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https://issues.apache.org/jira/browse/HADOOP-19334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17898146#comment-17898146
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ASF GitHub Bot commented on HADOOP-19334:
-----------------------------------------
myandpr commented on PR #7156:
URL: https://github.com/apache/hadoop/pull/7156#issuecomment-2475560189
changes:
1. Rewrite the method NativeIO.getOperatingSystemPageSize by calling the os
command line.
2. FastByteComparisons
3. Drop UnsafeAtomicHelper in AbstractFuture.java
4. Replace related operations of sun.misc.Unsafe with AtomicLong such as
unsafe.putLongVolatile(), unsafe.getLongVolatile() and
unsafe.compareAndSwapLong.
> Remove usage of sun.misc.Unsafe
> -------------------------------
>
> Key: HADOOP-19334
> URL: https://issues.apache.org/jira/browse/HADOOP-19334
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Reporter: yanmin
> Priority: Major
> Labels: pull-request-available
>
> when we build hadoop in JDK11 runtime based on
> [https://github.com/apache/hadoop/pull/7085,] JDK11 build is failing as
> flowing due to: {{package sun.misc does not exist}} in.
>
> This is because that package sun.misc is not supported after jdk11.
>
> The purpose of this JIRA is to replace the .misc.Unsafe.
> related java class:
> {code:java}
> NativeIO.java
> FastByteComparisons.java
> AbstractFuture.java
> ShortCircuitShm.java {code}
>
> {code:java}
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-compiler-plugin:3.10.1:compile
> (default-compile) on project hadoop-common: Compilation failure: Compilation
> failure:
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[22,16]
> package sun.misc does not exist
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[23,16]
> package sun.misc does not exist
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[44,43]
> cannot find symbol
> [ERROR] symbol: class SignalHandler
> [ERROR] location: class org.apache.hadoop.util.SignalLogger
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[46,19]
> cannot find symbol
> [ERROR] symbol: class SignalHandler
> [ERROR] location: class org.apache.hadoop.util.SignalLogger.Handler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[59,24]
> cannot find symbol
> [ERROR] symbol: class Signal
> [ERROR] location: class org.apache.hadoop.util.SignalLogger.Handler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[26,16]
> package sun.misc does not exist
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[27,16]
> package sun.misc does not exist
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[42,42]
> cannot find symbol
> [ERROR] symbol: class SignalHandler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[71,11]
> cannot find symbol
> [ERROR] symbol: class Signal
> [ERROR] location: class org.apache.hadoop.service.launcher.IrqHandler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[126,22]
> cannot find symbol
> [ERROR] symbol: class Signal
> [ERROR] location: class org.apache.hadoop.service.launcher.IrqHandler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/nativeio/NativeIO.java:[48,16]
> package sun.misc does not exist
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/FastByteComparisons.java:[27,16]
> package sun.misc does not exist
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/FastByteComparisons.java:[134,20]
> cannot find symbol
> [ERROR] symbol: class Unsafe
> [ERROR] location: class
> org.apache.hadoop.io.FastByteComparisons.LexicographicalComparerHolder.UnsafeComparer
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[50,39]
> cannot find symbol
> [ERROR] symbol: class Signal
> [ERROR] location: class org.apache.hadoop.util.SignalLogger.Handler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[50,21]
> cannot find symbol
> [ERROR] symbol: variable Signal
> [ERROR] location: class org.apache.hadoop.util.SignalLogger.Handler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java:[58,5]
> method does not override or implement a method from a supertype
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[92,20]
> cannot find symbol
> [ERROR] symbol: class Signal
> [ERROR] location: class org.apache.hadoop.service.launcher.IrqHandler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[93,7]
> cannot find symbol
> [ERROR] symbol: variable Signal
> [ERROR] location: class org.apache.hadoop.service.launcher.IrqHandler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[113,5]
> cannot find symbol
> [ERROR] symbol: variable Signal
> [ERROR] location: class org.apache.hadoop.service.launcher.IrqHandler
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/launcher/IrqHandler.java:[125,3]
> method does not override or implement a method from a supertype
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/nativeio/NativeIO.java:[901,17]
> cannot find symbol
> [ERROR] symbol: class Unsafe
> [ERROR] location: class org.apache.hadoop.io.nativeio.NativeIO
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/nativeio/NativeIO.java:[903,7]
> cannot find symbol
> [ERROR] symbol: class Unsafe
> [ERROR] location: class org.apache.hadoop.io.nativeio.NativeIO
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/nativeio/NativeIO.java:[903,24]
> cannot find symbol
> [ERROR] symbol: class Unsafe
> [ERROR] location: class org.apache.hadoop.io.nativeio.NativeIO
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/FastByteComparisons.java:[140,22]
> cannot find symbol
> [ERROR] symbol: class Unsafe
> [ERROR] location: class
> org.apache.hadoop.io.FastByteComparisons.LexicographicalComparerHolder.UnsafeComparer
> [ERROR]
> /hadoop/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/FastByteComparisons.java:[145,29]
> cannot find symbol
> [ERROR] symbol: class Unsafe
> [ERROR] -> [Help 1]
> [ERROR]
> [ERROR] To see the full stack trace of the errors, re-run Maven with the -e
> switch.
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR]
> [ERROR] For more information about the errors and possible solutions, please
> read the following articles:
> [ERROR] [Help 1]
> http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
> [ERROR]
> [ERROR] After correcting the problems, you can resume the build with the
> command
> [ERROR] mvn <args> -rf :hadoop-common {code}
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