Arrays.copyOf - no such method error in java 1.5

[ravi-polampelli]

Hi Anuj,

I am seeing below exception, I think this is due to Arrays.copyOf method is introduced in 1.6,
As we are saying we support version 1.5 also, I think we need to provide our own method for this function.

java.lang.NoSuchMethodError: java/util/Arrays.copyOf([Ljava/lang/Object;I)[Ljava/lang/Object;
at org.easetech.easytest.loader.CSVDataLoader.writeData(CSVDataLoader.java:182)
at org.easetech.easytest.util.RunAftersWithOutputData.evaluate(RunAftersWithOutputData.java:120)

I saw below code from , http://stackoverflow.com/questions/2789193/java-copyof-method-problem-with-an-array-of-objects

/**

• Reallocates an array with a new size, and copies the contents

• of the old array to the new array.

• @param oldArray the old array, to be reallocated.

• @param newSize the new array size.

• @return A new array with the same contents.
  */
  private static Object resizeArray (Object oldArray, int newSize) {
  int oldSize = java.lang.reflect.Array.getLength(oldArray);
  Class elementType = oldArray.getClass().getComponentType();
  Object newArray = java.lang.reflect.Array.newInstance(
  elementType,newSize);
  int preserveLength = Math.min(oldSize,newSize);
  if (preserveLength > 0)
  System.arraycopy (oldArray,0,newArray,0,preserveLength);

  return newArray;
  }

[anujgandharv]

Yes. Arrays.copyOf is a Java 1.6 method.
The above might not work because at one place we need a new array with the size bigger than the original one. Although I am not sure. Will try the above method and let you know.

[ravi-polampelli]

Array.copyOf is replaced with System.arraycopy..

Original -
String[] newSplitValues = Arrays.copyOf(splitValues, splitValues.length);

Updated:
String[] newSplitValues = (String[])Array.newInstance(String[].class.getComponentType(), splitValues.length);
System.arraycopy(splitValues, 0, newSplitValues, 0, Math.min(splitValues.length, newSplitValues.length));

[vovkab]

The same problem is still exists for android 2.1 (api 8):

java.lang.NoSuchMethodError: java.util.Arrays.copyOf
at com.fasterxml.jackson.core.sym.CharsToNameCanonicalizer.copyArrays(CharsToNameCanonicalizer.java:579)
at com.fasterxml.jackson.core.sym.CharsToNameCanonicalizer.findSymbol(CharsToNameCanonicalizer.java:494)
at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._parseName(ReaderBasedJsonParser.java:1210)
at com.fasterxml.jackson.core.json.ReaderBasedJsonParser.nextToken(ReaderBasedJsonParser.java:612)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:118)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:2986)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2091)

[anujgandharv]

HI vovkab,
Could you please elaborate a bit on the scenario when you are getting the error. It will help me solve the issue quicker.

Thanks,
Anuj

[vovkab]

Hi anujgandharv,

[Arrays.copyOf](http://developer.android.com/reference/java/util/Arrays.html#copyOf%28U[], int, java.lang.Class<? extends T[]>%29) is available on android only starting from api 9. If you try to run it on api 8 you will get an error.

The solution can be replacing all Arrays.copyOf with System.arraycopy

Thanks!

[anujgandharv]

Thanks Vladimir.
EasyTest does not have directly any reference to Arrays.copyOf in its source code. Looking at the above stack trace, looks like CharsToNameCanonicalizer class is trying to do Arrays.copyOf. This class is present in jakson-core-lgpl-1.9.11.jar file dependency that EasyTest has.But version 1.9.11 is compatible with Java 1.5 and the code also has System.arraycopy. Are you somehow overriding the jackson JAR version?

[vovkab]

Hi Anuj

Looks like I'm on wrong "forum" :)

I use latest jackson:
compile 'com.fasterxml.jackson.core:jackson-core:2.3.0'
compile 'com.fasterxml.jackson.core:jackson-databind:2.3.0'
compile 'com.fasterxml.jackson.core:jackson-annotations:2.3.0'

And looks like some part of it uses Arrays.copyOf

Just opened a new ticket on fasterxml repo: Issue #131

Thanks for help!