Jens right. I'll just post the full configuration:
<!-- - GWT Maven Plugin -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${gwtVersion}</version>
<executions>
<execution>
<goals>
<!-- <goal>clean</goal> -->
<goal>compile</goal>
</goals>
</execution>
</executions>
<configuration>
<gwtSdkFirstInClasspath>true</gwtSdkFirstInClasspath>
<runTarget>etsyheroku.html</runTarget>
<hostedWebapp>${webappDirectory}</hostedWebapp>
</configuration>
</plugin>
On Tuesday, December 3, 2013 10:05:08 PM UTC+2, umesh shaw wrote:
>
> I am having this error. tried all the option to delete gwt cache, temp
> folder, etc from online. but still no luck
>
> Please help..
>
> [ERROR] Exception in thread "pool-1-thread-323"
> *java.lang.NullPointerException*
>
> [ERROR] at com.google.gwt.dev.util.DiskCache.transferToStream(
> *DiskCache.java:187*)
>
> [ERROR] at com.google.gwt.dev.util.DiskCacheToken.writeObject(
> *DiskCacheToken.java:91*)
>
> [ERROR] at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown
> Source)
>
> [ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> *DelegatingMethodAccessorImpl.java:25*)
>
> [ERROR] at java.lang.reflect.Method.invoke(*Method.java:597*)
>
> [ERROR] at java.io.ObjectStreamClass.invokeWriteObject(
> *ObjectStreamClass.java:940*)
>
> [ERROR] at java.io.ObjectOutputStream.writeSerialData(
> *ObjectOutputStream.java:1469*)
>
> [ERROR] at java.io.ObjectOutputStream.writeOrdinaryObject(
> *ObjectOutputStream.java:1400*)
>
> [ERROR] at java.io.ObjectOutputStream.writeObject0(
> *ObjectOutputStream.java:1158*)
>
> [ERROR] at java.io.ObjectOutputStream.defaultWriteFields(
> *ObjectOutputStream.java:1518*)
>
> [ERROR] at java.io.ObjectOutputStream.defaultWriteObject(
> *ObjectOutputStream.java:422*)
>
> [ERROR] at
> com.google.gwt.dev.javac.CachedCompilationUnit.writeObject(
> *CachedCompilationUnit.java:222*)
>
> [ERROR] at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown
> Source)
>
> [ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> *DelegatingMethodAccessorImpl.java:25*)
>
> [ERROR] at java.lang.reflect.Method.invoke(*Method.java:597*)
>
> [ERROR] at java.io.ObjectStreamClass.invokeWriteObject(
> *ObjectStreamClass.java:940*)
>
> [ERROR] at java.io.ObjectOutputStream.writeSerialData(
> *ObjectOutputStream.java:1469*)
>
> [ERROR] at java.io.ObjectOutputStream.writeOrdinaryObject(
> *ObjectOutputStream.java:1400*)
>
> [ERROR] at java.io.ObjectOutputStream.writeObject0(
> *ObjectOutputStream.java:1158*)
>
> [ERROR] at java.io.ObjectOutputStream.writeObject(
> *ObjectOutputStream.java:330*)
>
> [ERROR] at com.google.gwt.dev.javac.PersistentUnitCache$6.run(
> *PersistentUnitCache.java:446*)
>
> [ERROR] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
> *ThreadPoolExecutor.java:895*)
>
> [ERROR] at java.util.concurrent.ThreadPoolExecutor$Worker.run(
> *ThreadPoolExecutor.java:918*)
>
> [ERROR] at java.lang.Thread.run(*Thread.java:662*)
>
> [ERROR] Exception in thread "pool-1-thread-322"
> *java.lang.NullPointerException*
>
> [ERROR] at com.google.gwt.dev.util.DiskCache.transferToStream(
> *DiskCache.java:187*)
>
> [ERROR] at com.google.gwt.dev.util.DiskCacheToken.writeObject(
> *DiskCacheToken.java:91*)
>
> [ERROR] at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown
> Source)
>
> [ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> *DelegatingMethodAccessorImpl.java:25*)
>
> [ERROR] at java.lang.reflect.Method.invoke(*Method.java:597*)
>
> [ERROR] at java.io.ObjectStreamClass.invokeWriteObject(
> *ObjectStreamClass.java:940*)
>
> [ERROR] at java.io.ObjectOutputStream.writeSerialData(
> *ObjectOutputStream.java:1469*)
>
> [ERROR] at java.io.ObjectOutputStream.writeOrdinaryObject(
> *ObjectOutputStream.java:1400*)
>
> [ERROR] at java.io.ObjectOutputStream.writeObject0(
> *ObjectOutputStream.java:1158*)
>
> [ERROR] at java.io.ObjectOutputStream.defaultWriteFields(
> *ObjectOutputStream.java:1518*)
>
> [ERROR] at java.io.ObjectOutputStream.defaultWriteObject(
> *ObjectOutputStream.java:422*)
>
> [ERROR] at
> com.google.gwt.dev.javac.CachedCompilationUnit.writeObject(
> *CachedCompilationUnit.java:222*)
>
> [ERROR] at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown
> Source)
>
> [ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> *DelegatingMethodAccessorImpl.java:25*)
>
> [ERROR] at java.lang.reflect.Method.invoke(*Method.java:597*)
>
> [ERROR] at java.io.ObjectStreamClass.invokeWriteObject(
> *ObjectStreamClass.java:940*)
>
> [ERROR] at java.io.ObjectOutputStream.writeSerialData(
> *ObjectOutputStream.java:1469*)
>
> [ERROR] at java.io.ObjectOutputStream.writeOrdinaryObject(
> *ObjectOutputStream.java:1400*)
>
> [ERROR] at java.io.ObjectOutputStream.writeObject0(
> *ObjectOutputStream.java:1158*)
>
> [ERROR] at java.io.ObjectOutputStream.writeObject(
> *ObjectOutputStream.java:330*)
>
> [ERROR] at com.google.gwt.dev.javac.PersistentUnitCache$6.run(
> *PersistentUnitCache.java:446*)
>
> [ERROR] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
> *ThreadPoolExecutor.java:895*)
>
> [ERROR] at java.util.concurrent.ThreadPoolExecutor$Worker.run(
> *ThreadPoolExecutor.java:918*)
>
> [ERROR] at java.lang.Thread.run(*Thread.java:662*)
>
> [ERROR] Exception in thread "pool-1-thread-321"
> *java.lang.NullPointerException*
>
> [ERROR] at com.google.gwt.dev.util.DiskCache.transferToStream(
> *DiskCache.java:187*)
>
> [ERROR] at com.google.gwt.dev.util.DiskCacheToken.writeObject(
> *DiskCacheToken.java:91*)
>
> [ERROR] at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown
> Source)
>
> [ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> *DelegatingMethodAccessorImpl.java:25*)
>
> [ERROR] at java.lang.reflect.Method.invoke(*Method.java:597*)
>
> [ERROR] at java.io.ObjectStreamClass.invokeWriteObject(
> *ObjectStreamClass.java:940*)
>
>
> *Is the below build tag correct from POM file. I am also using smartgwt in
> the dependency.*
>
> <build>
>
> <!-- Generate compiled stuff in the folder used for developing mode -->
>
> <outputDirectory>${webappDirectory}/WEB-INF/classes</outputDirectory>
>
> <plugins>
>
> <!-- GWT Maven Plugin -->
>
> <plugin>
>
> <groupId>org.codehaus.mojo</groupId>
>
> <artifactId>gwt-maven-plugin</artifactId>
>
> <version>2.5.1</version>
>
> <executions>
>
> <execution>
>
> <goals>
>
> <goal>compile</goal>
>
> </goals>
>
> </execution>
>
> </executions>
>
> <!-- Plugin configuration. There are many available options, see
>
> gwt-maven-plugin documentation at codehaus.org -->
>
> <configuration>
>
> <runTarget>index.html</runTarget>
>
> <hostedWebapp>${webappDirectory}</hostedWebapp>
>
> <extraJvmArgs>-Xms128m -Xss1M -Xmx512m</extraJvmArgs>
>
> </configuration>
>
> </plugin>
>
>
> <!-- Copy static web files before executing gwt:run -->
>
> <plugin>
>
> <groupId>org.apache.maven.plugins</groupId>
>
> <artifactId>maven-war-plugin</artifactId>
>
> <version>2.1.1</version>
>
> <executions>
>
> <execution>
>
> <phase>compile</phase>
>
> </execution>
>
> </executions>
>
> <configuration>
>
> <webappDirectory>${webappDirectory}</webappDirectory>
>
> </configuration>
>
> </plugin>
>
> <plugin>
>
> <groupId>org.apache.maven.plugins</groupId>
>
> <artifactId>maven-compiler-plugin</artifactId>
>
> <version>2.3.2</version>
>
> <configuration>
>
> <source>1.6</source>
>
> <target>1.6</target>
>
> </configuration>
>
> </plugin>
>
> </plugins>
>
> </build>
>
>
>
>
>
>
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