Why do I get java.lang.AbstractMethodError when trying to load a blob in the db?
JavaOracleJdbcJava Problem Overview
I've got a problem with JDBC.
I'have the following code:
//blargeparam is a blob column.
PreparedStatement pst =connection.prepareStatement("update gcp_processparams_log set blargeparam= ? where idprocessparamslog=1");
pst.setBinaryStream(1,inputStream);
I get the following error:
Exception in thread "main" java.lang.AbstractMethodError:
oracle.jdbc.driver.T2CPreparedStatement.setBinaryStream(ILjava/io/InputStream;)V
My connection string is jdbc:oracle:oci:@.....
The Oracle version is 11g.
From the error message it seems that something is missing but:
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when I read from the same blob column (with blob.getBytes) everything works.
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The DLL's of the instant client are (correctly) in the library path.
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This is the manifest of the Oracle JDBC JAR in my class path:
Manifest-Version: 1.0 Specification-Title: Oracle JDBC driver classes for use with JDK14 Sealed: true Created-By: 1.4.2_14 (Sun Microsystems Inc.) Implementation-Title: ojdbc14.jar Specification-Vendor: Oracle Corporation Specification-Version: Oracle JDBC Driver version - "10.2.0.4.0" Implementation-Version: Oracle JDBC Driver version - "10.2.0.4.0" Implementation-Vendor: Oracle Corporation Implementation-Time: Sat Feb 2 11:40:29 2008
Java Solutions
Solution 1 - Java
With JDBC, that error usually occurs because your JDBC driver implements an older version of the JDBC API than the one included in your JRE. These older versions are fine so long as you don't try and use a method that appeared in the newer API.
I'm not sure what version of JDBC setBinaryStream appeared in. It's been around for a while, I think.
Regardless, your JDBC driver version (10.2.0.4.0) is quite old, I recommend upgrading it to the version that was released with 11g (download here), and try again.
Solution 2 - Java
It looks that even if the driver 10.2 is compatible with the JDBC3 it may not work with JRE6 as I've found here:
Which JDBC drivers support which versions of Javasoft's JDK?
pre-8i OCI and THIN Drivers - JDK 1.0.x and JDK 1.1.x
8.1.5 OCI and THIN Drivers - JDK 1.0.x and JDK 1.1.x
8.1.6SDK THIN Driver - JDK 1.1.x and JDK 1.2.x (aka Java2)
8.1.6SDK OCI Driver - Only JDK 1.1.x
8.1.6 OCI and THIN Driver - JDK 1.1.x and JDK 1.2.x
8.1.7 OCI and THIN Driver - JDK 1.1.x and JDK 1.2.x
9.0.1 OCI and THIN Driver - JDK 1.1.x, JDK 1.2.x and JDK 1.3.x
9.2.0 OCI and THIN Driver - JDK 1.1.x, JDK 1.2.x, JDK 1.3.x, and JDK 1.4.x
10.1.0 OCI and THIN Driver - JDK 1.2.x, JDK 1.3.x, and JDK 1.4.x
10.2.0 OCI and THIN Driver - JDK 1.2.x, JDK 1.3.x, JDK 1.4.x, and JDK 5.0.x
11.1.0 OCI and THIN Driver - JDK 1.5.x and JDK 1.6.x
Oracle 10.2.0 supports:
Full support for JDBC 3.0
Note that there is no real change in the support for the following in the database. Allthat has changed is that some methods that previously threw SQLException now do something more reasonable instead.
result-set holdability
returning multiple result-sets.
Solution 3 - Java
Here's what the JDK API says about AbstractMethodError:
> Thrown when an application tries to > call an abstract method. Normally, > this error is caught by the compiler; > this error can only occur at run time > if the definition of some class has > incompatibly changed since the > currently executing method was last > compiled.
Bug in the oracle driver, maybe?
Solution 4 - Java
Just put ojdbc6.jar in class path, so that we can fix CallbaleStatement exception:
oracle.jdbc.driver.T4CPreparedStatement.setBinaryStream(ILjava/io/InputStream;J)V)
in Oracle.
Solution 5 - Java
As described in the API of java.sql.PreparedStatement.setBinaryStream() it is available since 1.6 so it is a JDBC 4.0 API! You use a JDBC 3 Driver so this method is not available!
Solution 6 - Java
Just use ojdb6.jar and will fix all such issues.
For maven based applications:
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Download and copy ojdbc6.jar to a directory in your local machine
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From the location where you have copied your jar install the ojdbc6.jar in your local .M2 Repo by issuing below command C:\SRK\Softwares\Libraries>mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.2.0.3 -Dpackaging=jar -Dfile=ojdbc6.jar -DgeneratePom=true
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Add the below in your project pom.xml as ojdbc6.jar dependency
<dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId> <version>11.2.0.3</version> </dependency>
PS: The issue might be due to uses of @Lob annotation in JPA for storing large objects specifically in oracle db columns. Upgrading to 11.2.0.3 (ojdbc6.jar) can resolve the issue.
Solution 7 - Java
In my case this was the error.
> Exception in thread "main" java.lang.AbstractMethodError: oracle.jdbc.driver.T4CConnection.isValid(I)Z at org.apache.tomcat.dbcp.dbcp2.DelegatingConnection.isValid(DelegatingConnection.java:917) at org.apache.tomcat.dbcp.dbcp2.PoolableConnection.validate(PoolableConnection.java:282) at org.apache.tomcat.dbcp.dbcp2.PoolableConnectionFactory.validateConnection(PoolableConnectionFactory.java:356) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2306) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2289) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2038) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1532) at beans.Test.main(Test.java:24)
Solution: I just change ojdbc14.jar to ojdbc6.jar
Solution 8 - Java
I would suggest investigating your classpath very carefully. You might have two different versions of a jar file where one invokes methods in the other and the other method is abstract.
Solution 9 - Java
In my case problem was at context.xml file of my project.
The following from context.xml causes the java.lang.AbstractMethodError, since we didn't show the datasource factory.
<Resource name="jdbc/myoracle"
auth="Container"
type="javax.sql.DataSource"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@(DESCRIPTION = ... "
username="****" password="****" maxActive="10" maxIdle="1"
maxWait="-1" removeAbandoned="true"/>
Simpy adding factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" solved the issue:
<Resource name="jdbc/myoracle"
auth="Container"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" type="javax.sql.DataSource"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@(DESCRIPTION = ... "
username="****" password="****" maxActive="10" maxIdle="1"
maxWait="-1" removeAbandoned="true"/>
To make sure I reproduced the issue several times by removing factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" from Resource
Solution 10 - Java
I do meet this problem. use ojdbc14.jar and jdk 1.6
InputStream in = new FileInputStream(file);
cstmt.setBinaryStream(1, in,file.length()); // got AbstractMethodError
InputStream in = new FileInputStream(file);
cstmt.setBinaryStream(1, in,(int)file.length()); // no problem.
Solution 11 - Java
InputStream in = new FileInputStream(file);
cstmt.setBinaryStream(1, in,file.length());
instead of this u need to use
InputStream in = new FileInputStream(file);
cstmt.setBinaryStream(1, in,(int)file.length());
Solution 12 - Java
The problem is due to older version of ojdbc - ojdbc14.
Place the latest version of ojdbc jar file in your application or shared library. (Only one version should be there and it should be the latest one) As of today - ojdbc6.jar
Check the application libraries and shared libraries on server.
Solution 13 - Java
I think, the reason of the error from JDBC driver, you should get suitable JDBC driver for your Oracle db. You can get it from
http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-112010-090769.html
Solution 14 - Java
I got the same problem and resolved it.
To resolve this problem, you should upgrade commons-dbcp library to latest version (1.4). It will work with latest JDBC drivers.