile Mapped Byte Buffers\uff09 \u2014 \u5728\u4f7f\u7528\u975e\u6613\u5931\u6027\u5185\u5b58\u65f6\uff0c\u4e3aJDK\u6dfb\u52a0\u4e00\u79cd\u6587\u4ef6\u6620\u5c04\u6a21\u5f0f\uff0c\u6269\u5c55\u5bf9\u975e\u6613\u5931\u6027\u5185\u5b58\u7684\u8bbf\u95ee\u3002<\/p>\n
JEP 358\uff1a\u6709\u7528\u7684NullPointerExceptions\uff08Helpful NullPointerExceptions\uff09 \u2014 \u51c6\u786e\u63cf\u8ff0\u54ea\u4e2a\u53d8\u91cf\u4e3anull\u5e76\u63d0\u4f9b\u5176\u4ed6\u6709\u7528\u4fe1\u606f\uff0c\u4ece\u800c\u63d0\u9ad8NullPointerExceptions\u7684\u53ef\u7528\u6027\u3002\u8fd9\u5c06\u63d0\u9ad8\u5f00\u53d1\u4eba\u5458\u7684\u5de5\u4f5c\u6548\u7387\uff0c\u6539\u8fdb\u8bb8\u591a\u5f00\u53d1\u548c\u8c03\u8bd5\u5de5\u5177\u7684\u8d28\u91cf\u3002<\/p>\n
JEP 359\uff1a\u8bb0\u5f55\u7c7b\uff08Records\uff0c\u9884\u89c8\u7248\uff09\u2014 \u8be5\u9884\u89c8\u7279\u6027\u901a\u8fc7\u4e00\u79cd\u7d27\u51d1\u7684\u8bed\u6cd5\u6765\u58f0\u660e\u4fdd\u5b58\u6d45\u5c42\u4e0d\u53ef\u53d8\u6570\u636e\u7684\u7c7b\u3002\u6b64\u7279\u6027\u6709\u52a9\u4e8e\u5927\u5e45\u51cf\u5c11\u8be5\u7c7b\u4e2d\u7684\u6837\u677f\u4ee3\u7801\uff0c\u4e0d\u8fc7\u5176\u6700\u5927\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u5c06\u6570\u636e\u5efa\u6a21\u4e3a\u6570\u636e\u3002\u7528\u6237\u53ef\u4ee5\u8f7b\u677e\u3001\u6e05\u695a\u3001\u7b80\u6d01\u5730\u58f0\u660e\u8fd9\u4e9b\u6d45\u5c42\u4e0d\u53ef\u53d8\u6570\u636e\u805a\u5408\u3002<\/p>\n
JEP 361\uff1aSwitch\u8868\u8fbe\u5f0f\uff08Switch Expressions\uff0c\u6807\u51c6\u7248\uff09\u2014 \u5728JDK 12\u548cJDK 13\u4e2d\uff0cSwitch\u8868\u8fbe\u5f0f\u4e3a\u9884\u89c8\u7279\u6027\uff0c\u73b0\u5df2\u6210\u4e3a\u6807\u51c6\u7279\u6027\u3002\u5b83\u5141\u8bb8\u4f7f\u7528switch\u4f5c\u4e3a\u8bed\u53e5\u6216\u8868\u8fbe\u5f0f\u3002\u6b64\u7279\u6027\u7b80\u5316\u4e86\u65e5\u5e38\u7f16\u7801\uff0c\u5e76\u4e3a\u6b64\u7248\u672c\u4e2d\u7684\u6a21\u5f0f\u5339\u914d(JEP 305)\u9884\u89c8\u7279\u6027\u505a\u597d\u4e86\u51c6\u5907\u3002<\/p>\n
JEP 364\uff1amacOS\u4e0a\u7684ZGC\u4ee5\u53caJEP 365\uff1aWindows\u4e0a\u7684ZGC \u2014 \u5c3d\u7ba1\u5927\u591a\u6570\u9700\u8981ZGC\u7684\u7528\u6237\u4e5f\u9700\u8981Linux\u73af\u5883\u7684\u53ef\u6269\u5c55\u6027\uff0c\u4f46\u901a\u5e38\u9700\u8981\u901a\u8fc7\u90e8\u7f72\u548c\u6d4b\u8bd5\u4ee5\u4fbf\u5728macOS\u548cWindows\u4e0a\u652f\u6301ZGC\u3002\u8fd8\u6709\u4e00\u4e9b\u9488\u5bf9Windows\u548cmacOS\u7684\u684c\u9762\u5e94\u7528\u4e5f\u5c06\u53d7\u76ca\u4e8eZGC\u3002<\/p>\n
JEP 368\uff1a\u6587\u672c\u5757\uff08Text Blocks\uff0c\u7b2c\u4e8c\u6b21\u9884\u89c8\u7248\uff09\u2014 \u6587\u672c\u5757\u4f5c\u4e3a\u9884\u89c8\u7279\u6027\u9996\u6b21\u5f15\u5165Java 13\u540e\u6536\u5230\u4e86\u4f17\u591a\u6700\u7ec8\u7528\u6237\u7684\u53cd\u9988\u3002\u73b0\u5728\uff0c\u6587\u672c\u5757\u5f97\u5230\u4e86\u589e\u5f3a\uff0c\u518d\u6b21\u4f5c\u4e3a\u9884\u89c8\u7279\u6027\u51fa\u73b0\u5728Java 14\u4e2d\uff0c\u76ee\u6807\u6210\u4e3a\u672a\u6765JDK\u7248\u672c\u7684\u6807\u51c6\u7279\u6027\u3002\u4f7f\u7528\u6587\u672c\u5757\u53ef\u4ee5\u8f7b\u677e\u8868\u8fbe\u8de8\u591a\u884c\u6e90\u4ee3\u7801\u7684\u5b57\u7b26\u4e32\u3002\u5b83\u63d0\u9ad8\u4e86Java\u7a0b\u5e8f\u4e2d\u4ee5\u975eJava\u8bed\u8a00\u7f16\u5199\u7684\u4ee3\u7801\u7684\u5b57\u7b26\u4e32\u7684\u53ef\u8bfb\u6027\uff1b\u5b83\u7ea6\u5b9a\uff0c\u4efb\u4f55\u65b0\u6784\u9020\u7684\u6587\u672c\u5757\u90fd\u53ef\u4ee5\u7528\u5b57\u7b26\u4e32\u76f8\u540c\u7684\u5b57\u7b26\u96c6\u8868\u793a\uff0c\u89e3\u91ca\u76f8\u540c\u7684\u8f6c\u4e49\u5e8f\u5217\u5e76\u4ee5\u4e0e\u5b57\u7b26\u4e32\u76f8\u540c\u7684\u65b9\u5f0f\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n
JEP370\uff1a\u5916\u90e8\u5185\u5b58\u8bbf\u95eeAPI\uff08Foreign-Memory Access API\uff0c\u5b75\u5316\u9636\u6bb5\uff09\u2014 \u6b64API\u53ef\u5141\u8bb8Java\u7a0b\u5e8f\u5b89\u5168\u3001\u9ad8\u6548\u5730\u8bbf\u95eeJava\u5806\u4e4b\u5916\u7684\u5916\u90e8\u5185\u5b58\u3002<\/p>\n
\u5bf9\u4e8e\u5bfb\u6c42\u5546\u4e1a\u652f\u6301\u7684\u7528\u6237\u548c\u4f01\u4e1a\uff0c\u7532\u9aa8\u6587\u8fd8\u63d0\u4f9b\u4e00\u79cd\u4f4e\u6210\u672c\u3001\u53ef\u9884\u6d4b\u7684\u652f\u6301\u89e3\u51b3\u65b9\u6848 \u2014 Oracle Java SE\u8ba2\u9605\u670d\u52a1\u3002\u76ee\u524d\uff0c\u8be5\u670d\u52a1\u5df2\u5f97\u5230\u5168\u7403\u6210\u5343\u4e0a\u4e07\u5bb6\u4e0d\u540c\u89c4\u6a21\u7c7b\u578b\u7ec4\u7ec7\u7684\u5e7f\u6cdb\u4f7f\u7528\u3002\u901a\u8fc7\u8be5\u670d\u52a1\uff0c\u7528\u6237\u53ef\u4ee5\u83b7\u5f97Java SE\u8bb8\u53ef\u8bc1\u4ee5\u53ca\u6240\u9700\u7cfb\u7edf\u7684\u5168\u9762\u652f\u6301\uff0c\u800c\u4e14\u53ef\u4ee5\u968f\u9700\u968f\u7528\u3002\u8fd9\u4e9b\u5ba2\u6237\u53ef\u4ee5\u5b9a\u671f\u76f4\u63a5\u4ece\u7532\u9aa8\u6587\u83b7\u5f97\u6240\u652f\u6301\u7248\u672c\u7ecf\u8fc7\u6d4b\u8bd5\u4e0e\u8ba4\u8bc1\u7684\u6027\u80fd\u3001\u7a33\u5b9a\u6027\u53ca\u5b89\u5168\u6027\u66f4\u65b0\u3002<\/p>\n
\u3010Java\u4e00\u76f4\u4ee5\u6765\u90fd\u662f\u6df1\u53d7\u8f6f\u4ef6\u5f00\u53d1\u8005\u9752\u7750\u7684\u9996\u9009\u7f16\u7a0b\u8bed\u8a00\u3002\u4f34\u968f\u7740Java 14\u521b\u65b0\u529f\u80fd\u7684\u6309\u65f6\u4ea4\u4ed8\uff0c\u5bf9\u672a\u6765\u7684\u5468\u8be6\u89c4\u5212\u4ee5\u53ca\u5bf9\u751f\u6001\u7cfb\u7edf\u7684\u6301\u7eed\u6295\u5165\uff0cJava\u5e73\u53f0\u5c06\u7ee7\u7eed\u4e3a\u73b0\u4ee3\u5e94\u7528\u5f00\u53d1\u6ce8\u5165\u52a8\u529b\u3002\u3011<\/p>\n<\/p>\n
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