[lang3]java.lang.ClassNotFoundException when use Apache Commons Lang3 SerializationUtils.deserialize
I use Apache Commons Lang3's SerializationUtils in the code. SerializationUtils.serialize() to store a customized class as files into disk and SerializationUtils.deserialize(byte[]) to restore them again. In the local environment (Mac OS), all serialized files can be deserialized normally and no error happens. But when I copy these serialized files into HDFS, and read them from HDFS by using Spark/Scala, a SerializeException happens. The Apache Commons Lang3 version is: org.apache.commons commons-lang3 3.9 the stack error as below: org.apache.commons.lang3.SerializationException: java.lang.ClassNotFoundException: com.. at org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:227) at org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:265) at com.com...deserializeFrom(XXX.java:81) at com.XXX.$$anonfun$3.apply(B.scala:157) at com.XXX.$$anonfun$3.apply(B.scala:153) at scala.collection.Iterator$$anon$11.next(Iterator.scala:409) at scala.collection.Iterator$class.foreach(Iterator.scala:893) at scala.collection.AbstractIterator.foreach(Iterator.scala:1336) at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59) at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104) at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48) at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:310) at scala.collection.AbstractIterator.to(Iterator.scala:1336) at scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:302) at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1336) at scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:289) at scala.collection.AbstractIterator.toArray(Iterator.scala:1336) at org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$12.apply(RDD.scala:945) at org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$12.apply(RDD.scala:945) at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2074) at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2074) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87) at org.apache.spark.scheduler.Task.run(Task.scala:109) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:345) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.ClassNotFoundException: com.. at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:686) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1868) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1751) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2042) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) at org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:223) I've check the loaded byte[]'s length, both from local and from HDFS are same. But why it can not be deserialized from HDFS?
Re: [lang3]java.lang.ClassNotFoundException when use Apache Commons Lang3 SerializationUtils.deserialize
Thanks. I've tried it, the new Block before it is OK.
I've solved it and posted another issue to describe this progress. The details
refer to another email: Java Generic T makes ClassNotFoundException
在 2019/6/27 下午8:41, Tomo Suzuki 写道:
My suggestion after reading ClassNotFoundException is to try to instantiate
the class just before deserializing it:
public static Block deserializeFrom(byte[] bytes) {
// Dummy instantiation to ensure Block class and its related classes
are available
System.out.println("dummy = " + new Block());
System.out.println("byte length = " + bytes.length); // Does this match
what you expect?
try {
Block b = SerializationUtils.deserialize(bytes);
...
Looking forward to hearing the result.
On Wed, Jun 26, 2019 at 11:03 PM big data
<mailto:bigdatab...@outlook.com> wrote:
The XXX Class named Block, below is part codes of it:
The deserialize code like this:
public static Block deserializeFrom(byte[] bytes) {
try {
Block b = SerializationUtils.deserialize(bytes);
System.out.println("b="+b);
return b;
} catch (ClassCastException e) {
System.out.println("ClassCastException");
e.printStackTrace();
} catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException");
e.printStackTrace();
} catch (SerializationException e) {
System.out.println("SerializationException");
e.printStackTrace();
}
return null;
}
The Spark code is:
val fis = spark.sparkContext.binaryFiles("/folder/abc*.file")
val RDD = fis.map(x => {
val content = x._2.toArray()
val b = Block.deserializeFrom(content)
...
}
All codes above can run successfully in Spark local mode, but when run it
in Yarn cluster mode, the error happens.
在 2019/6/27 上午9:49, Tomo Suzuki 写道:
I'm afraid that I don't have enough information to troubleshoot problem in
com.XXX.XXX. It would be great if you can create a minimal example project
that can reproduce the same issue.
Regards,
Tomo
On Wed, Jun 26, 2019 at 9:20 PM big data
<mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com> wrote:
Hi,
Actually, the class com.XXX.XXX is normally called in the before spark
code, and this exception error is happened in one static method of this
class.
So the jar dependency problem can be excluded.
在 2019/6/26 下午10:23, Tomo Suzuki 写道:
Hi Big data,
I don't use SerializationUtils, but if I interpret the error message:
ClassNotFoundException: com..
, this says com.. is not available in the class path of JVM
(which
your Spark is running on). I would verify that you can instantiate
com.. in Spark/Scala *without* SerializationUtils.
Regards,
Tomo
On Wed, Jun 26, 2019 at 4:12 AM big data
<mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com>
wrote:
I use Apache Commons Lang3's SerializationUtils in the code.
SerializationUtils.serialize()
to store a customized class as files into disk and
SerializationUtils.deserialize(byte[])
to restore them again.
In the local environment (Mac OS), all serialized files can be
deserialized normally and no error happens. But when I copy these
serialized files into HDFS, and read them from HDFS by using
Spark/Scala, a
SerializeException happens.
The Apache Commons Lang3 version is:
org.apache.commons
commons-lang3
3.9
the stack error as below:
org.apache.commons.lang3.SerializationException:
java.lang.ClassNotFoundException: com..
at
org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:227)
at
org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:265)
at com.com...deserializeFrom(XXX.java:81)
at com.XXX.$$anonfun$3.apply(B.scala:157)
at com.XXX.$$anonfun$3.apply(B.scala:153)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at
scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59)
at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104)
at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48)
at scala.collection.TraversableOnce$class.to
(TraversableOnce.scala:310)
at scala.collection.AbstractIterator.to(Iterator.scala:1336)
at
scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:302)
at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1336)
at
scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:289)
at scala.collection.AbstractIterator.toArray(Iterator.scala:1336)
at
org.apache.spark.rdd.RDD$$anonfun$collec
Re: [lang3]java.lang.ClassNotFoundException when use Apache Commons Lang3 SerializationUtils.deserialize
mon Lang package at
final T obj = (T) in.readObject();
T is Block class, and when it want to transfer object to T (Block), it seems
that it can not find Block class in JVM. so ClassNotFoundException happens.
Then I copy Lang source code and change T to Block directly, the program runs
OK again like below:
public static Block deserializeFrom(byte[] bytes) {
//Block b = SerializationUtils.deserialize(bytes);
ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);
try (ObjectInputStream in = new ObjectInputStream(inputStream)) {
return (Block) in.readObject();
} catch (final ClassNotFoundException | IOException ex) {
System.out.println("ClassNotFoundException | IOException");
ex.printStackTrace();
} catch (ClassCastException e) {
System.out.println("ClassCastException");
e.printStackTrace();
} catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException");
e.printStackTrace();
} catch (SerializationException e) {
System.out.println("SerializationException");
e.printStackTrace();
}
return null;
}
在 2019/6/28 上午10:08, Tomo Suzuki 写道:
Glad to hear you made progress. Good luck!
(Another possibility: you might have changed the package or class name
since you saved the HDFS file.)
On Thu, Jun 27, 2019 at 21:25 big data
<mailto:bigdatab...@outlook.com> wrote:
Thanks. I've tried it, the new Block before it is OK.
I've solved it and posted another issue to describe this progress. The
details refer to another email: Java Generic T makes ClassNotFoundException
在 2019/6/27 下午8:41, Tomo Suzuki 写道:
My suggestion after reading ClassNotFoundException is to try to instantiate
the class just before deserializing it:
public static Block deserializeFrom(byte[] bytes) {
// Dummy instantiation to ensure Block class and its related classes
are available
System.out.println("dummy = " + new Block());
System.out.println("byte length = " + bytes.length); // Does this match
what you expect?
try {
Block b = SerializationUtils.deserialize(bytes);
...
Looking forward to hearing the result.
On Wed, Jun 26, 2019 at 11:03 PM big data
mailto:bigdatab...@outlook.com>
<mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com> wrote:
The XXX Class named Block, below is part codes of it:
The deserialize code like this:
public static Block deserializeFrom(byte[] bytes) {
try {
Block b = SerializationUtils.deserialize(bytes);
System.out.println("b="+b);
return b;
} catch (ClassCastException e) {
System.out.println("ClassCastException");
e.printStackTrace();
} catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException");
e.printStackTrace();
} catch (SerializationException e) {
System.out.println("SerializationException");
e.printStackTrace();
}
return null;
}
The Spark code is:
val fis = spark.sparkContext.binaryFiles("/folder/abc*.file")
val RDD = fis.map(x => {
val content = x._2.toArray()
val b = Block.deserializeFrom(content)
...
}
All codes above can run successfully in Spark local mode, but when run it
in Yarn cluster mode, the error happens.
在 2019/6/27 上午9:49, Tomo Suzuki 写道:
I'm afraid that I don't have enough information to troubleshoot problem in
com.XXX.XXX. It would be great if you can create a minimal example project
that can reproduce the same issue.
Regards,
Tomo
On Wed, Jun 26, 2019 at 9:20 PM big data
<mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com>
wrote:
Hi,
Actually, the class com.XXX.XXX is normally called in the before spark
code, and this exception error is happened in one static method of this
class.
So the jar dependency problem can be excluded.
在 2019/6/26 下午10:23, Tomo Suzuki 写道:
Hi Big data,
I don't use SerializationUtils, but if I interpret the error message:
ClassNotFoundException: com..
, this says com.. is not available in the class path of JVM
(which
your Spark is running on). I would verify that you can instantiate
com.. in Spark/Scala *without* SerializationUtils.
Regards,
Tomo
On Wed, Jun 26, 2019 at 4:12 AM big data
<mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com><mailto:bigdatab...@outlook.com>
wrote:
I use Apache Commons Lang3's SerializationUtils in the code.
SerializationUtils.serialize()
to store a customized class as files into disk and
SerializationUtils.des
Re: [lang3]java.lang.ClassNotFoundException when use Apache Commons Lang3 SerializationUtils.deserialize
The XXX Class named Block, below is part codes of it:
The deserialize code like this:
public static Block deserializeFrom(byte[] bytes) {
try {
Block b = SerializationUtils.deserialize(bytes);
System.out.println("b="+b);
return b;
} catch (ClassCastException e) {
System.out.println("ClassCastException");
e.printStackTrace();
} catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException");
e.printStackTrace();
} catch (SerializationException e) {
System.out.println("SerializationException");
e.printStackTrace();
}
return null;
}
The Spark code is:
val fis = spark.sparkContext.binaryFiles("/folder/abc*.file")
val RDD = fis.map(x => {
val content = x._2.toArray()
val b = Block.deserializeFrom(content)
...
}
All codes above can run successfully in Spark local mode, but when run it in
Yarn cluster mode, the error happens.
在 2019/6/27 上午9:49, Tomo Suzuki 写道:
I'm afraid that I don't have enough information to troubleshoot problem in
com.XXX.XXX. It would be great if you can create a minimal example project
that can reproduce the same issue.
Regards,
Tomo
On Wed, Jun 26, 2019 at 9:20 PM big data
<mailto:bigdatab...@outlook.com> wrote:
Hi,
Actually, the class com.XXX.XXX is normally called in the before spark
code, and this exception error is happened in one static method of this
class.
So the jar dependency problem can be excluded.
在 2019/6/26 下午10:23, Tomo Suzuki 写道:
Hi Big data,
I don't use SerializationUtils, but if I interpret the error message:
ClassNotFoundException: com..
, this says com.. is not available in the class path of JVM
(which
your Spark is running on). I would verify that you can instantiate
com.. in Spark/Scala *without* SerializationUtils.
Regards,
Tomo
On Wed, Jun 26, 2019 at 4:12 AM big data
<mailto:bigdatab...@outlook.com>
wrote:
I use Apache Commons Lang3's SerializationUtils in the code.
SerializationUtils.serialize()
to store a customized class as files into disk and
SerializationUtils.deserialize(byte[])
to restore them again.
In the local environment (Mac OS), all serialized files can be
deserialized normally and no error happens. But when I copy these
serialized files into HDFS, and read them from HDFS by using
Spark/Scala, a
SerializeException happens.
The Apache Commons Lang3 version is:
org.apache.commons
commons-lang3
3.9
the stack error as below:
org.apache.commons.lang3.SerializationException:
java.lang.ClassNotFoundException: com..
at
org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:227)
at
org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:265)
at com.com...deserializeFrom(XXX.java:81)
at com.XXX.$$anonfun$3.apply(B.scala:157)
at com.XXX.$$anonfun$3.apply(B.scala:153)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at
scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59)
at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104)
at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48)
at scala.collection.TraversableOnce$class.to
(TraversableOnce.scala:310)
at scala.collection.AbstractIterator.to(Iterator.scala:1336)
at
scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:302)
at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1336)
at
scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:289)
at scala.collection.AbstractIterator.toArray(Iterator.scala:1336)
at
org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$12.apply(RDD.scala:945)
at
org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$12.apply(RDD.scala:945)
at
org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2074)
at
org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2074)
at
org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87)
at org.apache.spark.scheduler.Task.run(Task.scala:109)
at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:345)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: com..
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLo
Re: [lang3]java.lang.ClassNotFoundException when use Apache Commons Lang3 SerializationUtils.deserialize
Hi, Actually, the class com.XXX.XXX is normally called in the before spark code, and this exception error is happened in one static method of this class. So the jar dependency problem can be excluded. 在 2019/6/26 下午10:23, Tomo Suzuki 写道: > Hi Big data, > > I don't use SerializationUtils, but if I interpret the error message: > >ClassNotFoundException: com.. > > , this says com.. is not available in the class path of JVM (which > your Spark is running on). I would verify that you can instantiate > com.. in Spark/Scala *without* SerializationUtils. > > Regards, > Tomo > > > > On Wed, Jun 26, 2019 at 4:12 AM big data wrote: > >> I use Apache Commons Lang3's SerializationUtils in the code. >> >> SerializationUtils.serialize() >> >> to store a customized class as files into disk and >> >> SerializationUtils.deserialize(byte[]) >> >> to restore them again. >> >> In the local environment (Mac OS), all serialized files can be >> deserialized normally and no error happens. But when I copy these >> serialized files into HDFS, and read them from HDFS by using Spark/Scala, a >> SerializeException happens. >> >> The Apache Commons Lang3 version is: >> >> >> org.apache.commons >> commons-lang3 >> 3.9 >> >> >> >> the stack error as below: >> >> org.apache.commons.lang3.SerializationException: >> java.lang.ClassNotFoundException: com.. >> at >> org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:227) >> at >> org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:265) >> at com.com...deserializeFrom(XXX.java:81) >> at com.XXX.$$anonfun$3.apply(B.scala:157) >> at com.XXX.$$anonfun$3.apply(B.scala:153) >> at scala.collection.Iterator$$anon$11.next(Iterator.scala:409) >> at scala.collection.Iterator$class.foreach(Iterator.scala:893) >> at scala.collection.AbstractIterator.foreach(Iterator.scala:1336) >> at >> scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59) >> at >> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104) >> at >> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48) >> at scala.collection.TraversableOnce$class.to >> (TraversableOnce.scala:310) >> at scala.collection.AbstractIterator.to(Iterator.scala:1336) >> at >> scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:302) >> at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1336) >> at >> scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:289) >> at scala.collection.AbstractIterator.toArray(Iterator.scala:1336) >> at >> org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$12.apply(RDD.scala:945) >> at >> org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$12.apply(RDD.scala:945) >> at >> org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2074) >> at >> org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2074) >> at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87) >> at org.apache.spark.scheduler.Task.run(Task.scala:109) >> at >> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:345) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) >> at java.lang.Thread.run(Thread.java:748) >> Caused by: java.lang.ClassNotFoundException: com.. >> at java.net.URLClassLoader.findClass(URLClassLoader.java:381) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:424) >> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:357) >> at java.lang.Class.forName0(Native Method) >> at java.lang.Class.forName(Class.java:348) >> at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:686) >> at >> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1868) >> at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1751) >> at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2042) >> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) >> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) >> at >> org.apache.commons.lang3.SerializationUtils.deserialize(SerializationUtils.java:223) >> >> I've check the loaded byte[]'s length, both from local and from HDFS are >> same. But why it can not be deserialized from HDFS? >> >
