CODEWITHSUNDEEP
ant
Matteo
Matteo

Reputation: 14930

ant-contrib stopped being recognized

Ant is no more able to find ant contribs and I am puzzled since I did not remember changing anything on the machine.

$ ant -f ./build-ivy.xml 
Buildfile: ./build-ivy.xml
  [taskdef] Could not load definitions from resource net/sf/antcontrib/antlib.xml. It could not be found.

BUILD FAILED
/var/lib/jenkins/jobs/Lakshmi-MySQL/workspace/build-ivy.xml:41: Problem: failed to create task or type antlib:org.apache.ivy.ant:settings
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.
No types or tasks have been defined in this namespace yet

This appears to be an antlib declaration. 
Action: Check that the implementing library exists in one of:
        -/usr/share/ant/lib
        -/var/lib/jenkins/.ant/lib
        -a directory added on the command line with the -lib argument

Now the ant-contrib jar file is (as before) in /var/lib/jenkins/.ant/lib and is readable by the user

$ ls -l /var/lib/jenkins/.ant/lib/ant-contrib-1.0b3.jar
-rw-r--r-- 1 jenkins root 224277 Jun 29 09:24 /var/lib/jenkins/.ant/lib/ant-contrib-1.0b3.jar
$ jar tf /var/lib/jenkins/.ant/lib/ant-contrib-1.0b3.jar | head -n 3
META-INF/
META-INF/MANIFEST.MF
net/

Edit

checking with strace: ant is reading the file:

...
[pid 10400] stat("/var/lib/jenkins/.ant/lib/ant-contrib-1.0b3.jar", {st_mode=S_IFREG|0644, st_size=224277, ...}) = 0
[pid 10400] stat("/var/lib/jenkins/.ant/lib/ant-contrib-1.0b3.jar", {st_mode=S_IFREG|0644, st_size=224277, ...}) = 0
[pid 10400] open("/var/lib/jenkins/.ant/lib/ant-contrib-1.0b3.jar", O_RDONLY) = 15
[pid 10400] fstat(15, {st_mode=S_IFREG|0644, st_size=224277, ...}) = 0
[pid 10400] fcntl(15, F_GETFD)          = 0
[pid 10400] fcntl(15, F_SETFD, FD_CLOEXEC) = 0
[pid 10400] lseek(15, 0, SEEK_END)      = 224277
[pid 10400] lseek(15, 224149, SEEK_SET) = 224149
[pid 10400] read(15, "ls/Walls.classPK\1\2\24\3\n\0\0\0\10\0\323]b5\362j"..., 128) = 128
[pid 10400] mmap(NULL, 19477, PROT_READ, MAP_SHARED, 15, 0x32000) = 0x7fb234002000
[pid 10400] lseek(15, 43, SEEK_SET)     = 43
[pid 10400] read(15, "PK\3\4\n\0\0\0\10\0\322]b5\214\246\227\251\206\0\0\0\240\0\0\0\24\0\0\0", 30) = 30
[pid 10400] lseek(15, 93, SEEK_SET)     = 93
[pid 10400] read(15, "M\215\261\16\203 \24Ew\22\376\341\215\355\0>\264\222\224M;upj\323\265A\304\224\244\240\1"..., 134) = 134
...

Upvotes: 1

Views: 1689

Answers (1)

Matteo
Matteo

Reputation: 14930

ANT_HOME was not set this caused the ant script in an ant 1.8.4 installation to execute the default ant 1.7.1 binary (which does not work with ant-contrib)

After setting ANT_HOME to the ant 1.8.4 installation everything worked as expected.

Upvotes: 2

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