<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hello,<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I downloaded the JBoss Rules 4.0 Eclipse IDE. I built a small project with about 120 rules. My test asserts around 500 objects. When I try to add one more rule (regardless of the content of the rule) I get the error below, stating no such method error. Even if I add the following rule, I still get the error:</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT class="Apple-style-span" color="#960000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">rule</SPAN></FONT><FONT class="Apple-style-span" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;"> </SPAN></FONT><FONT class="Apple-style-span" color="#008000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">"new rule"</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#960000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">when</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">Object()</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#960000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">then</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">System.out.print(</SPAN></FONT><FONT class="Apple-style-span" color="#008000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">"test"</SPAN></FONT><FONT class="Apple-style-span" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">);</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT class="Apple-style-span" color="#960000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">end</SPAN></FONT></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>What other problems can throw these errors?</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Thanks,</DIV><DIV>Steven</DIV><DIV><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV style="">--</DIV><DIV style="">Steven E. Waldren, M.D., M.S.</DIV><DIV style="">OpenHealth Data</DIV><DIV>Skype: steven.waldren</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>======= THE ERROR ==========</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem;</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.apache.commons.jci.compilers.EclipseJavaCompiler$2.acceptResult(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">EclipseJavaCompiler.java:295</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.eclipse.jdt.internal.compiler.Compiler.compile(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">Compiler.java:454</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.apache.commons.jci.compilers.EclipseJavaCompiler.compile(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">EclipseJavaCompiler.java:332</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">JavaDialect.java:311</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.drools.compiler.PackageBuilder.addPackage(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">PackageBuilder.java:237</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.drools.compiler.PackageBuilder.addPackageFromDrl(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">PackageBuilder.java:157</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at com.sample.DroolsTest.readRule(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">DroolsTest.java:78</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at com.sample.DroolsTest.main(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">DroolsTest.java:37</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem;</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.apache.commons.jci.compilers.EclipseJavaCompiler$2.acceptResult(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">EclipseJavaCompiler.java:295</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.eclipse.jdt.internal.compiler.Compiler.compile(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">Compiler.java:454</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.apache.commons.jci.compilers.EclipseJavaCompiler.compile(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">EclipseJavaCompiler.java:332</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">JavaDialect.java:311</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.drools.compiler.PackageBuilder.addPackage(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">PackageBuilder.java:237</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at org.drools.compiler.PackageBuilder.addPackageFromDrl(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">PackageBuilder.java:157</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at com.sample.DroolsTest.readRule(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">DroolsTest.java:78</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">at com.sample.DroolsTest.main(</SPAN></FONT><FONT class="Apple-style-span" color="#000080" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px; text-decoration: underline;">DroolsTest.java:37</SPAN></FONT><FONT class="Apple-style-span" color="#FF0000" face="Monaco" size="3"><SPAN class="Apple-style-span" style="font-size: 11px;">)</SPAN></FONT></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN></SPAN></DIV><BR></DIV></BODY></HTML>