Compile book-examples/StringUtil test sources

Add pom.xml for compilation,
move sources
remove obsolete pre-compiled class files.

jbmc/regression/book-examples/StringUtil/functional_property.desc

@@ -1,6 +1,6 @@
 CORE
 StringUtil.getLastToken
---max-nondet-string-length 100 --unwind 2 --classpath `../../../../scripts/format_classpath.sh . ../../../lib/java-models-library/target/core-models.jar ../../../lib/java-models-library/target/cprover-api.jar`
+--max-nondet-string-length 100 --unwind 2 --classpath `../../../../scripts/format_classpath.sh target/classes ../../../lib/java-models-library/target/core-models.jar ../../../lib/java-models-library/target/cprover-api.jar`
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$

jbmc/regression/book-examples/StringUtil/pom.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.cprover.regression</groupId>
+    <artifactId>regression.book-examples.StringUtil</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.cprover.regression</groupId>
+        <artifactId>regression.book-examples</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-jar-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>default-jar</id>
+                        <phase>none</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

jbmc/regression/book-examples/pom.xml

@@ -18,6 +18,7 @@
         <module>BinarySearch</module>
         <module>LocatorHandler</module>
         <module>SignalUtil</module>
+        <module>StringUtil</module>
     </modules>
 
 </project>