[ https://issues.jboss.org/browse/SOLDER-320?page=com.atlassian.jira.plugin... ] Ioan LUPU updated SOLDER-320: ----------------------------- Description: Here's the code: public boolean isReadOnly() { return setterMethod == null; } @Override public String toString() { StringBuilder builder = new StringBuilder(); if (isReadOnly()) { builder.append("read-only ").append(setterMethod.toString()).append("; "); } builder.append(getterMethod.toString()); return builder.toString(); } So... isReadOnly() returns true if setterMethod is null. This means a NullPointerException on the builder.append("read-only ").append(setterMethod.toString()).append("; "); line. was: Here's the code: public boolean isReadOnly() { return setterMethod == null; } @Override public String toString() { StringBuilder builder = new StringBuilder(); if (isReadOnly()) { builder.append("read-only ").append(setterMethod.toString()).append("; "); } builder.append(getterMethod.toString()); return builder.toString(); } So... isReadOnly() returns true if setterMethod is null. This means a NullPointerException on the builder.append("read-only ").append(setterMethod.toString()).append("; "); line. And a simple piece of code to reproduce it: import org.jboss.solder.properties.query.PropertyQueries; public class Test01 { public static void main(String[] args) { System.out.println(PropertyQueries.createQuery(Test01.class).getResultList()); // Exception in thread "main" java.lang.NullPointerException // at org.jboss.solder.properties.MethodPropertyImpl.toString(MethodPropertyImpl.java:174) // at java.lang.String.valueOf(String.java:2826) // at java.lang.StringBuilder.append(StringBuilder.java:115) // at java.util.AbstractCollection.toString(AbstractCollection.java:422) // at java.lang.String.valueOf(String.java:2826) // at java.io.PrintStream.println(PrintStream.java:771) // at Test01.main(Test01.java:6) } } Steps to Reproduce: And a simple piece of code to reproduce it: import org.jboss.solder.properties.query.PropertyQueries; public class Test01 { public static void main(String[] args) { System.out.println(PropertyQueries.createQuery(Test01.class).getResultList()); // Exception in thread "main" java.lang.NullPointerException // at org.jboss.solder.properties.MethodPropertyImpl.toString(MethodPropertyImpl.java:174) // at java.lang.String.valueOf(String.java:2826) // at java.lang.StringBuilder.append(StringBuilder.java:115) // at java.util.AbstractCollection.toString(AbstractCollection.java:422) // at java.lang.String.valueOf(String.java:2826) // at java.io.PrintStream.println(PrintStream.java:771) // at Test01.main(Test01.java:6) } } -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira